PHASE LINEARCOMPACT DISC PLAYER

BUILD APOOR -MAN'S WOW &FLUTTER METER

I

St

0

111

27 00I I I06030

fffffffff

/////////../;/;/,i4,:lij,i,,2,11111111111111w0Alvik\%\\"\\,00.\\,Avw..:/nil/111111i iiiiIto,livkvtv%,w,wv.:0,,,...,..A.N...

)MPONENTWITHIITION TV

AFTSMENANALYZER -ER

06

S4.00 NO;

nor,. 11.0

1.11111'1111

HIGH VIDEO FIDELITYAnyway you look at the NEC PJ-4000EN, it's the best looking

rear -screen Video Projector around. Its slim 22 "depth means that it willlook better in your home. Its new dual -pattern screen gathers anddisperses light more evenly so more members of the audience can get abetter look at the PJ-4000EN's brilliant picture,wherever they're sitting or standing. (Its 120degree horizontal viewing angle is the industry'swidest; its 36 degree vertical viewing angle, thetallest.)

A full complement of High Video Fidelityfeatures including 134 -channel frequencysynthesized tuning; two sets of video and

dual -channel audio

REMOTEA wireless full -function remoteputs you in control.

AUDIO INIDEO OTT VIDEO IN MOTT LEFT

SPEAKERS SELECTOREXT MT

THE REARA glance at this rear panel indicates thatthe PJ-4000EN has the flexibility of a

inputs/outputs, simulated stereo genuine video component

from mono, etc., lets you take full advantage of thePJ-4000EN's outstanding performance.

The PJ-4000EN truly lives up to the "Best in Class"reputation established by the other models in the NECLarge Screen Videoline-up. The NECPJ-6000EN (60"diagonal) one-piece

front screen Projection TV offersgreater resolution at a larger picturesize than even its most esteemedcompetitor. The PJ-1000EN (100"diagonal) is the genuine giantscreen two-piece Video Projector,not a smaller screen home unit withadapter lenses.

Whether it's picture quality,styling or features- no matter howyou look at it, NEC is the one to watch.

THE PJ-6000EN AND F 1-1000E N VIDEO PROJECTORS.

NECTHE ONE TO WATCH

NEC Home Electronics (U.S.A.) Inc., 1401 Estes Avenue, Elk Grove Village, Illinois 60007, (312) 228-5900NEC Corporation, Tokyo, Japan

ar &lade on Vdeorsssettes and Dnc. hors, Ernbesy Home Enterumment 01992 The 1.6:1 Company.

THE FRONTNEC's dual -pattern screen design gathers more light ald spreads itmore evenly over wider viewing angles.

THE SIDEMeasuring a mere 22" deep, tie101-400CEN takes up little more roomthan a conventional console Tv

THE BESTWOKINGPROJECTION TV.

GLES.FRO

Enter No. 1 on Reader Service Card

a a .e c:i Libbit.911 ernetwork. A great placeto hide.

You don't usually see crossovers inloudspeaker ads.

Because the crossover is the mostembarrassing part of mostloudspeaker systems; an electronic'kludge' buried deep in the cabinet.Designed to cover up the deficienciesof mediocre drivers. Or, just to savemoney so that the speaker can be soldat a particular price.

The ADS crossover, above, is adifferent breed altogether.

All its components are computergrade, and mounted on a 'militaryspec' epoxy printed circuit board.Chokes are wound with wire importedfrom one country on ferrite coresimported from another.

It's one of the reasons an ADSspeaker sounds better, and tighter inthe low end. It is an elegant solution,in every way.

We bring it to your attentionbecause it is one of many fastidiousdetails which are part of every piece ofequipment (regardless of price) whichcarries the ADS name.

Watch this space for more interest-ing facts. Or contact us.

Write Analog & Digital Systems, Inc.,221 Progress Way, Wilmington, MA01887. Call 800-824-7888 (in Cali-fornia, 800-852-7777) Operator 483.

Or best of all, see an ADS dealer. Wecan only tell you how well they'remade. He can show you how muchbetter they sound.

ADS. Audio apart.

JUNE 1983 VOL. 67, NO. 6

See page 72

FEATURESBATTLE OF THE AMPS Leonard FeldmanBUILD A POOR -MAN'S

WOW & FLUTTER METER M. J. SalvatiONE -BRAND SYSTEM REVIEW:

SANYO PRO-PONENT A/V SYSTEM . Leonard Feldman

56

64

72

EQUIPMENT PROFILESPHASE LINEAR 9500

COMPACT DISC PLAYER Leonard FeldmanSOTA SAPPHIRE TURNTABLE Edward M. LongMAGNAVOX FD1000SL

COMPACT DISC PLAYER Leonard FeldmanSOUNDCRAFTSMEN AE2000

ANALYZER -EQUALIZER Howard A. Roberson

80

86

90

MUSIC REVIEWSROCK/POP RECORDINGS Michael Tearson, Jon & Sally Tiven . 20AUDIOPHILE RECORDINGS 28CLASSICAL RECORDINGS Edward Tatnall Canby 34

DEPARTMENTSSPECTRUM Ivan Berger 9ROADSIGNS Ivan Berger 10TAPE GUIDE Herman Burstein 14AUDIOCLINIC Joseph Giovanelli 16BEHIND THE SCENES Bert Whyte 36VIDEO SCENES Bert Whyte 40AUDIO ETC Edward Tatnall Canby 44SIGNALS & NOISE 50CLASSIFIED ADVERTISING 95ADVERTISING INDEX 112

See page 40. eThe Cover Equipment: Phase Linear 9500Compact Disc player.The Cover Photographer: Carl Zapp.

Audio Publishing, Editorial andAdvertising Production Offices,1515 Broadway, New York, N.Y. 10036.

Subscription Inquiries, (800) 525-9511;in Colorado (303) 447-9330.

stem 1-141. CASSITTI cea D-970

mr. 1 P 3'1

eire..ars,7"7:77. Tz16-7T.k.----7-4°""sioNoine1.1,1,1r. OR.

"`"". iii

MirM. MIN 7OIJOVI

2:47

r-- TANKIP. NG... WY

1,11411.

arr -1.....,

HOW CAN SANSUI CLAIM THE D-970 IMPROVESEVERY TAPE YOU'LL EVER MAKE? SIMPLE.

ITS HI -TECH FEATURES INCLUDE COMPU-TREC.Sansui's remarkably innova-tive approach to microcompu-ter technology is the reasonSansui cassette decks havean unfair advantage overother cassette decks.

Sansui's new top -of -the -line D-970 full -logiccassette deck p-oves itconclusively.Compu-Trec fine tunes for

best performance.With its Comou-Trec

microcomputer system, theD-970 automatically finetunes itself for correct bias,recording level and equaliza-tion, for optimum high levelperformance frcm any tape onthe market. And it does it inless than five seconds. That'sfaster than any other deck.Sansui's hi -tech features putmore pleasure in recording.

As the most advanceddeck Sansui has ever pro-duced, the D-970 is packed

with features and refinementsthat le-. you transfer everynuance of sound onto tape-and actually monitor it whileyou're recording. The uniquecomb nation of the precision.

MIL,,COUNTER 1234

DUAs. MEMORY

20%3 STV20 INOADO

comPu 101

AUTOTARE EM0II STOP.41.1011N - !MAT

II II

COMM.! TUC

NAM OEM

acoreless FG-servo direct -drivecapstan motor and the Dyna-Scrape filter with Hold -BackTension servo, glides the tapesmoothly over the three high-perfo-mance heads.

The result is 0.025% wowand flitter-less than the mostexpensive deck in the world.And Dolby C/B noise reductionis responsible for a superb81dB s gnal-to-noise ratio.There's also a Dual Memory forrepeat play on any section of

tape: a 4digit counter that'sa's-3 a timer and a real-timeclock; 12 LED oeak meters: andaudio record mute. Sansui hasmade high-performance re-cording completely effortless.

Great Sansui decks with theuncommon in common.

There's a lot of theprecision and operatingco seen ence of the D-970in every cassette deckSansui makes. So regard-

less which you choose, you'reassured superb recordingsevery time-automatically

Audition them all at yourSa Hsu and o specialist; orwrite for full details today.

S.NSLI ELEC-RCNICS CORPORATIONLindhurs NJ 37071: Garden. CA 90248Sanst. i E ectriz Co . Ltd.. Tokyo, Japan

W Carsen Co., Ltd., Don Mills. Ont..Caiada M3B 3G7

Dolby is a registered trademark & Dolby Laboratories Potting more pleasure in sound

Enter No. 3 on Reader Service Card

No hangover!Hangover-a rather looseterm to describe the storedenergy resonance in aloudspeaker, the principalcause of coloration thatimmediately tells youyou're listening to aloudspeaker.Take it away and there's anew world-theloudspeakers have nothingmore to say-insteadthere's just the orchestra andthe magic of the music.If music is an important partof your life, then a pairof ESL -63 loudspeakerscould be the bestinvestment you'veever made.

Perhaps evensomething

to celebrate about.For further details and thename and address of yournearest QUAD ESL -63retailer, write: QUAD,425 Sherman Avenue,Palo Alto, CA 94306.In Canada: May AudioMarketing Ltee, Ltd. ,

Longueuil, Quebec J4G 1P8

QUADfor the closest approach

to the original sound©1982 QUAD

AudioPitts

EditorEugene III

Art Director: Cathy Cacchione

Technical Editor: Ivan BergerAssistant Editor: Kay Blumenthal

Editorial Assistant: Andrea Lynne Hecker

Associate Editors:Edward Tatnall Canby, Bert Whyte

Senior Editors:Richard C. Heyser, B. V. Pisha,

Howard A. Roberson

Contributing Editors/Artists:Herman Burstein,

Ted Costa, John Diliberto,Leonard Feldman, Joseph Giovanelli,

David Lander, Edward M. Long,C. G. McProud, Jon Sank, Donald Spoto,

Michael Tearson, Jon & Sally Tiven,Linda Zerella

General Manager: Mary Anne HolleyProduction Manager: Elaine S. Geiger

Charles M. StentifordVice President/Executive Publisher

Marlene F. JensenPublisher

ADVERTISINGAdvertising Director Roman Beyer

(212) 719-6335

Eastern Ad Manager: Stephen W. Witthoft(212) 719-6337

Western Ad Manager: William J. CurtisAccount Manager: Stephen Moser

(213) 487-5880

Classified Ad Manager: Laura J. LoVecch o(212) 719-6338

OPERATIONSV.P./General Manager: Robert F. SpillaneGroup Business Manager: John J. Miller

associate Business Manager: James SlockbowerAdvertising Promotion Director: John Brown

Advertising Research Director: Perry GraysonProduction Director: Karen L. Rosen

CBS CONSUMER PUBLISHINGEXECUTIVE STAFF

President: Robert J. KreftingSr. V.P.: George H. Allen

V.P., Group Publisher Peter G. DiamandisV.P., Finance & Admin.: Robert J. Granata

V.P., Editorial: Harold HayesV.P., Group Publisher: Patrick M. LinskeyV.P., Group Publisher: Michael J. O'Neill

V P., General Manager: Thomas M. Kenney

Thomas 0. RyderV.P., Group Publisher

AUDIO (ISSN 0004-752X. Dewey Decimal Number621.381 or 778.5) is published monthly by CBSPublications, The Consumer Publishing Division of CBSInc.. at 1515 Broadway, New York. N.Y. 10036. Printedin U.S.A. at Nashville, Tenn. Second class postagepaid at New York, N.Y. 10001 and additional mailingoffices. Subscriptions in the U.S., $15.94 for one year,$27.94 for two years, $37.94 for three years: othercountries, add $6.00 per year.

AUDIO is a registered trademark of CBS Inc. ©1983.CBS Publications, The Consumer Publishing Division ofCBS Inc. All rights reserved.

Editorial contributions are welcomed but should beaccompanied by return postage. Submissions will behandled with reasonable care, but the publisherassumes no responsibility for safety or return ofmanuscripts, photographs, or artwork. The Publisher,in her sole discretion, reserves the right to reject anyad copy she deems inappropriate.

AUDIO Publishing. Editorial and AdvertisingProduction offices, 1515 Broadway, New York, N.Y.10036. Subscription offices, P.O. Box 5318, 1255Portland Place. Boulder, Colo. 80322: (800) 525-9511,(303) 447-9330 in Colorado. Postmaster Send changeof address to P.O. Box 5316, 1255 Portland Place,Boulder, Colo. 80322.

4 AUDIO/JUNE 1983Enter No. 4 on Reader Service Card

The Nakamichi DRAGONThe Most Incredible Creature Of The DecadeDragon-the first deck lo reprocuce every cassette with exquisite clar ty and defi-nition. Dragon's revolutionary NAAC (Nakamichi Auto Azimuth Correction) systemdetermines the actual recorded azimuth and continuously manipulates :he play-back head into perfect a ignment without special test tones-automatically-onevery cassette. Restored are the missing highs that have made pre-recorded cas-settes (and many home-recordec ones!) inferior to phonograph rewords. Gone isthe dullness caused by noise -reduction systems that don't receive all the high -frequency energy that was recorded. Move into the future with a deck that'salready there!Dragon-Nakamichi's first auto -reverse deck. Not until we created NAAC to cor-rect the playback -azimuth error that occurs when tape is reproduced in the reversedirection would we put our name on an auto -reverse deck.Dragon-the world's first deck to reproduce in both directions with equal perfec-tion, the first auto -reverse deck to employ Asymmetrical Dual Capstans, each di-rectly driven by its own Super Linear Torque DD Motor electronically locked to aprecision quartz -crystal reference for amazingly low flutter.

Dragon-with a full complement of "traditional" Nakamichi features and such newinnovations as switchable subsonic filters to prevent tape overload when recordinga warped record and an Auto Rec Pause that triggers automatically whenever a10 -second program break is detected!Dragon-another Nakamichi miracle! See it now at your Nakamichi dealer.

nliNakamichiS A Corporation, 1101 Colorado Avenue, Santa Monica. CA 90401

Enter No. 2 on Reader Service Card

Uhrr in): The Surgeon General Has Determined

That Cigarette Smoking Is Dangerous to Ycur Health.8 mg. 'la', O.? mg. nicotine ay. Jer cigarette, =iC Report GEC. '31.

pc

6Sixth ina seriesof how DelcoElectronicsand Bosetechnologycontribute toyour enjoy-ment ofiriving.

Deceptive...isn't it.

The control panel of this Electronically Tuned Receiver(ETR) is simple-and deceptive. Simple so that the receiver is

easy to operate. Deceptive because a very sophisticated technol-ogy lies behind it. A technology that produces high fidelity reception

from the Delco-GM/Bose Music System under conditions that are evendifficJIt for ordinary radio reception.

Tha key to this technology is Delco Electronic's own custom integratedcircuits. These circuits respond automatically to changing reception conditions andprogram re-quirements. So you can enjoy music and driving more.

When you visit your GM dealer* you will understand why Len Feldman wrote in Popular Science:"It's as good as or better than the best home systems I've heard."

'Available as a factory -installed option on Cadillac Seville and Eldorado, Buick Riviera, Ofismobile Toronado,and Corvette by Chevrolet .

[Delco 0Sound so real it will change how

you feel about driving.

SPECTRUMIVAN BERGER

DIALING FOR DIGITS

CD on FMIf you want to hear Compact Discs

in your living room, you may be ableto do it at no cost-via FM. Here inNew York, at least three stations areplaying CDs-WQXR-FM and WNCN(both classical), and WNEW-FM(album -oriented rock). Across theriver in New Jersey, WDHA-FM wasapparently the first in this area tobroadcast CD (last January 30). Thefirst station in the country to do sowas WFMT, Chicago.

Meanwhile, more and more FMstations around the country aregetting CD players-mainly classicaland AOR stations, since that's whatmost CD software is. Sony is workingout promotional deals with stationsaround the country, and other brandssuch as Denon (which supplied theWNCN unit) and Kyocera (which

supplied WDHA) are showing up, too.Can you hear the difference over

radio? So far, I've only managed tocatch CD records via cheap portableor table radios, which don't show offthe difference-when I'm listening tomy home system, there's no CD to beheard. But E.P. reports:

"I've listened to broadcasts ofCompact Discs over three systems-a personal portable during mycommute on a bus, a mini -systemwith $500 car speakers, and over my'good' system, which includes StaxEarspeakers. Each time, theimprovement and difference wereclearly audible; it sounds somethinglike the sudden inclusion of a noise -reduction system. And, best of all, it

made each of the systems soundbetter, a lot better, though it wasclearly best on the big system."

Says Robert Linder, GeneralManager of WDHA-FM, "Rock stationscompress a lot, as you know. But withCD, when the compression brings upthe soft passages, the noise doesn'tcome up with it."

Why compress? "Because mostlisteners are in loud ambientenvironments, such as the car, theoffice or the street. There's also thecompetitive situation, where stationsare judged by volume as to howstrong they are. At least ours istastefully done, if compression can betasteful. We use state-of-the-artequipment, and use it conservatively.But you can't sound too muchdifferent from your competition. I'dlike to see a system that lets stationsbroadcast compressed sound for thecar and so on, but let living -roomlisteners expand it back again."

IEEE ConferenceThe IEEE (Institute of Electrical and

Electronics Engineers) will hold its1983 International Conference onConsumer Electronics from June 8-10at the Ramada O'Hare Inn, in DesPlaines, Ill. The papers to be givencover a wide range of consumerelectronics. Most are on TV andvideo, and a few are on computertopics. Audio will get its heaviestcoverage on the morning of Friday,June 10, in a session on DAD/PCMaudio. Half of the papers given in the

Thursday morning session on "IC andComponent Technologies" are audio -related, too.

Preregistration costs $35 for IEEEmembers, $45 for nonmembers; writeCharles Marik, Motorola CorporateResearch, 1299 East Algonquin Rd.,Schaumburg, III. 60196. At the door,admission will be $10 higher in bothcategories. If you're interested in theWednesday keynote luncheon ($12extra) or the lake cruise that night($25), mention them whilepreregistering.

Record Time: Free ProgramI feel no guilt in taping my own

records for use in my car (or for usein my Walkman, before it walked).They're my records, and since manyare long out of print, I couldn't buynew copies-tape or disc-in anycase. (There's an argument againsttape royalties, come to think of it: If

royalties were charged on blanktapes, the fees I paid would not go tothose past recording artists whosework I am taping, but to those currentones whose work, by and large, I donot tape.)

Taping classical works is easy. Youjust note the time per side, or add upthe times for the two (or three, atmost) bands on that side. But poprecords, with 10 or so short cuts perside, are different. You can either addup a host of times like "2:38" and"4:27," or just record until the taperuns out, erase the partially recordedcut at he tape's end, and start thesecona side with it.

Computer to the rescue. I've writtena record -timing program in BASIC,which adds up the times and eithertells you how long a tape to use or (ifyou've already selected the tape) tellsyou to start the second side of thetape when you have all the cuts thecurrent side can hold. It also addsfour seconds to the time of every cut,to allow for the band betweenselections. If you want a copy ofRECTIME/BAS, send a self-addressed, stamped envelope to me;mark your outer envelope "RECTIME."

If you've written any programsyou'd like to share with fellow Audioreaders (about 10% of our readersown computers), please send them

If the program is long and resideson a machine that I have access to(currently TRS-80 I and III, Apple IIand Atari 800 with disc, TRS-80 ColorComputer and Sinclair/Timex ZX81with cassette), I'd appreciate gettingit on the appropriate magnetic media-which will be returned, ,-;ssnaturely. na90g

oNotal 8'2 tZsUb --° stcf.. 4c

1465 PtIML,VAL(C4):60 011PR101150iF G°10 30 F1'1165) .10o 1.'4

010 .041141IF CO tr.set

AND(104)°°

t°6 I:00 6° nt an°tr'r200e "4 114E" 3° beet/

2101F. '44 start

20 C3413"t

04"(7.15 cut

AUDIO/JUNE 1983

ROADSIGNSIVAN BERGER

TRAFFIC JAMOnce upon a time, you couldhave put all the car stereo newsfrom CES into one page of this

magazine, with space at the bottom forsome jokes, like Reader's Digest. Now,even a column the length of this onecannot hold it all. Hence, Round Two ofour CES once-over-lightly-including afew items not seen at the Show.

There was some increased empha-sis on theft protection. Sony probablyhad the best such idea, in their XRM-

10 Music Shuttle ($380). Its tape trans-port is removable for security (leavingthe radio functions in the dash). Onceremoved, it can be plugged into anaccessory battery pack and head-phone interface (supplied), to becomea Walkman -type portable. The Shut-tle's components are available sepa-rately, in case you lose the portablepart or want another in -dash unit foryour second car. Audiobahn had asomewhat similar idea in their CarportAB -500, with the difference that theentire unit comes out of the dash toplug into a "boom -box" portable unit.

Nakamichi's new TD -1200 in -dashunit also has a theft -discouragementdevice: Each unit has an individuallock code burned into its memory. Ifyou activate the lock system beforeturning the set off, it won't power upagain until you key in the code on itsstation -preset buttons. Unfortunately,those thieves who don't read hi-fi mag-azines won't know a stolen 1200 isworthless until they've ripped it off. Per-haps the set should bear a sticker say-ing why it wouldn't work if stolen, andoffering a no -questions -asked rewardif returned to a Nakamichi dealer. Thatway, stolen units might at least getreturned.

In equalizers, Panasonic has a sim-pler anti -theft idea, a plain cover whichconceals their CY-SG50 booster/equalizer. Called The Composer, thisseven -band unit has unusual and real-istic equalizing capabilities: It has theusual octave spacing only on its lowerfive bands (60/125/250/500/1k), withthe higher bands at 3.5 and 10 kHz.And the 125- and 250 -Hz bands,where most cars have pronouncedresonances, have 18 dB of cut and no

boost, with the usual ± 12 dB boostand cut on all the other bands. A sug-gested curve is marked on the frontpanel. This model has two "25 wait/channel" amps, delivering a still -re-spectable 12.5 watts per channel at1% distortion; the similar CY-SG100has four such amps, plus Panasonic'sAmbience sound circuit (now availablein a portable, too) on the front speak-ers and the option of feeding only bass(below 125 or 350 Hz) to the rearspeakers.

Several other equalizers with delib-erately asymmetric band spacing wereon display. The Rockford-Fosgateequalizers have always had this: Theirthree -band 2100-252 IIR, for instance,has a bass band with variable (30 to45 -Hz) center frequency and up to 18dB of boost with no cut, followed by amid -bass control at 175 Hz with noboost but up (down?) to 12 dB of cut,followed by a high band with a 6 dBper octave rise and hinge frequenciesswitchable from 3 to 10 kHz. The BGW(formerly Spectron) three -band equal-izer has bands at 60 and 180 Hz and16 kHz.

Alpine's seven -band Model 3015($400) has even band spacing-but vtalso has a built-in spectrum analyzer

and automatic equalization, similar todbx's 20/20 home unit. A built-in micro-phone samples the system's frequen-cy response in "Auto EQ" mode, andfour different curves can be set inmemory. In "AVC" mode, the samemike reads ambient low -frequency lev-els, and adjusts system volume tocompensate-no more having to fiddlewith the volume as you slow down,speed up, or stop to ask directions. I'dlike to see a remote microphone on the

3015, so one could automaticallyequalize for different listening posi-tions; oddly, that feature is available onthe French Sofare S-Tronic Mk3 EQ(not sold here), although it only has theautomatic level control.

Metrosound introduced a nonauto-matic equalizer/booster with all -elec-tronic, pushbutton controls instead ofsliders (a feature introduced last yearby Kenwood) and DNR noise reduc-tion. Clarion's new 200EQB2 EQ/booster with DNR has sliders, but itsDNR control is variable-a first, I think,in auto audio.

AUM Audio's AA-9PC nine -bandequalizer has one feature you don'tsee often in mobile components, anRIAA input. It's for use with turntableslike the Technics linear -trackers andsome Sharp models, which can alsooperate on 12 V d.c. (But not while thecar's in motion.)

Zapco has a four -band "paragraph-ic" equalizer, with built-in amplitudecontrols and plug-in modules to controlthe Q (bandwidth) and center frequen-cy of each band; a plug-in with vari-able Q and frequency controls is in theworks to make it a true parametric.The $500 unit also has a built-in elec-tronic crossover and a mono bass

10 AUDIO JUNE 1983

Now A Record ClubWith No Obligation!

Choose Any Multi -Seton this page= 998

TCHAIKOVSKY Swan LakeBoston Symphony OrchestraSeiji Ozawa, ConductorDeutsche Grammophon,3 LPs R2051243 Cassettes C205124

li.Zstcoftr 0146

71,

50 FIEDLER CLASSICS, 50GOLDEN YEARS Fantasia on"Greensleeves, " A ragonaise,Clair de lune, Can -Can, manymore. Boston Pops OrchestralArthur Fiedler, Conductor.RCA Red Seal.3 LPs R9004963 Cassettes C900496

No ObligationTo Buy AnyFutureOfferings.

Also Available -On Cassettes

RCARED SEAL

This remarkable $3.98 offer is brought to you by The Interna-tional Preview Society-a highly selective music program that doesnot oblige you to buy at any time. These multi-record/cassettecollections, and many, many more superb choices, will continue tobe offered to you every four weeks in our exclusive Preview Maga-zine. Each mailing highlights a Main Selection...plus an impressivearray of alternate selections (most available on cassettes). And mostare well below suggested list price!

Regular Savings Of Up To 35% Off List PricesAs a Society member, you always enjoy up to 35% off suggested

list prices on all multi -sets. Plus, our Half -Price Bonus Plan meansthat for every regular member purchase you make, you may choose aBonus album for only half of the members' already -low club price!That amounts to savings of more than 55%! A postage and handlingcharge (plus applicable sales tax) is added to all shipments.

You Choose Only The Music You WantIf you'd like to receive the Main Selection, you need do

nothing. We'll send it automatically. But if you'd prefer an alternateselection or none at all, just mail back the Notification Card enclosedwith the offering by the specified date.

You'll always have at least 10 days to decide. Should you everhave less than 10 days you will receive full credit for returnedmerchandise.

3 Or More Records (2 Or More Cassettes)For Less Than The Price Of One!

Begin your membership by choosing any one of these sets forjust $3.98 plus a small postage and handling charge. (Sales tax addedfor New York, Indiana and Illinois residents.) Remember, eachmulti -set contains 3 or more records (2 or more cassettes). That's asavings of as much as $36.00... up to 90% off the suggested list price!

Send no money now. We want you to judge for yourself beforeyou decide to buy. If not delighted after ten days, return the set, andkeep the BONUS album, free of charge.

Highest Quality RecordingsAll selections are on RCA, Deutsche Grammophon, London

and Philips-the world-renowned labels most respected by musiclovers and performers alike.

FREE 10 -Day Audition PrivilegesYou'll always have 10 days to preview a selection at home-

absolutely free. And remember, unlike most other record clubs,there's never any obligation to buy.

So do take advantage of this marvelous value and mail in thecoupon today. You'll not only be enjoying a fantastic value with anyof these multi -record or cassette sets for only $3.98, you'll also bereserving the opportunity to order other great international releasesfrom the Society-always at impressive savings.

4,0k1D01.^/

THE COMPLETE GLENN MIL-LER Volumes 1, 2, and 3. Fea-tured hits from 1938-1940: InThe Mood, Sunrise Serenade,Star Dust, many more.RCA,6 LPs R9006943 Twin Cassettes C900694

BRAHMS The Four SymphoniesChicago Symphony Orchestra/James Levine, Conductor.RCA Red Seal,4 LPs R900647 4 Cassettes C900647

KENNY ROGBRS' GREATESTHITS Includes Lucille, LoveWill Turn You Around, Throughthe Years, Don't Fall in LoveWith a Dreamer and Share YourLove.Liberty,3 LPs R9006933 Cassettes C900693

rFree Home Audition RequestThe International Preview SocietyP.O. Box 91406 Indianapolis, IN 46291YES! Please send me, for my free audition, the multi -record or cassette set I have indicated by the numberbelow. I may return it after 10 days and owenothing...or keep it and pay only $3.98 plus apostage/handling charge (sales tax where applicable). Iwill also receive, approximately every four weeks, anoffering of the finest recordings. Of course I may cancelat any time.

Please print selection number here:

ORLP # Cassette #

Please send me my Free Bonus to keep without obligation on:0 LP (R132868) or 0 Cassette (CI32868)

Name

JAMES GALWAY/CLEO LAINESometimes When We Touch,Annie's Song, Carnival of Ven-ice, "Carmen" Fantasy, more.RCA Red Seal,3 LPs R9006963 Cassettes C900696

FREE BONUSTCHAIKOVSKY: 1812 Over-ture; BEETHOVEN: Well-ington's Victory. The Phila-delphia Orchestra/EugeneOrmandy, Conductor RCARed Seal.

C

Address

City State

Apt. No.

Zip

Only new members eligible. Offer limited to the connecting 48 states. Limit onemembership per household. NOTE: All applicant:vs arc subject to review. and we reser,:the right to reject alt application.

lon

PHA

"Panasonic's Composer is aseven -band equalizer andbooster, with spacing of thebands tailored to the car'sspecial needs."

switch for feeding dual or single sub-woofers.

Crossovers are also being built intoa growing number of amplifiers. Rock-ford-Fosgate's Power 6, MGT's Model2180, Linear Power's 2120, and threemodels from AUM Audio all have thisfeature.

More important new ground wasbroken by Visonik, whose AlphasonikA265 is probably the first Class -A mo-bile amp. It delivers 65 watts per chan-nel in stereo mode, 130 watts whenbridged for mono. Proton introducedtwo amplifiers with "Soft Clipping," likesister company NAD's, for more appar-

orrofon

NEW!

Every so often, a new development contributes sodecisively to performance, that it re -defines the state-of-the-art. Such a development has taken place in thelaboratories and listening rooms of Ortofon in Denmark.

A dramatic new way of evaluating performance has ledto a design concept called Ortophase® and a new Ortofonmoving coil cartridge. The MC2000 is the first cartridgeever designed that takes into account the critical role ofboth amplitude and phase response in the performance ofphono cartridges.

The result? We make only a modest claim for the newOrtofon MC2000.

Spectacular.

Write to us for complete information.See and hear the Ortophase-designed MC2000

at your Ortofon dealer now.

ent headroom. The Proton P240 hasswitchable Soft Clipping, and delivers50 watts per channel stereo, 100 wattswhen bridged to mono. The P222 hasfull-time Soft Clip, and delivers 22watts per channel.

Nakamichi introduced its first mobileamplifier, the PA -300, rated 70 wattsper channel. BGW offered 50 and 75watt/channel models with turn -on andturn-off delays to avoid thumps.

Nakamichi, Polk and Boston Acous-tics have all joined the ranks of mobilespeaker manufacturers. Nakamichi's isa three-way system on a unified mount-ing plate, with the asymmetrically -

sloped crossovers housed separately"to avoid sonic degradation due tomagnetic leakage." Boston's new 700is a two-way system on a plate; Polkoffers both a plate and separates.

Bose has updated their 1401 DirectReflecting system. The Series II ver-sion's new features include remote-

sensing turn -on switching (so the ac-tive equalizer and 4 x 25 -watt boostercan be concealed), circuit protection(which cuts out only the channels re-quiring it and restores sound once theproblem's gone), and features for easi-er installation. The stereo sound field ismuch like that of the Delco/GM/Bosesystem, giving a sense of stereothroughout the car. Also like that sys-tem, its stereo balance control affectsonly high frequencies, shifting the ap-parent stereo source without affectingoverall bass response or volume level.

The Sound Series 2000 from Philipsis wider than most rear -deck speakersystems. Each unit contains three driv-er modules, side by side: Two low -

frequency drivers with square 5 -inchflat polymer diaphragms (claimed toreach 20 Hz), plus tilt -up end units withdome tweeter and midrange drivers.

Getting back to in -dash units for asecond, Panasonic showed the CO -

S788, with a Daily Priority Station fea-ture which automatically switches topre -designated stations at presettimes so you won't miss favorite shows.Kenwood has broken Pioneer's recordfor the greatest number of station pre-selects: 24 (6 AM and 18 FM) to Pio-neer's 15 (5 AM and 10 FM). Bothshould mainly interest metropolitan -area listeners with eclectic tastes, orlong-distance travellers who regularlycover the same routes. A

122 Dupont Street, Plainview, New York 11803

Enter No. 20 on Reader Service Card 12 AUDIO/JUNE 1983

Tandber TIA-3012Innovations And

Specifications

Ali discreteselected components

Mcving-coil andmoving -magnet inputs

No electrolytic or ceramiccapacitors from phono in

to speaker out (cleanersound path)

Separate "listen/record"input selector switches

Minimum phase shiftfor superior imaging

High-speed design (1,000volt/micro-second rate)

Tone control circuits withvariable turnovers utilizing

1% calibrated resistors

Dedicated digital input(no capacitors through entire

circuit) capable of 20 -voltinput without overload

MOSFET output deviceswith no current orvoltage limiting

Toroidal powertransformer

Thermic servo -loop biasing

(maintainsstabilitywithout

affectingmusicalsignals)

Main/remotespeaker

switchingwith gold-

plated relays,heavy dutywiring, five -way

binding post

Unit constructed cf extrudedaluminum profiles for

strength and heat dissipation

100 watts RMS/channel,8 ohms, 20 Hz to 20 kHz,

less than 0.02 THO and IM

THETOGETHERSEPARATESTandberg introducesthe latest addition to itscontinuing 3000 Series ofcomponents, based on fiftyyears of engineering excel-lence and innovation.

The TIA-3012 integratedamplifier matches othercomponents in the Tandberg3000 Series in its dedicationto musical excellence, flexi-bility, quality, and value.

TANDBERG'Labriola CourtArmonk, New York 10504

(914) 273-9150

All these qualities areavailable in a series ofcomponents endowed withEuropean styling and simple,straightfo-ward operation.

The TIA-3012, in com-bination with either of ourhighly acclaimed 3000Series turners and a pairof rosewood side panels,forms the world's finestreceiver, with built-inflexibility without lossof investment.

Get together with theTIA-3012 at your localauthorized Tandberg dealer.

TIA-3012 Integrated Amplifier withTPT-3011 FM Tuner and Rosewood Side Panels

Enter No. 5 on Reader Service Card

TAPE GUIDEHERMAN BURSTEIN

Too Much High End tion of low distortion and flat response tracking problems, but you'll raise theQ. Some time ago I sent my tape on a record -playback basis; or in your frequency of any rumble, wow and flut-

deck to a company to have it tuned up case, perhaps with a slight high-fre- ter in your turntable, and of your arm/and indicated that I would like to see quency emphasis. cartridge resonance.-/.81the high end brighter. Now the highs If you insist on going ahead, do notseem unnaturally bright. I plan to have Disc -Dubbing at Half Speed change the 33/4 ips playback equaliza-a local shop readjust the deck. Please Q. I propose to play a digitally mas- tion; keep that standard. Since recordtell me what adjustments are involved tered phono disc at half speed (162/3 equalization is not standard, but is ad -so that I may speak intelligently with rpm), dub it onto my cassette deck at justed so that tapes made on that ma-the shop personnel.-Joseph Lacer- 1% ips, and play the tape at 33/4 ips. chine will have standard playbackenza, New Rochelle, N.Y. What changes are necessary in the characteristics, it is impossible to tell

A. To brighten the response of your phono playback and tape record you in advance specifically whatdeck, the company may have doneone or more of the following: (1) de-

equalization curves? Please provideme with new time constants.-Ralph

changes to make in that. As a starter,lower the frequency at which your 1%

creased the amount of bias used in Morgan, Wahiawa, Hawaii ips record-EQ treble boost begins.recording; (2) increased the treble A. From the tape side, I see no merit The RIAA phono playback curve hasboost employed in recording; (3) modi- in recording a cassette at half speed. maximum bass boost at 50 Hz (afied the playback equalization. Frequency problems in tape recording 3,180 -RS time constant), declining to -

Your deck should be aligned withrespect to the tape that you plan to use

are functions of recorded wave length-,if you halve both the frequency and the

wards 500 Hz (318 1.13), plus a treblecut commencing at 2,122 Hz (75 p,S).

in the future. First, playback equaliza- tape speed, this will not change. You If all frequencies are halved by playingtion should be adjusted for flat re- may even add a problem, because a disc at half speed, the turnover fre-sponse when playing a test tape. Then wow and flutter tend to be greater at quencies must also be halved, by dou-bias and recording equalization should 1% ips than at 33/4 ips. [On the phono bling the respective time constants tobe adjusted for the optimal combina- side, you may solve high -frequency 6,360, 636 and 150 µS.

THE IMF ELECTRONICS HPCM

IMFELECTRONICS

The IMF Electronics HPCM does not refer to some exotic new type of PulseCode Modulation, but designates our new High Performance Control Monitorloudspeaker. However, the allusion to PCM is entirely appropriate since digitalsound was a vital tool in the development of our HPCM loudspeaker.

Our design goal was a compact loudspeaker that could cope with theextended frequency response, high power -handling requirements, and widedynamic range of digital recording. In short, we wanted a compact version of ourIMF Electronics Reference Standard Professional Monitor Mark VII.

In fact, the HPCM uses the samel 13/4 inch x 8'/4 inch, high stiffness/lowmass, styrene/fibreglass woofer of the Mark VII, which affords true piston -action bass response, and a polymer -cone mid -range and chemical dome tweeter,both of which are damped with Ferro -fluid. These drivers are mounted in an in-

line configuration in a 26.8 inch H x 14.8 inch D x 11.6 inch W sealed enclosure.The enclosure is constructed of epoxy -impregnated heavy particle board. Thisextremely rigid and virtually inert materal along with heavy internal damping inthe enclosure, minimizes resonant colorations. The edges of the enclosure arebeveled to attenuate diffraction radiation. The in -line drivers and a third -ordercrossover network maintains phase integrity and affords precise and stablestereo imaging.

The minus 3 dB point of the HPCM is 37 Hz, and this provides exceptionalextended bass reproduction from the new CD digital discs now on the market. TheHPCM gives the smooth, clean, highly -detailed sound at high power levels thatcharacterizes the IMF Electronics Reference Standard Professional MonitorMark VII in a compact, no -compromise, cost effective system. Audition theremarkable IMF Electronics High Performance Control Monitor at selected dealers.Dealers are welcome to audition this and other new models from IMF Electronics at the SummerInternational Consumer Electronics Show, June 5th thru the 9th at the Beverly Suite Conrad -HiltonHotel. Chicago, Illinois.IMF ELECTRONICS,INC. 5226 State Street Saginaw, Michigan 48603 Tel (517) 790-2121 Telex 227461IMF ELECTRONICS LTD Richardson Street Buckinghamshire England HP11 2SB Tel (0494) 35576 Telex 83545

Enter No. 7 on Reader Service Card

Recording vs. Playback LevelsQ. When recording, I keep the

meter gives about the same reading inplayback as in recording. If your deck

tems should be readjusted with eachchange of program material.

peaks within -3 to 0 dB on the record contains such a control, a competentlevel meter. However, during playback technician can easily adjust it for the Dying Left Channelthe meter goes well into the red above tape of your choice. Q. When I turn on my cassette deck0 dB. Although no distortion is notice- and begin recording, everything isable during playback, I am concerned Reducing Only Noise? tine, but after about 45 minutes nothingabout the discrepancy between the Q. Can any noise -reducing unit at all works on the left channel. If I turnmeter readings in recording and in operate without losing a lot of off the power for a few minutes, every-playback.-Robert Rigsby, Richmond, sound?-August Yirsa, Brookfield, Ill. thing is okay again. What could be theVa. A. When using Dolby NR, there may problem?-Julio Poma, Bronx, N.Y.

A. As long as you hear no distortion,there appears to be nothing to worry

occasionally be some loss of the verylow frequencies say, below about 30

A. There may be a poor solder jointin the power supply to the left channel.

about. Some brands and types of tape Hz or so, according to some reports. As temperature varies according toare "hotter" than others; that is, theyhave a relatively high output for a given

When using Dolby or dbx NR, theremay be scme loss of the very high

whether the cassette deck is on or off,the joint may cause the connection to

input. The manufacturer of the cassette frequencies-say, above 15 kHz or so. be complete or incomplete. Anotherdeck cannot foresee which tape you But all this tends to vary among decks. possibility is a faulty switch or compo-will be using. If your tape has higher Dynamic -filter noise reducers (such nent which doesn't work properly whenthan average output, this can drive the as the Burwen or DNR systems), or it's warmed up. Al

meter into the red during playback. autocorrelators, can also cut high fre- If you have a problem or question on tapeYour meter might be miscalibrated quencies, depending on the setting of recording, write to Mr. Herman Burstein at

with respect to output readings. Some their sensitivity controls. For the best AUDIO, 1515 Broadway, New York, N.Y. 10036.

decks have an internal control for ad- compromise between noise reduction All letters are answered. Please enclose ajusting playback calibration so that the and high -frequency loss, these sys- stamped, self-addressed envelope.

Don't buy this tuner(Until you've heard others at twice the price.)

AD:CM MI

MAN Te

llllllllf

Sonic performance is the best reason for selecting anyaudio component. And when it comes to tuners,performance is relatively easy to evaluate.

A tuner either brings stations in clearly, or it doesn't.Especially the weak and distant stations that on sometuners come in noisily or not at all.

The music, of course, must sound dean andaccurate. And two (or more) tuners should beauditioned under identical conditions.

Then you want to compare features: such as thetuning system, programming flexibility, signal displaysand signal -enhancement controls.

Now, it's time to consider price. Our new GFT-2 isless than $250. But we suggest you ask your dealer tocompare it with other tuners priced up to $500 or more.

When you've done all that, you'll no longer needour advice. You'll know exactly which tuner to buy.

The new Adcom GFT-2.0 Quartz -referenced digitally -synthesized tuning

(accuracy: 0.000025%) 0 Dual -gate MOSFET RFamplifier Double -tuned quadrature detector ElStorage for seven AM and seven FM stationsEl 5 -stage LED signal -quality display 0 Manualand automatic scan.

For further information or the location of theADCOM dealer nearest you, please write to:

ADCOMR11 Elkins Road, East Brunswick, NJ 08816

Enter No. 8 on Reader Service Card

AUDIOCLINICJOSEPH GIOVANELLI

Unusual FM Reception ProblemQ. I have three high -quality FM tun-

ers. All perform well in my living roomand equally well in my basement, ex-cept that each produces a loud hisswhen receiving WNYC there. None ofthe tuners does this when receivingWNYC in the living room. All three tun-ers, when in use, are fed from thesame Yagi antenna. I tried a good dis-tribution preamplifier and a splitter.

The basement tuner sits on a shelfabove the top of the stone foundation.The only electrical devices reasonablynearby are a refrigerator and the fur-nace. I turned both of them off, but thehiss persisted. I've also installed a linefilter between the tuner and the walloutlet.

This is not a matter of incompletetuner limiting. The signal strength me-ters show that the levels are far abovethose required for total limiting. Thecondition is far worse when I use adistribution amplifier than when I use asimple splitter. And opening a knifeswitch in the portion of 300 -ohm lead-ingoing to the downstairs tuner, so thatthere is a 1/4 -inch gap, diminishes thehiss drastically-though not enough tomake acceptable recordings.-MortonN. Wekstein, Bronxville, N.Y.

A. The answer most likely lies in the300 -ohm lead-in you are using, or itsrouting to the basement. Perhaps it iswrapped around ductwork or pipes,fastened to a metal support column, orrun through ductwork. Such situationscause signal losses and reflections.

If such routing cannot be avoided, I

suggest that you use a 75 -ohm coaxialsystem. That should solve the problem.If signal losses are too great overallbecause of long cable runs, balun andsplitters, you will need to try a mast -mounted amplifier, not as a distributionamplifier but as a means of obtainingmore signal. This amplifier must, how-ever, have a better noise figure thanthe tuners have. If it does not have abetter noise figure, reception will againbe degraded, especially weak -signalreception. The coaxial system will ne-cessitate a complete rewiring of theinstallation, including the living room-even though reception in this room wasalways good.

Signal losses are not the only causeof hiss; multipath problems will alsocause it. Such added signal reflections

can be introduced by metal objects incontact with 300 -ohm lead-in as wellas those introduced into the antennafrom surrounding buildings and/or ter-rain.

Mono Speaker, Stereo AmpQ. What's the best way to connect a

single speaker to a stereo amplifier orreceiver without losing fidelity or dam-aging the equipment? Would the sameconnections be used for tube and sol-id-state gear?-Name withheld

A. With either type of amp, just con-nect your speaker to one channel'soutput terminals, rotate the balancecontrol all the way to that side, and useonly that channel's input. Set the modeswitch to stereo so no signal feeds theunused channel.

Third -Lug ThemeQ. I notice that all volume controls

have three terminal lugs. What is thepurpose of the third one?-RobertAdes, Los Angeles, Cal.

A. A volume control, or potentio-meter, consists of a resistor with fixedcontacts at each end and a slidingcontact between them. The signal isusually placed across the entire resis-tance of the volume control, and theoutput taken between the center termi-nal lug and one end.

Nickel -Cadmium vs.Alkaline Batteries

Q. I am considering buying a set ofrechargeable nickel -cadmium batter-ies to be used in a portable stereosystem, but a friend tells me they donot provide full power for nearly aslong a time as alkalines. I know nickel-cadmiums would pay for themselves intime, but since they supply 1.2 insteadof 1.5 volts, does this affect the playspeed? Which type is the betterchoice?-Steve Kuske, Goodhue, Minn.

A. It's true that nickel -cadmium bat-teries do not provide as much voltageinitially as alkaline batteries and thatthey won't supply their full voltage foras long as alkalines will. However, al-kaline cells will gradually fall off in volt-age over their lives, while nickel -cad-mium types will tend to maintain theiroperating voltage during much of theirdischarge cycle. Thus, if such batter-ies perform well for a specific applica-tion, their performance can be relied

on until the charge has been virtuallyexhausted.

Once alkaline cells have been ex-hausted, they must be discarded; noattempt should be made to rechargethem. The nickel -cadmium cells can berecharged a number of times. (In fact,they can be cycled a lot more oftenthan is true of dry, lead -acid cells.)

The lower voltage produced by abattery of nickel -cadmium cells will sel-dom affect the performance of theequipment in which they are installed.Even tape speed will not be adverselyaffected because of the recorder'sspeed -controlling system and becauseit probably was designed to allow forlow -battery operation.

If you plan to use a portable stereosystem over extended periods, youdefinitely should consider using re-chargeable cells. Keep two sets onhand, one under charge and the otherin use. Should you be away from pow-er lines and should one set of cells rundown, the recharged set will be imme-diately available.

Equipment CompatibilityQ. I once read an article which

spoke of "equipment compatibility,"claiming it would be unwise to pur-chase a music source capable of pro-ducing more signal than would drivethe amplifier to full output. My poweramplifier's manual states that "a 1 -voltsignal will drive each amplifier channelto its full output." I note that many tapedecks have outputs of 1.5 volts, 1.8volts, etc. Would they be incompatiblewith my present power amp?-SamuelJ. Neiditch, Highland, Cal.

A. If you're speaking of an integrat-ed amplifier with a volume control, noproblem; just turn down the volumecontrol. If you're using a power ampwith the tape deck (which is unusual),there will only be a problem if the amplacks an input level control and thedeck has no control for output level.Gross mismatches (such as a 10 -to -1mismatch) can cause problems withdistortion or noise, but not the sort ofmismatch you're discussing here. A

If you have a problem or question about audio,write to Mr. Joseph Giovanelli at AUDIO Maga-zine, 1515 Broadway, New York, N.Y. 10036. Allletters are answered. Please enclose a

stamped, self-addressed envelope.

16 AUDIO/JUNE 1983

DIGITAL/DYNAMIC RESERVE

SOUNDCRAFTSMEN DDR 1200DIGITAL/DYNAMIC RESERVETM STEREO POWER AMPLIFIERPOWER! Lots of clean, pure power...the ONE ESSENTIAL REQUIRE-MENT for the reproduction of the magnificent new Digital Recordings.With 30d8 greater dynamic range, the new Digital Audio Discs demandup to ONE THOUSAND TOMES more power than conventionalrecords, even at moderate listening levels!The DDR 1200 can deliver over ONE THOUSAND WATTS of totalpower (see specifications) to reproduce digital dynamic musical"peaks" with a degree of sonic effortlessness unheard-of in conven-tional amplifiers.And, unlike the "lightweights:' the DDR 1200 will produce its ratedpower hour after hour without overheating or break own!Need even more power for low -efficiency loudspeakers or multi -speaker installations? The DDR 1200 converts to a 750 -watt monoamplifier with the flip of a switch!

CONVENTIONAL RECORDOscilloscope photo showsmusic playing at normal lis-tening level. Only 11 watt ofpower is required for averagelevel, but 16 watts areneeded to produce "peaks."

FOR THE EIGHTIES...

'011114:

101.1101

6.0.0'atria& Haws

(AOE V7i)

The DDR 1200 is the world's only stereo amplifier capable of analyz-ing the other components in the music system! Its 100 -LED FrequencySpectrum Display lets you see, in Real Time, exactly how your phonocartridge, tape deck and other program sources are performing. Aspecially -recorded Frequency Spectrum Analysis 12" LP Test Recordis included with the DDR 1200.If Digital Audio is in your future, a Soundcraftsmen amplifier should bein your present!Soundcraftsmen DDR 1200 $1199 Other models from $649.

SPECIFICATIONS: 250wat% per channel 0 8 ohms, minimum FMS, with no more than t9%total harmonic distortion, 20Hz to 20kHz. 375 watts pei channel @ 4 ohms, 750 watts @ 8ohms mono mode. 1200 watts total dynamic reserve power.

The World's Finest Stereo ComponentsAre Still...MADE ON U.S.A.!

FREE!FREE! S19.95 Ea EVALUATION IUT, including12" 'LP Frequency Spectrum Anal-ysis Test Record, 2 sets of Komputcne Charts. Connector Cable, completeinstructions. JUST WRITE TO US OR CIRCLE Reader Service Card Oltsend Free Special Otter Details and 18 -page full lips color brochure featuring"WHYS AND HOWS OF EQUALIZATION.'

DIGITAL AUDIO DISCOscilloscope photo showssame music playing at samenormal listening level. Againonly 1 watt is required foraverage level, but 500 wattsare needed to produce the..."dgital/dynamic peaks"'without distortion!

2200 So. Ritchey, Santa Aura. California 92705, U S.A./Telephone (714) 556-6191/U.S. Telex/TWX 910 595 2524 International Telex: 910 595 2524/Answer-back Code SNDCRFTSWt SNA

Enter No. 30 on Reader Service Card

NT

ER

O,

TH

E U

RB

AN

GO

RIL

LA.

Beh

old:

a r

ugge

d of

f -ro

ad4

-whe

el d

rive

beas

t tha

t act

sci

viliz

ed o

n th

e ro

ad.

Shi

ll ou

r ne

w M

onte

ro in

to2

-whe

el d

rive

and

it cr

uise

sar

ound

tow

n lik

e a

spor

ty c

ar.

Ws

room

y, s

eats

four

com

fort

ably

.A

nd it

's lo

aded

with

cre

atur

eco

mfo

rts.

But

mor

e ab

out t

he b

eaut

yla

ter.

Firs

t, le

t's e

xam

ine

the

beas

t.

WH

ER

E D

OE

S A

GO

RIL

LA G

O?

JUS

T A

BO

UT

AN

YW

HE

RE

ITW

AN

TS

TO

.

Mud

, sno

w, h

ills

or g

ullie

s. Y

ouna

me

it, th

e M

onte

ro ta

mes

it.

In it

s 4

-whe

el d

rive

mod

e,th

ere'

s a

low

gea

r th

at w

ill h

aul

you

up a

hill

. And

a h

igh

gear

for

quic

k an

d ni

mbl

e go

ing

in s

ticky

snow

or

loos

e di

rt.

Sup

er lo

w g

earin

g pr

ovid

esM

onte

ro w

ith s

uper

clim

bing

abili

ty. A

nd it

s w

ide

trac

k, a

llow

sit

to tr

aver

se s

teep

terr

ain.

Tow

n or

cou

ntry

, thi

s an

imal

goes

just

abo

ut a

nyw

here

.

YO

U N

EE

D A

GO

RIL

LAB

EC

AU

SE

IT'S

A J

UN

GLE

OU

T T

HE

RE

.

Fro

m s

teel

top

to s

olid

box

-ty

pe fr

ame

and

prot

ectiv

est

eel s

kid

plat

es, t

he M

onte

rois

wel

l bui

lt, li

ke a

gor

illa.

Gut

sy 2

.6 li

ter,

105

hor

se-

pow

er M

CA

-Je

t eng

ine

is th

ebi

gges

t 4 -

cylin

der

pow

er -

plan

t we

offe

r. S

o it

won

'tba

ck d

own

in th

e ba

ckw

oods

.Y

et, i

t's s

moo

th a

nd q

uiet

inth

e co

ncre

te ju

ngle

s. B

ecau

seun

ique

Dua

l Eng

ine

Sta

biliz

ers

redu

ce v

ibra

tions

.B

eefy

inde

pend

ent f

ront

sus

-pe

nsio

n w

ith to

rsio

n ba

rs s

moo

ths

out u

nbea

ten

path

s. O

r ro

ads

that

have

gon

e to

pot

hole

s.A

nd th

e po

wer

-as

sist

ed fr

ont

disc

s w

ill s

top

a go

rilla

in it

s tr

acks

.

GO

T T

HIN

GS

TO

CA

RR

Y?

GE

T A

GO

RIL

LA.

Fol

d do

wn

the

rear

sea

t and

the

Mon

tero

bec

omes

a b

east

of b

urde

n. S

port

y fr

ont b

ucke

tse

ats

recl

ine,

and

the

pass

enge

rse

at ti

lts fo

rwar

d fo

r ea

sy r

ear

seat

acc

ess.

Car

go ti

e -d

owns

com

e st

anda

rd, t

o se

cure

ever

ythi

ng y

ou n

eed

to g

o on

a

cam

ping

trip

. Or

haul

eve

ryth

ing

back

from

a s

hopp

ing

spre

e.

EV

ER

Y G

IRL

NE

ED

SA

GO

RIL

LA.

Alth

ough

it m

anha

ndle

s m

ost

anyt

hing

, the

Mon

tero

is e

asily

wom

an h

andl

ed, t

hank

s to

var

i-ab

le a

ssis

t pow

er s

teer

ing.

Eas

y to

see

out

of.

Tha

nks

to a

hig

h to

p an

d tin

ted

glas

s.E

asy

to s

hift.

Tha

nks

to a

spor

ty 5

-sp

eed

man

ual o

ver-

driv

e tr

ansm

issi

on.

Eas

y to

rid

e in

. Tha

nks

to a

driv

er's

sea

t tha

t "flo

ats"

on

ash

ock

abso

rber

.A

nd it

's e

asy

to lo

ok a

t. T

hank

sto

a n

ifty

two

tone

pai

nt jo

ban

d 15

-in

ch s

tylis

h sp

oke

-typ

ew

heel

s w

ith a

ll te

rrai

n ra

dial

tire

s.A

nd it

's a

ll st

anda

rd. T

hank

sto

Mits

ubis

hi.

CM

UZ

ED

INS

TR

UM

EN

TA

TIO

N.

ALL

TH

ES

E S

TA

ND

AR

D F

EA

TU

RE

SM

AK

E IT

QU

ITE

AN

AN

IMA

L.

Eve

ry g

orill

a co

mes

load

edw

ith s

tand

ard

feat

ures

like

: 2.6

liter

, 105

hor

sepo

wer

MC

A -

Jet

engi

ne.

5 -s

peed

man

ual o

verd

rive

tran

smis

sion

.In

depe

nden

t fro

nt s

uspe

nsio

nw

ith to

rsio

n ba

rs.

Var

iabl

e as

sist

pow

er s

teer

ing.

Man

ual f

ree

-whe

elin

g hu

bs.

Pro

tect

ive

skid

pla

tes.

Driv

er's

sus

pens

ion

seat

.15

" st

yled

spo

ke -

type

whe

els

with

all

terr

ain

radi

al ti

res.

4 -p

asse

nger

sea

ting

plus

big

carg

o ar

ea.

Plu

s do

zens

mor

e st

anda

rdfe

atur

es fo

r on

ly $

9,22

9*Y

OU

CA

N E

VE

N B

EE

F U

PA

GO

RIL

LA.

We

offe

r th

e S

port

Opt

ion

Gro

up w

ith li

mite

d sl

ip d

iffer

entia

l,au

tom

atic

free

-w

heel

ing

hubs

,he

adla

mp

was

hers

, rea

r w

iper

/w

ashe

r, a

ccen

t str

ipe

and

anA

M/F

M/M

PX

cas

sette

rad

io w

ithfo

ur s

peak

ers.

Tha

t's a

lot o

f gor

illa

for

only

$72

1* m

ore.

You

mig

htsa

y yo

u'll

go a

pe o

ver

it.F

or y

our

near

est d

eale

r, c

all

(800

) 44

7-47

00.

'Man

ufac

ture

r's s

ugge

sted

ret

ail p

rice.

Act

ual

pric

es s

et b

y de

aler

s. T

axes

, lic

ense

, fre

ight

, opt

ions

and

othe

r de

aler

cha

rges

ext

ra. P

rices

may

cha

nge

with

out n

otic

e.Li

mite

d av

aila

bilit

y in

Cal

iforn

ia u

ntil

Sep

tem

ber,

198

3.

AC

HIE

VE

MIT

SU

BIS

HI

MO

NT

ER

O. I

T T

AK

ES

YO

U W

HE

RE

YO

U'V

EN

EV

ER

BE

EN

BE

FO

RE

.M

ITS

UB

ISH

IM

OT

OR

S

Mer

robe

ni M

otor

Sor

es o

f Am

en=

Inc

1483

Abe

rcro

mbi

e &

Fitc

h is

c R

egis

tere

d T

rode

nork

Ent

er N

o. 3

1 on

Rea

der

Ser

vice

Car

d

ROCK/POP RECORDINGSMICHAEL TEARSONJON & SALLY TIVEN

ROWLAND ON RYEToo -Rye -Ay: Dexys Midnight RunnersPolygram SRM 1-4069, $8.98.

Sound: B Performance: B+

Too -Rye -Ay is one of the most eclec-tic records to receive the big radio andMTV push. Although it.may not be whatyou'd term revolutionary music-reac-tionary might be more applicable-it'sa certainty that nothing along the samelines is being recorded these days.What it comes down to is Kevin Row-land, a Celtic lad stylistically in debt tothe Martin Scorcese school of ethnicsensibility, drawing heavily from '60ssoul records and his own traditionalIrish music. He comes up with asound, devoid of electric guitars, driv-en by horns, accordions, banjos andfiddles that's unlike the music usuallyassociated with these instruments.Rowland also has a peculiar voicethat's rather high and clear, whereasthe singers he seems hooked on aremidrangey and gruff. This unlikelycombination of roots, instrumentationand voicings produces a fairly distinc-

tive sound which has actually gottenonto many radio stations via the infec-tious hook of "Come On Eileen"-amajor accomplishment these days,when every record heard on the FMdial seems to resemble Journey's.

Of course, part of this success isdue to the mild resemblance KevinRowland's music bears to early Spring-steen (The Wild, Innocent, & E -Streetperiod), and how certain people in ra-dio are paranoid about missing out onthe next Bruce. The similarities are onlysuperficial, heightened by the fact thateverything else around sounds like itwas manufactured at the same heavy-metal plant.

The production on Too -Rye -Ay isminimal; none of the instruments areenchanced by the recording, and thedrums are thin. But for an Americandebut, the record is fairly interestingand distinctive. Only time will tellwhether Rowland becomes an artistwith major impact or, like GrahamParker, just another singer/songwriterin the shadow of the Asbury Park.

Jon & Sally Tiven

On My Own Two Feet: Paul BarrereMirage/Atlantic 90070-1, $8.98.

Sound: C Performance: B -

Paul Barrere's songwriting blos-somed under Lowell George's shadowin Little Feat as Paul gradually becamean adept songsmith with an uncom-monly bent wit. Here he emerges ashis own man but is still heir apparent tothe Little Feat style, if not its sound. Thesimilarities are unavoidable eventhough Barrere employs biggersounds than the old group did. Theplaying throughout is excellent, andseveral members of The Dixie Dregsfigure prominently. The songs arecheery fun if light, but Jeff Glixman'spedestrian production might act as adampener in that respect. For all theobvious energy that has gone into OnMy Own Two Feet, the raw sound isremarkably lifeless.

Little Feat fans and fetishists aresure to like Paul Barrere's long-awaitedsolo album, probably a lot.

Michael Tearson

In Cold Blood: Johnny ThundersNew Rose NR350, two discs, $10.98.Too Much Junkie Business: JohnnyThundersROIR A118, cassette, $7.98 (611Broadway, New York, N.Y. 10012).

Sound: B - Performance: B

Johnny Thunders is one of the moreamusing cult figures in rock, if only dueto his deliberate attempt to remain asemi -obscure legend: No one couldaccidentally make records (and tapes)this trashy and yet display so muchtalent. All his records are character -[zed by inexcusable playing, whinysinging, and a lack of any real produc-tion. Despite all this, Thunders' song -writing talent and semi -lovable person-ality shine through. The guy certainlyknows how to handicap himself.

He hasn't been able to get a realrecord contract, so these are releasedthrough a small French label (NewRose) and an American cassette -onlycompany that caters to the tastes ofNew Wave refugees. Many of the samesongs are featured on both. Althoughthe French issue is the more logical-two records, one studio and one live

20 AUDIO/JUNE 1983

HEAR ALL OF THE MUSKAND NONE OF THE TAPE...

Iy()/ 7u 1 11>

SWITCH TOBASF CHROME

AUDIO TAPE

THE WORLD'S QUIETEST TAPEIf you won't settle for anything less than pure music, acceptnothing less than BASF Pure Chrome audio tape. Unlike ferricoxide tapes, BASF Pure Chrome is made of perfectly shapedchromium dioxide particles. And that exclusEve Chrome formula-tion delivers the lowest background noise of any tape in the world,as well as outstanding sensitivity in the critical high frequencyrange. And this extraordinary tape is designed especially for theType II Chrome Bias position. So make sure you're hearing all ofthe music and none of the tape. Makethe switch today to the world's quietest 'ASFtape. BASF Chrome.

Chrome Audio & Video Tapes

from Cambridge, Mass.-the cassettehas a charm all its own. Too MuchJunkie Businesss features 15 songswith narration in between by JohnnyThunders. Two of the best studiotracks here didn't make it onto In ColdBlood ("Who Do Voodoo" and "King ofthe Gypsies"). The live tracks on both

"Johnny Thunders is anex- New York Doll who seemsto be finding out the hardway that it takes morethan heart to get across."

packages feature less than greatsound. True fans should get The Heart-breakers' Live in London album re-corded seven years ago but only re-cently made available. The cassetteincludes more vintage Heartbreakermaterial, while .the New Rose editionduplicates cuts (who needs a studio

The New CD SeriesControlled Directionality Speakers

From the excited engineersat Electro-Voice

EV engineers are very excited about our newCD Series speakers and the new technologythey represent.

Years ago we solved the key problems offrequency response and optimized low -frequency performance of small enclosures.EV has been manufacturing high qualityspeakers for decades offering both thesuperior engineering and high efficiencythat have been EV bywords.

But actual listener position always deter-mined the quality of sound because speakercomponent dispersion angles varied some-what with frequency.

Always, that is, until now.The new CD Series speakers from Electro-

Voice feature wide dispersion (100°) of fullfrequency sound! We call this advancement"Controlled Directionality': Now, every seatcan be "the best seat in the house':

The CD Series offers you the best whetheryou're a technical expert or a sophisticatedlistener seeking no -apologies reproduction.

Send for the free packet of detailed informa-tion about the two models in the CD Seriesand soon you'll be just as excited as we are!

Please write to: Thomas W. Zoss, Electro-Voice, Inc., 600 Cecil Street, Buchanan, MI49107.

CD Series type 35 and 351 specifications

Axial FrequencyResponse:

Sound Pressure Level:Suggested Amplifier

Power Ratings:

Time Coherency:

Dispersion AngleAcoustic Coverage

Zone: 'Held to 100° by Direktor'geometry within the critical500-12,000 Hz range

Crossover Frequencies: 1500 and 8000 HzImpedance: Nominal: 6 ohms

Minimum: 5 ohms

Essentially flat from40-30,000 Hz92dB 1 watt, 1 meter, anechoic

Minimum: 3 wattsTypical: 10-15 wattsMaximum: 400 wattsWithin .15 milliseconds

Electro:Voicd

Johnny Thunders

and a live version of "Green Onions"?).But those who are addicted to vinyl, asopposed to magnetic tape, will proba-bly opt for In Cold Blood despite thisdisclaimer.

If Johnny Thunders surrounded him-self with musicians of at least a margin-ally talented calibre, he might be ableto get away with this kind of perfor-mance and becoMe, say, the next PattiSmith. On his So Alone album (wherehe was aided and abetted by Sex Pis-tols, The Only Ones, and a Pretender),the presentation was far more coherentthan that found here. This ex -New YorkDoll seems to be finding out the hardway that it takes more than heart andsoul to get across to the public. Unfor-tunately, his recordings show him ashis own worst enemy-but in somekooky way, they're still all right. Youfigure it out. Jon & Sally Tiven

Love Over and Over: Kate and AnnaMcGarriglePolydor 810-042-1 Y-1, $8.98.

Sound: C - Performance: A

Love Over and Over is a lovely andvery satisfying album by the CanadianMcGarrigle sisters. They write genuinesongs of the heart that are emotionaland blessed with glowing warmth,grace, and wit.

In addition to their new songs aretwo somewhat older, glorious ones.Kate's "The Work Song" was a high-light of Maria Muldaur's 1973 solo de-but album. Its melodic ties to StephenFoster are emphasized here in a beau-tiful performance. Anna has translated(loosely) Bob Seger's "You'll Accom-pany Me" into French and dressed itup with fiddle and accordion.

The arranging throughout the albumis excellent, laced with gentle sur-prises. It is too bad the album is

Enter No. 18 on Reader Service Card22 AUDIO/JUNE 1983

N a k a m i c h

Power Amphlre,

TD -1200Mot Ile TunerCassette Deck

Take Nakamichi SoundWith You

Imagine listening to music in your car with the same fidelityyou enjoy at home! Impossible? No longer! NakamichiSound has taken to the road!

Only the acknowledged leader in home -stereo equipmentcould remarkable Nakamichi Mobile Sound Sys-tem-a system so unique, so revolutionary, that it defies comparison!Imagine auto equipment that not only rivals the finest home compo-nentry but outperforms most of it!

Imagine an auto -reversing cassette deck that reproduces equally well inboth directions-one that reaches beyond the audio spectrum to 22kHz! Imagine a cassette player that senses when the music has stoppedand fast winds to the end of side for quick reversal.

Imagine NAAC-the unique Nakamichi Auto Azimuth Correction system that, fromthe program material itself, automatically aligns the playback head to each tape toextract the last iota of performance. Imagine a car deck that has less flutter than ahome deck-one with a choice of equalization and Dolby* B- or C -type noise re-duction-one that achieves 70 -dB dynamic range!

Imagine a mobile power amp that delivers 70 watts per channel with less distor-tion than a home amplifier-a mobile quartz-PLL synthesized FM/AM tuner withthe signal -pulling power, selectivity, and immunity to multipa:h that brings homereception into your car! And, imagine a three-way mobile loudspeaker system thatrecreates a sound field of such breadth and clarity that you think you're in your lis-tening room!

Imagine no more! The system you've been dreaming about is waiting for you atyour Nakamichi Mobile Sound System dealer. Take your favorite cassettes alongand ask for a demonstration. Or, write for more information to Nakamichi U.S.A.Corporation, 1101 Colorado Avenue, Santa Monica, CA 90401.'TM Dolby Laboratories Licensing Corporation

raNakamichi

1 400Way Mob//e

SpeakerSystem

Investment Protection:Engraved on your key is a

unique personal code that"unlocks" your system

and brings it to life.Without the code,

your system isabsolutely

inoperableand of no

use toanyone.

Enter No. 15 on Reader Service Card

BLESSED

CARVER M-I.5tMAGNETIC FIELD POWER

AMPLIFIER

"...the equal of any power amplifier intransparency, focus and smoothnessand, of course, far ahead of any otherwe tested in sheer gut -shaking powerand dynamic range. We especiallyenjoy hearing spatial detail, instru-mental definition and completelynatural dynamics on familiar recordsto a degree we did not know wasextractable from the grooves whenwe listened through lesser amplifiers.At this level of sonic performance,the astoundingly small size and cooloperation of the M -1.5t become theicing on the cake, rather than themain attraction."

Peter Aczel The Audio CriticWinter 1982-83

Recent advances in analog and digitaldisc recording technology have madesource material with full, real -lifedynamic range a reality.

But, if you want to hear this improve-ment in sound quality, your highfidelity system must include an ampli-fier fully capable of reproducing all ofthe music...the CARVER M -1.5tMagnetic Field Power Amplifier.

350 watts rms/chan. into 8 ohms,20-20 kHz with less than 0.1% THD.And most importantly, the rating thatis musically significant: 600 watts/chan. Long -Time -Period ReservePower with 750 watts/chan. DynamicHeadroom. Weight: 16 lbs.

The CARVER M-1.5t...carefully andspecifically designed for those whoseek highest fidelity and musical purity.

For more information write to:

Powerful Musical Accurate

P.O. Box 664 14304 N.E. 193rd Pl.Woodinville, WA 98072

pressed so badly that it very nearlyundoes all the fine efforts. Surfacenoise is prevalent and so are distortedvoices, but often delicate percussionand piano parts are undamaged.Something has gone very wrong heretechnically. I should note that I

checked three copies to ascertain thatthe problems were not isolated.

Still, despite the technical problems,Love Over and Over is a highly recom-mended album of sensitive and maturesongs. Michael Tearson

Another Page: Christopher CrossWarner Bros. 23757-1, $8.98.

Sound: B+ Performance: B+

As thoroughly as Christopher Crossfirst album saturated America, it's hardto believe this is just his second re-cord. With this state -of -the -genre L.A.pop album of mellow rocking sounds,he proves he is not just another one-shot wonder.

Production and sonic values aresqueaky clean and clear on the QuiexII vinyl review copies. Musicianship isof the usual high level of the L.A. studioWho's Who playing on the album.

Cross is a class act. His songs havelovely, full melodies that grow on you.Another Page makes excellent, non-irritating listening. Michael Tearson

No Man's Land: Lene LovichStiff/Epic Are 38399.Sound: B Performance: B

Lene Lovich and her partner LesChappell have kept something of a lowprofile since the last Lovich album in1980 and the last EP in '81. With NoMan's Land, she retains her squeakygypsy -queen vocal persona plus theBalkan rhythms and melodic ideas thatmake her best work, like "Lucky Num-ber" or "New Toy," so diverting.

Lene's peculiar voice can start towear on some ears by the end of analbum, but when the songs are strongon their own, as they are for much ofNo Man's Land, everything is peachy.New standouts include "Blue Hotel,""Maria" and "Sister Video." The leadtrack, "It's You, Only You (MeinSchmerz)," tries hard but in the end isjust too precious.

Lene Lovich

For an album recorded in no fewerthan seven studios, Lene and Les havegotten a nice consistent sheen on theproduction. Their music's quirks pro-vide it its abundant character. As youget used to the territory, No Man'sLand emerges as a fine, warm albumthat gets better and better.

Michael Tearson

Win This Record : David Lindley & ElRayo-XElectra Asylum 9 60178-1, $8.98.Sound: B Performance: A

Win This Record sounds like a musi-cal Siamese twin to Lindley's first soloalbum, E/ Rayo-X, one of the highlightsof 1981's releases. Not that this is asecond -string batch of Lindley magic,mind you, but an identical soundingstyle which differs from its predecessoronly in the increased percentage offeatured guitar work by the other play-er, Bernie Larsen, and the larger con-tribution of originals by the group'smastermind.

Lindley's guitar trademarks are allover these tracks-soaring lap steelparts, Mexican -flavored figures, per-cussive finger -picking rhythm parts,and major -scale solos. Exceptional incomposition and execution, his instru-mental sections always manage totake off. He's simply one of the bestguitarists, for both originality and sheerchops, now on vinyl.

As for the band, whose other coremembers are Jorge Calderon on bassand Ian Wallace on drums, it seems tobe of one musical mind, judging fromthe homogenous body of outstandingtracks. Most of the tunes are calypsoor reggae in feel as the band leaderseems to be heavily into Caribbeanand Mexican stylings. There's a con-siderable amount of unison and har-mony singing, and "Let the Girl GoHome" and "Brother John" suggest

24 AUDIO/JUNE 1983

TH

E N

EW

AIW

A A

D -F990

3 -HE

AD

CA

SSET

TE

DE

CK

:PE

RFO

RM

AN

CE

RE

AD

Y FO

RT

HE

DIG

ITA

L A

GE

.A

t Aiw

a, we believe being

the best means taking the

lead, not following. T

hat'sw

hy our engineers developedthe A

D -F000: the first fully

automated cassette deck de-

signed to meet the dem

andsof the com

pact digital disc.20.21000H

z FLA

TFR

EQ

UE

NC

Y R

ESPO

NSE

!L

isten to the AD

-F990 andyou'll be stunned. D

olby HX

Professional and Aiw

a's ex-clusive am

orphous combi-

nation head have extendedperform

ance parameters so

far that the AD

-F990 canfaithfully reproduce digitallyrecorded program

s without

comprom

ise...or effort.A

TR

IUM

PH IN

HU

MA

NE

NG

INE

ER

ING

To perfectly integrate m

anand m

achine, the Aiw

a AD

-F990 presents its controls ona unique "keyboard." T

hat'snew

! So is our Auto R

ecordL

evel Control, A

uto NR

De-

tector, Auto D

emagnetizing,

Auto T

ape Selector, Digital

Tim

e Rem

aining Display that

shows all tape operation

modes, and a flourescent

display fui all function&T

he Aiw

a AD

-F990: thetop of onr new

line of "digital -ready" cassette decks. T

hesound of the future, today.

Virtuoso

a.

110111111.1111,44

-4

r300

*34§,11614**,16,

A IW

As, M

PLY

AD

VA

NC

ED

En 3988

___A

IWA

Nom

I.

Mg 1

4.111lqnt

t

-la a $iiii

4

68

"a"

getnle tau

SYSTO

MIEN R.c KR

4.-4,4Kei

-.TA

PE

Fix,0

'DATA SYSTEM

IMO NR DETECTOR

RADIO RECORDING

LEVEL

ccPuTLE

VE

L

MN .

MAX

R E

C B

AL

AN

ce

MIR

%LER .

Rine4T

Erato N

u 22 uf N R

eadat 3,,A

IWA

AM

ER

ICA

INC

., 35 Oxford D

rive, Moonachie, N

ew Jersey 07074. In C

anada, Shriro (Canada) L

td.

"David Lindley is growingas a songwriter and as amusical force who canstand on his own two feet."

that Lindley loves a sing -along. Thelatter tune gets a four -star treatmentwhose end product is a masterpiece ofsimplicity. The arrangement of guitarand percussion instrumentals makesfor development within the song whichis perfectly suited to Lindley's adenoi-dal voice. Although it's hard to choose

favorites on an album that's as consis-tently uplifting as this, "Talk to the Law-yer," penned by Lindley, doesn'tsound far from what pop radio mightchoose as a single.

More than anything else, Win ThisRecord proves that Lindley's first re-cord wasn't a fluke. Although Win

THE TURNTABLETHAT BEAT ME

COMPACT DECIn a recent test done by Popular Hi-Fi, all four review-ers chose the Linn Sondek LP12 Turntable over theCompact Digital Disc.

"The Compact Disc Player sounds impressive at first,probably due to its relative absence of surface noisebut once the music starts there is something whichtells you immediately that it is wrong."-Chris Thomas

"All the key musical elements were there, but the subtlenuances of the music - delicate cymbal playing, intri-cate guitar work and so on - were missing whichmade the overall presentation of the music less con-vincing and involving than that provided by the ana-logue front end." - Simon Davies

"... although it was better than we had anticipated, itstill was far behind our reference Linn/Ittok/Asak Tcombination in pure sound quality." - Chris Frankland

"In my view it still has some way to go before it is asgood as the best analogue disc playing systems." -Jonathan Kettle

For a complete reprint of the review, and other information on theturntable that beat the compact disc, circle the reader service num-ber listed below.

LINNSON DEK

For further information contact:AUDIOPHILE SYSTEMS LTD., 6842 HAWTHORN PARK DR., INDIANAPOLIS. INDIANA USA 46220ALDBURN ELECTRONICS LTD., 50 ROLARK DR., SCARBOROUGH, ONTARIO, CANADA M1R 4G2

doesn't quite surpass it, this albumdoes demonstrate that the man bestknown as Jackson Browne's guitarplayer is now growing as a songwriterand musical force who can stand onhis own two feet. Jon & Sally Tiven

Quartet: UltravoxChrysalis B6V, digitally mastered,$6.98.

Sound: A - Performance: A -

Chrysalis inaugurates its new distri-bution deal with CBS with this lovelynew album from Ultravox at a speciallow price. The group's cool, archly ro-mantic music has something of an up-dated Moody Blues feel minus the con-stant philosophizing and most of thepomposity.

Ultravox

A big part of the story here is thewonderful production by George Mar-tin with Geoff Emerick as engineer.Both, of course, haVe done lots of high-ly distinguished work, topped by theirefforts on many of The Beatles records.More recently Emerick produced ElvisCostello's Imperial Bedroom. Theirwork here is of equal distinction. Quar-tet has brilliant sound with uncommonclarity and separation.

Ultravox is a major group in much ofthe world outside of North America.They are truly a class and a classy actwhich deserves a serious listen here,too. Their smooth, modern musicwears well through repeated play.

Michael Tearson

Enter No. 37 on Reader Service Card 26 AUDIO/JUNE 1983

p1U0 93!AJ8S Japeou uo lZ 'oN Jaw]

.VIZ-asludins e lo; u! al,noA

'Z1%8 OD'uadsv 'E-9 xog .0 -d ;seg oz9 'dnoi9 Asau

39S1103V :o1 amjelalq ino ioj aittm iO noA isaleauJaleap aqj jo atueu aqi so; else pue V0t-szg-008 'laqtunuaaJj-lloi Jno Ilea isn! 'Imo op oislea JnoA ol al!l spunos

peplaqj jeqm Jeaq 4uem ii,noA is.nj s`Ru!qi(aiqulleite s! asea 2u!Allea lepads v)-alqepod Alan Jo snona!dsuoaut aq

mot's sialeads alaqm Allepadsa-uompuoa atuoq Atte inoqeisn! I0j

petaatu Jap!suoa mou lle3 noAsuoqq!uni asaqi anetj lou swop

iapow mau ata -SU1001 az!s-jsapotuui pue sianal 2uplaisq aleJapoul

asn .10j Alliptutid papuatutuoaat gemtualsAs peps', leu!Vtio atalu!od luepodun Ise! auo

siantip Souanbaq-Aq puep!tu alp jo uoquiAjuoa pa011e-aseqd 'uoqaeljj!p-mol

lepads atp Aq pana!tpu s! Vut2etu oaJais aspald-Ja2Jui savvy ainsopua

ue pue 's,petaato jo ley aa!m; Jajoom el1101j jaadxap,noA aaueuuopad Aauanbaq-moi :linsaJ pua atu,

Auel 2upelado pawAsap s,Jajoom atp u!to!finaaueuuojlad tununido so j pax:wow Allea!uolpap ale

uo!sinaxa auoa aq; pue leAs indu! atu, Jaindwe Str!uot)-!puoa-wAs paJeaqs!tidos e ql!fin 'paJamod-jias s! Jajoohtqau!-w9 ata -men Apaqsnoae 1p i u (mem) uu! ameiap!suoapue Asap poo2jo xiw e top% s!qi paqsqduioaae peps',

lauuetp Lima Jo; sjeqj puv lead spem osz 'sno-nuquoa slim% sz s!2uqpueq Jamod

iflP £ -T- 000'R VZ tuoij spuaixaasuodsai buanbaq 'aldtuexa Jod

-VuqsaJalu! puv Jueau!AsAnew aauetuJojJad duos J!aql

jo suo!suatulla 2unjs!uoise aqjazIs lealsAqd i!aqj so; qantu osts x 9/SS x zAg) xoq aoqs auo uetil

ssal si almajus -laeg (g x "ACT x gig)saxoq aoqs omi jo az!s aqi jnoqe Si Jajoomqns ata

saaa!d aaJtjj sji do ppenoA uatim uana 'Hews A.I3A si pepiatp 'aas uea noA sv

stualsAs aoneads Jo PiojuogRadulo)aim spiall

AUDIOPHILE RECORDINGS

ONE WONDERFUL WURLITZER

The Road to Wichita: Billy NalleWTO 1959, $9.00 (Billy Nalle Music,400 West Central Ave. 2205, Wichita,Kans. 67203).

The time was, many years ago, whentheater -organ records were the ones totest your system with; they were theaudiophile albums of the late '50s andearly '60s. There were three prominentorganists in those days: Billy Nalle,with his jazz approach to the instru-ment; George Wright, with his pop,somewhat gimmicked approach, andAshley Miller, who played more in themain -line tradition.

In the last decade, the theater organhas waned in popularity, mainly be-cause of shifts in the general taste, butthe instrument maintains a cult follow-ing. One of the finest examples of atheater organ was the Wurlitzer origi-nally installed in the New York Para-mount Theater. The instrument was re-moved in 1964 when the building wasgutted to make room for a large officecomplex. Through the personal and fi-nancial intervention of Richard Simon-ton, the organ was kept intact andstored for almost 10 years prior to find-ing a home in the Wichita ConventionCenter. In this environment, and withmuch refurbishing, the instrumentspeaks out more freely than it ever did

in the padded confines of the old Para-mount; the sound is rich and, rare for atheater organ, cohesive. In the mid -'70s, Nalle moved to Wichita to be-come organist in residence for theWurlitzer. Appropriately, this album isdedicated to the memory of Simonton.

The unusual thing about Nalle'splaying is that he avoids the typicalclichés. His textures are lean, allowingmusical details to come through, andhis rhythmic drive and control are re-markable. In his hands, the instrumentsounds more like an ensemble of jazzmusicians than the cumbersome mon-ster it usually is.

Nalle offers a variety of pop songs,old and new. The sound is just a littledistant for my tastes, but it probablyreflects accurately what you mighthear in the hall. Like most theater or-gans, this one hisses, the result of min-ute leaks in the high-pressure windsupply. The pressing quality is moder-ate to good. John M. Eargle

Wolftracks: John Kay & SteppenwolfNautilus NR -53, $15.98.

Sound: A- Performance: C -

It's admirable that Nautilus has theinitiative to issue rock albums thathaven't been available before-ideally,

the job of an audiophile label shouldgo beyond reissuing last year's top 20albums. The digital recording makessomething of a difference, but it's un-fortunate that Nautilus picked a recordas lackluster as Wolftracks to kick offthe series. John Kay was never muchof a singer, although he had his hey-day for a while toward the end of the'60s ("Born To Be Wild"). The othermembers of the original Steppenwolfhave long gone on to greener pas-tures. Self -produced, the record fea-tures original material with the excep-tion of Argent's "Hold Your Head Up"which doesn't stand up to the earlierversion. Hopefully, the second recordin Nautilus' all -new rock audiophile se-ries (which allegedly will be a reunionof Spirit) will be more valid musically.

Jon & Sally Tiven

The King Crimson Collection: KingCrimsonEG Editions/Jem EGKC 1-10, half -speed mastered; 10 discs, $89.80;$8.98 each.

Sound: B Performance: B

In doing a half -speed mastering jobon the recorded works of King Crim-son, the status of the group is raisedfrom cult classicists to prog-rock gods.There is still some question, however,as to how important this group was tothe development of contemporary mu-sic. Certainly the alumni of the groupwent on to form alliances such as For-eigner, ELP and Asia, but is being theprogenitor for future bombast a legitexcuse for instant canonization? Thequestion arises, is the purpose of thiscollection to boost Robert Fripp'sstanding in the rock community, or tomeet some demand of the generalpublic anxious to get their hands onearly recordings by John Wetton?

Taking these albums as a whole, onemust have the patience to sort throughthe self-indulgent passages in order toget to anything vital. For every "CatFood" or "20th Century Schizoid Man,"there is a "Happy Family" or ten, andthe presence of all these "name" per-formers doesn't make the random ram-bling of Fripp & Co. any more appeal-ing. As for the half -speed masteringjob that supposedly is the reason thesehard -to -find albums were reissued, the

28 AUDIO/JUNE 1983

A progressreport fromDolbyLaboratories

Only two years after itsintroduction, more than 4million listeners are enjoyingthe benefits of Dolby C -typenoise reduction in their stereocassette recorders. Thanksto its unique combination ofdual -level processing and theproven sliding -band princi-ple, Dolby C provides amplenoise reduction to satisfyeven the most critical listener,along with a freedom fromside -effects conventionalcompanders can't match.

But the rapid acceptanceof Dolby C is not all that'shappening. Now that low -voltage Dolby B ICs areavailable, more than 20personal portable cassettemodels with Dolby B -typenoise reduction are either onthe market or in the finaldevelopment stages. Inaddition, 20% of all VHSvideo cassette recorders nowbeing built are equipped withDolby B, including the manystereo models.

DolbyNoise Reductionin 1983

Number of Dolby C -type noisereduction circuits in use.

There is also progress withsoftware. Hundreds of pre-recorded VHS cassettesencoded with Dolby B arenow available, among whichare many feature films origi-nally released in DolbyStereo. And thanks to DolbyHX Professional, improvedaudio cassettes, duplicated athigh speed with significantlybetter high frequencyresponse, are on the way.

In 1983, confidence in thefamiliar Dolby trademarksis higher than ever before.There are probably noneothers as closely associatedwith quality sound through-out the world.

Dolby Laboratories LicensingCorporation, 731 Sansome Street,San Francisco, CA 94111,Telephone 415-392-0300. Telex 34409."Dolby" and the double -D symbolare trademarks of Dolby LaboratoriesLicensing Corporation. S83/3992/4968

DO DolbyEnter No. 9 on Reader Service Card

original recording jobs done on the firstfive King Crimson albums were so un-stupendous that double -speed master-ing could have done the job as effec-tively. Anyway, it sounds like some ofthese were not made from first genera-tion tapes. Fortunately, the $8.98 pricetag is more in line with the sonic value

here, for their interest in sonic excel-lence was certainly at the low end ofthe industry standard.

It all comes down to how much of aFripp fan you are, because the soon -to -be -stellar sidemen aren't doingdiddley. And Fripp, for all his preten-tious conceptual idiocy, happens to

Attention: All Record Owners

HOW TO PREVENT WARPING YOURMOST PRIZED RECORDINGS

SetNI)INTRODUCING

SAFE (TM)

The SOUND SAFE System protectsyour valuable investment in records; audiophile,collector's items or just plain favorites. Evenvideodiscs. If your discs are not stored in atotally vertical position (upright withoutleaning), the forces of gravity can causewarpage. Warped records, as you've no doubtsadly experienced, dramatically reduce thereproduction potential of your stereo system.SOUND SAFE's exclusive inner -dividerstructure prevents your records from tiltingand from excessive pressure by adjacent discs.

RESOUND SAFE EXCLUSIVES NI EACH SOUND SAFE PROTECTS UP TO 20 DISCS

SOUND SAFE CAN STAND ALONE ON A TABLEOR BE PLACED SIDE BY SIDE ON SHELVES

MADE OF SUPER STRONG HIGH IMPACTSTYRENE

SLEEK STYLING AND RICH BLACK COLORINGCOMPLEMENT ANY ENVIRONMENT

THE PERFECT GIFT FOR ANYONE WHO COLLECTSOR OWNS RECORDS OR VIDEODISCS

SOUND SAFE MODULES CAN FORM THE BASISFOR YOUR OWN INDIVIDUAL FILING SYSTEM

NOT AVAILABLE IN STORES (THE SOUNDSAFE IS EXCLUSIVELY AVAILABLE FROM THEQUALITY CONNECTION)

FREE BONUS!!!"How To Care For Your Most Prized Recordings."A Quality Connection Data Report Free with eachSOUND SAFE

THE VERTICAL DISCSTORAGE SYSTEM

ri IT SAFEGUARDS YOUR RECORDS TOTALLYVERTICAL-PROTECTING AGAINST WARPAGE

ITS A CUSTOM FILING SYSTEM FORRECORDS AND LASER VIDEODISCS

Dimensions:Height -123/4" Depth -121/2"Width -6" Weight -2 lbs. 31/2 oz. each

NI MI NOHOW TO ORDER IN IN NI II PRICES: $12.99 for one SOUND SAFE.

2-9 SOUND SAFES $11.99 each10-49 SOUND SAFES $10.99 each

I 50 or more SOUND SAFES $9.99 each

I SHIPPING & HANDLING: (USA)1 SOUND SAFE $2.50

II 2 SOUND SAFES $3.50 TotalII 3 or more sound safes

Call our toll -free number for exact rates.

Please allow 3-4 weeks delivery. Californiaresidents add 6% sales tax.All orders shipped UPS.

Az CREDIT CARD HOLDERS CALL74 TOLL -FREE 24 HOURS A DAYI11 VISA MASTERCARD AMERICAN EXPRESSESS

800-423-0688a If busy, after hours, 24 hours on weekends

or if you live in California call:

IP 800-228-2028 (Ext-128)

Or simply send your check or money orderIN (including shipping and handling charges) to

IItheaddress below.

Imo THE QUALITY CONNECTION

IDEPT A, 18653 Ventura Blvd., Suite 314,Tarzana, Calif. 91356 (213) 882-3542

©1983. THE QUALITY CONNECTION30

have a great deal in the way of guitartechnique and can be engaging de-spite himself. On Red, in particular, heplayed some disturbingly innovativestuff, and even on the early albums hedidn't have much trouble moving hisfingers around.

Though Fripp was not a tremendousinfluence on the future of music, he justmanaged to surround himself with indi-viduals who were very good and whowould eventually make their own mark.The closest he has come to being anevent unto himself was when, for abrief moment, he guested on Bowieand Blondie records.

These 10 records (which, by theway, come in paper rather than plasticsleeves) seem to indicate that EGwants them kept in print rather thanthat American audiences are clamor-ing for them. The music sounds datedand primitive, but when it was releasedit seemed far-out and futuristic. Such isthe benefit of time and perspectiveupon the works of artists who juggletalent with self -hype. Jon & Sally Tiven

Mozart: Symphonies No. 40 & 41.The Chicago Symphony Orchestra,James LevineRCA ARC1-4413, $8.98.

Levine does something in these twoperformances that we are not used to:He takes all the repeats. The result is35 minutes on one side and 37 on theother! RCA's disc -cutting engineershave accomplished this feat betterthan I would have ever thought possi-ble. But even then, they had to cutsome bass and finish the sides muchcloser to the label than is normal. I

would credit their Zuma variable -pitchand depth computer for accomplishingmuch of this. When time comes to re-lease this album in the digital CompactDisc format, it may just barely be madeto squeeze into that medium.

Unfortunately, the music is not wellserved by either the technology or bythe approach Levine has taken. Theplaying sounds pushed, and, in combi-nation with the many repeats, thismakes for some tiresome moments. Anexample is the second movement ofthe 40th Symphony which, at 15:02minutes, is twice as long as we areused to and seems almost endless.The finale to the 41st runs 11:02 min -

AUDIO/JUNE 1983Enter No. 41 on Reader Service Card

"Though recorded in 1959,Previn's jazz version ofWest Side Story is a primeexample of what can bedone with an old master."

Some Girls: The Rolling StonesMobile Fidelity MFSL 1-087, $15.98.

Sound: A Performance: A

The Rolling Stones seem to revel inmessiness. ff rock 'n' roll is kept aliveby imperfect records, these geezers

are undoubtedly the masters of theform: When a track is too tight, theymanage to throw in a guitar figurewhich messes the rhythm up a bit. Be-tween Mick Jagger's never -spot-on vo-cal and Charlie's vague approximationof the tempo, humanity is not only pre-served on Stones records, it is embod-

Andre Previn

utes and is rushed in the process.The combination of reduced transfer

level and the close spacing of grooveshas resulted in a pressing quality notup to Europadisk's normal standards.

The competition with this coupling ofSymphonies is fierce, and two recentacquisitions point it up well. Schwarzand the Los Angeles Chamber Or-chestra abound in the briskness whichit seems Levine was looking for, whileKubelik and the Bavarian Radio Sym-phony score higher in their emphasison these Symphonies' lyrical elements.

John M. Eargle

West Side Story: Andre Previn andHis Pals Shelly Manne & Red MitchellMobile Fidelity MFSL 1-095, $17.00.

What well-known classical conduc-tor was a jazz near -great during the'50's? The answer, of course, is AndrePrevin. He abandoned his career asHollywood wunderkind to become aconductor, and while we have gainedhis remarkable insights into English or-chestral music, we have lost the fresh-ness and invention of his jazz pianostyle.

Previn's collaborators on West SideStory are Shelly Manne on drums andRed Mitchell on bass. The recordingwas made in 1959; but for a minuteamount of tape hiss, you would neverknow it. The sound is clean as can be,and it stands as a prime example of anexcellent old master tape given thebenefits of up-to-date stereo disctransfer and superb processing.

The eight cuts on this disc are variedin style and never for a moment dull.Only one of them, "America," doesn'tseem to work; it lacks the Latin rhyth-mic drive it needs to make good musi-cal sense.

Congratulations to Mobile Fidelity fordressing up this old masterpiece forour enjoyment. John M. Eargle

If you love music,

make it LAST

Only LAiT offers a formula that will at -Bally pr,,serve your d.scs; andanother that will actually protect your stylus-plus the most effectiverecord and stylus c1Gaine-s in the world LAS'I pr3ducts, formulatedfor record archives. are r ow available to

LAST record preserlative actually penetrates the record groove to adepth of ten moleauar layers, protec:ing the groove from the con-stant, complex movenserts of the styl mO plays!

LAST power clew cleans records. 1L(e no other product on tiemarket:. It even removes mold release-the potentially damagingmaterial left in the gi C 01:?, Jy the mant_factoring process.

STYLAST stylus treatment is molectcarly .nr_lneered to lower fric-tion by filling in the hoilcws on the surface of -_-.very diamond, reducevibration effects by creating a liquid cushion for the moving stylus . . .

and prriect the elascaner holding the cintiever :c the cartridge andthe adh-asive holding -he diamond to die cantilever_

LAST stylus clew removes the most gracious accumulations 311the styUlis while protezting :he adhesive I- olding tuna diamond tip andthe caarflever suspension.

Of course, you love in iriir That's wh3. you shciald make it LAST. LASTis at finer dealers est tywhere.

2 Dupont St"Tet, Plainview, MESA, York 1i8(6 Tel. 516-349-918C

AUDIO/JUNE 1983 31Enter No. 29 on Reader Service Card

BACK ISSUES/BOUND EDITIONS/BINDERS

BACKISSUESSingle copy back issues of AUDIO for 1981and 1982 are available. (NOTE: Jan -Aug '81issues are In limited supply.) $5.00 perIssue postpaid.

BOUNDISSUESA ready reference for audiophiles! A fullyear of AUDIO is carefully hard -bound foreasy reference. Complete volumes forthe years '77, '79, '80, '81 and '82 areavailable. $40.00 each plus $2.50 forpostage and handling.

BINDERS/SLIPCASESMaintain your AUDIO collection in thesetop quality binders or slipcases. Binders$9.00 each, 3/$26.00, 6/$50.00.Slipcases $7.65 each, 3/$22.00,6/$40.00. $2.50 per order handlingand postage.

TO ORDER Indicate issue/book/binder/slipcase. Include proper amount for postageand handling. California residents must include 6% sales tax. Allow 4 weeks for delivery.$15.00 MINIMUM CREDIT CARD ORDER. Make checks/ money orders payable to: OldDel Mar Emporium (ODME), P.O. Box 1621, Spring Valley, CA 92077. FOR CREDITCARD ORDERS CALL TOLL FREE 1-800-854-2003 EXT. 835 In CALIF. CALL1-800-522-1500 EXT. 835.

The AdventMarket Survey.

For three and a half years Advent has beendeveloping a loudspeaker unlike anythingwe've ever produced. We need some infor-mation regarding speaker/room interface tofinalize the design. If you will send us thissurvey, we will send you technical data onthis new Advent 6003. In addition, we willsend a coupon good for $50.00 off on thepurchase of a pair of these new Adventloudspeakers. Please fill out the survey andsend to the address below.r --1

I NAME I

I ADDRESS I

I ICITY STATE__ ZIP

II What model Advents do you own?

I

I What year did you purchase them?I

IWhat room are they in?

I

IHow large is the room? Floor area x

I

ICeiling ht.

LAdditional comments are welcome. JADVENT I13H N. United Park way

Schiller Park. Illinois 60171i

"On Some Girls,Mobile Fidelity has onceagain done a fine job, withall the individual guitarfigures articulated."

ied by them. It is for this reason thatyou wouldn't think they'd lend them-selves to the audiophile format; the as-sumption would be that records thissloppy are made for radio or parties,but not simply listening to in your livingroom.

Granted, Some Girls is not exactlyRavel or Beethoven, yet it translatesextremely well to a listener's recordwhen all the original frequencies andseparation are preserved. It also hap-pens to be the last really well -madeStones album (all we've seen since aregreatest hits, live versions, and out-takes from these sessions), and there'sno mistaking The Stones' excitementwhen they first record with a new band.The addition of Ron Wood and IanMcLagan made for new textures thathad only been hinted at when Woody

.--

. ,

Keith Richards & Mick Jagger

was a temporary sub in the band, andafter much touring the guitars and key-boards had time to gel. On this press-ing particularly, you can hear the guitarfigures individually articulated. In retro-spect, Ron Wood delivered some verynice figures, despite accusations thathe was just Keith Richards' alter ego.This disc also had strong production,and some credit should go to ChrisKimsey, who engineered and mixed.This pressing seems to favor the high -end extremes less, and in giving amore objective view of Some Girls,makes it more "Respectable."

Once again Mobile Fidelity has donea fine job, not that they were given theproverbial sow's ear from which tomake a silk purse. However, the ideaof making a Stones LP into a high-fidelity work is not far from the notion ofmaking a full-length feature movie outof a newspaper comics section. Thenagain, Superman and Annie seemed tofind their audience easily enough, andsurely Some Girls will too.

Jon & Sally Tiven

32 AUDIO/JUNE 1983

IT'S IMPOSSIBLE FOR YOU TO MAKE ACASSETTE THAT SOUNDS AS

SPECTACULAR AS THESE!Forget everything you've ever heard

about pre-recorded cassettes.EXCLUSIVE PRE-RECORDED CASSETTES

Until quite recently, pre-recordedcassettes have done nothing to complementthe sonic capabilities of your tape deck,automobile cassette system or portableplayer. They've been mass-produced,excessively noisy and sonically lifeless.They virtually waste the high fidelitypotential of your stereo system.

Many of you have been forced to makeyour own cassette transfers from yourfavorite popular and audiophile recordings.You have probably improved the soundquality to a more acceptable degree.Perhaps you're "almost" satisfied. Or justmore frustrated. We've got the answer.

DIRECT FROM THE ORIGINALMASTER TAPE

The Quality Connection is proud toannounce the immediate availability of themost spectacular pre-recorded cassettesyou've ever heard. They are limited edition,custom cassettes created by two of the mostrespected companies on the audiophilescene... Delos Recording and Mobile FidelitySound Lab. You can order them now by mailor use our toll -free telephone numbers.

These mega cassettes are recordeddirectly from the original stereo masterrecording tape in "real time." They aren'thigh-speed duplicated like conventionalcassettes. Every subtlety of the artist'soriginal performance is meticulouslycaptured. Nothing is lost. You'll hear FrankSinatra, The Beatles, The Philadelphia Orchestrawith Eugene Ormandy, Christopher Cross, SteelyDan, The Rolling Stones and countless othersas they were meant to be heard.

YOU CAN'T MAKE...OR BUY...A MORE INCREDIBLE CASSETTE

We challenge you. It doesn't matter howexpensive or extensive your stereo systemmay be. You won't be able to come close to

matching the startling dynamic range,frequency response, signal-to-noise ratio ordramatically reduced background noiselevels of these cassettes. Remember, thesetapes are created directly from the originalmaster tape source...a magnetic medium.When you attempt to transfer sonic informa-tion from a phonograph record (a mechanicalmedium), you must deal with the potentialfidelity weaknesses of every componentof your playback system.

The Quality Connection will not com-promise its quality standards. We sincerelybelieve that the Original Master Recording'"High Fidelity Cassettes by Mobile FidelitySound Lab...and the Digital ProfessionalReference Cassettes- by Delos Recording...are the finest pre-recorded cassettes moneycan buy. Mobile Fidelity Sound Lab'scassettes are recorded on pure chromiumdioxide tape, while Delos utilizes metalparticle tape Both include Dolby B noisereduction. For a more complete technicalbreakdown of these cassettes, please circlehe reader response card in the back ofthis magazine.

FREE BONUSES WITH YOUR ORDER

If you order one of our cassettes thismonth, well send you The QualityConnection Data Report entitled "How ToCare For Your Prized Pre -RecordedCassettes." PLUS you'll start receivingour monthly newsbulletin, ON THE QC.detailing the latest new audiophilecassette and album releases availablefrom The Quality Connection. It's ourway of saying thank you.

DON'T TAKE OUR WORD FOR IT...JUDGE FOR YOURSELF.

Let your ears be the final judge. Order atleast one of these sensational cassettestoday by mail or phone. We'll rush it to yourhome or office. Put it on your own stereo

system...at home, in your car or on yourWalkman. You'll not only hear the music...you'll feel it. You may not find these supercassettes at your local stores, but they'realways available from The QualityConnection, 24 hrs. a day, 7 days a week.Order now for fastest delivery.

A SAMPLE OF OUR LATEST SELECTIONSAVAILABLE IMMEDIATELY!

MF :-,-074 CHRISTOPHER CROSS

"CHRISTOPHER CROSS" MF 0-084 ALAN PARSONS PROJECT

"I ROBOT"DL C-3015 EUGENE ORMANDY - PHILADELPHIAORCHESTRA "TCHAIKOVSKY SYMPHONY #6"

MF C-086 FRANK SINATRA "NICE 'N' EASY"

DL 0-3007 LOS ANGELES CHAMBER

ORCHESTRA "VIVALDI: THE FOUR SEASONS" MF 0-047 THE BEATLES "MAGICAL

MYSTERY TOUR" MF 0-510 SIR GEORG SOLTI - LONDON

SYMPHONY ORCHESTRA"HOLST: THE PLANETS" DL 0-3017 Y CHAMBER SYMPHONY OF

NEW YORK "BEETHOVEN SYMPHONY #6"MF C-088 CROSBY, STILLS, NASH &

YOUNG "DEJA VU" MF C-017 PINK FLOYD "THE DARK

SIDE OF THE MOON" DL C-3010 LOS ANGELES CHAMBER

ORCHESTRA "WATER MUSIC OF HANDEL"0 MF C-049 KENNY ROGERS "KENNY

ROGERS GREATEST HITS" MF C-005 SUPERTRAMP "CRIME OF

THE CENTURY" DL 0-3012 LOS ANGELES CHAMBER

ORCHESTRA "MOZART SYMPHONY #40"

MF C-060 THE ROLLING STONES"STICKY FINGERS"

MF C-008 ZUBIN MEHTA - LOS ANGELESPHILHARMONIC "STAR WARS/CLOSE

ENCOUNTERS SUITE" DL 0-3011 LOS ANGELES CHAMBER

ORCHESTRA "DVORAK SERENADE OP 22" MF C-042 THE MOODY BLUES "DAYS OF

FUTURE PASSED" MF C-033 STEELY DAN "AJA"

AND MANY MORE. WRITE US FOR A COMPLETE LISTING

ttVf M HOW TO ORDERPrices: Original Master Recording High

Fidelity Cassettes (MF prefix) are$17.99 each. Digital ReferenceProfessional Cassettes (DL prefix)are $18.99 each.

Shipping & Handling: If your order is:(USA & Canada) Under $20 . Add $2.50

$20-$40 ... Add $4.00

Double these Rates)$41-$75 ... Add $5.50Over $75 .. Add $7.00

California residents: Please add 6'6% sales tax. All ordersshipped UPS. Please allow 3-4 weeks for delivery.

CREDIT CARD ORDERS CALL TOLL -FREE24 HOURS A DAYI

Visa - MasterCard E"fliv'- American Express

800-423-0688(MONDAY - FRIDAY, 9AM - 5PM PST)

If busy. after hours, 24 hours onif you live in California, call:

800-228-2028 (Extension 228)u ;imply send your Lt,eck or money order to the addressbelow (including shipping and handling charges). To speedprocessing of your personal checks, please include yourphone number and drivers license number.

THE QUALITY CONNECTIONDept. SR 18653 Ventura Blvd., Suite 314. Tarzana.California 91356 (213)882-3542

(Foreign orders:

Errer No. 42 on Reader Service Card©1983. The Quality Connection

CLASSICAL RECORDINGSEDWARD TATNALL CANBY

FRONT AND CENTENARY

Stravinsky Celebration. New EnglandConservatory.NEC 120, $9.98. (Available from Gold-en Crest, P.O. Box 2859, HuntingtonStation, N.Y. 11746.)

This is an excellent live recordingwhich celebrates the centennial ofStravinsky's birth. My only complaint isthat it should be more adventure-some-i.e., two discs. So much in thisstudent/faculty series of concerts isnecessarily omitted. It is important thatwe keep our ears tuned to the remark-able things that can be done todaywith our professional recording equip-ment, outside of the general run of re-cord releases, actively inside the largeand varied world of music and musicalsound. I would hate to have missedthis one.

The music spans Stravinsky's wholelong career, to his very last little piece,and is performed by all the major de-partments of the Conservatory, thechorus under Lorna Cooke deVaron,the orchestra under Eiji Oue and so on.What makes things interesting, ofcourse, is the enthusiasm of advancedstudent performers, young enough sothat they understand and love the mu-sic as too few senior orchestral playersdo. And also the direction of experi-enced faculty members. All this com-municates-and there is an audience(deftly managed in the editing) of morestudents and friends, families, obvi-

ously highly interested. If you want liveon tape, this is it.

I particularly enjoyed the DumbartonOaks Concerto of 1938, very Bach -like,wonderfully tuneful and genial for Stra-vinsky. I heard one of the early perfor-mances at Dumbarton Oaks itself inWashington, D.C. during the war. Alsothe set of Russian church anthems, inthat marvelously rounded style with thebig bassos and ornate sound that youwill also find in Rachmaninoff, Tchai-kovsky and many others. But perhapsbest of all was the segment of thatfamiliar warhorse, "Firebird" (the Fire -bird Suite), done in an absolutely hair-raising manner, so modern soundingyou wouldn't believe. Just as the old-line conductors used to bring out theRomantic aspects of this early work, sothe youth of today emphasizes thegenuine modern-zowie! We shouldhave the rest.

Indeed, what is noticeable through-out the disc is the easy domination ofbrass and percussion over the formerlydominant strings (at least as record-ed). The strings seem to me ratherweak and fussy; the brass is all brassyconfidence. That's good for today's lis-tening tastes.

Excellent clean sound, in a ratherdead acoustic (I think Boston's JordanHall, with audience), giving a very clini-cal and sharply detailed effect, clearlyjust right for this composer's often dryand rhythmic music.

The Odessa BalalaikasNonesuch D 79034, digital disc, orcassette (D 4-79034), $11.98 each.

What struck me first, listening to thisquite charming disc (and cassette)was that the Russians are entirely freefrom the uncomfortable trichotomy inour music, between "classical," popand folk. The modern balalaika, re-vived in the 19th century from a cruderfolk instrument, is definitely poisedright between these three and suffersno problems at all. Whereas we arealways offending somebody in twowrong corners of our triangle-whetherit's classical -pop, pop -folk, folk -clas-sic! One listen to this balalaika musicand you'll see what I mean. It justflows, easily, tunefully and effortlessly.Who cares what corner it does ordoesn't inhabit?

An apt analogy because the balalai-ka is itself triangular, the only suchinstrument of its sort. It comes in awhole family, low bass through treble,and that is what we have here, sound-ing indeed like a considerable orches-tra, not merely a quintet. This instru-ment is also remarkable in that its tech-nique includes the strummed note, likethe old-fashioned uke hereabouts, butricher and easier.

Curiously, this band was formed onour West Coast by four very un-Rus-sians; they became so adept that inthe end they attracted two genyooineRussians, one of whom plays, the otherdoes the arranging. So now they areauthentic. The superb Russian -stylecontralto who sings one number oneach side is named Linda O'Brien. I

found this recording very pleasing andutterly musical and so will you.

Haydn: The Six Last Sonatas. GlennGould, piano.CBS 36947, digital.

Glenn Gould stands unique in musichistory as the first major pianist to giveup the live concert entirely in favor ofrecording. Even some engineers havedoubts about that, but all of us in thefield owe him a lot of gratitude. Yes, hewas an eccentric-and maybe bettereccentricity on tape, invisible (thoughonly too audible at times!), than on thestage. But the real boost he gave wasto the validity of recording itself, dis-

34 AUDIO/JUNE 1983

tinct from the concert. That is whatmattered. Beethoven was even moreeccentric, remember.

Absolutely no question, Gouldthrived musically in his solitude, if re-cording can ever be called that. Hegrew and grew-he became one of thegreatest sheer interpreters of the oldclassics, as is clear when one tra-verses his successive recordings, frompowerful to far more than that. He re-did the Bach Goldberg Variations, hisfirst famous recording, for this very rea-son; he knew he had much new andmore profound thinking to get down ontape.

So-those who think the Haydn pi-ano sonatas are nice, tinny little pieceshad better consider this release. Pia-nists, of course, but also piano teach-ers who assign these works to theirthousands of students! Not to mentionthose of us who have listened toHaydn, on records or elsewhere, oreven played them, more or less, our-selves. Absolutely breathtaking, is all I

GlennGould

I,

can say. I could use all the publicitywords-stupendous, acclaimed, andso on, but I'll leave it simply that I wasstunned. That is the sound of GlennGould in recording.

The actual sound, by the way, iscleanly digital but a bit in the familiarColumbia -CBS style, rather dry, a tracesteely. Not at all unpleasant, it is aperfectly good top-quality alternative.

ARM YOURSELF FOR AMUSICAL ATTACK.

The new 4BX with Impact Restoration.The clash of a cymbal. The blast of a sax.

The new 4BX with Impact Restoration releases these musi-cal attacks, adding punch and clarity to sounds otherwisedulled in the recording process. These musical transients arean essential part of music anticipation-the pleasure of know-ing, but not knowing precisely, what will happen next.

The 4BX also incorporates our most advanced multi -banddynamic range expander, bringing out all the drama of theloudest and softest sounds. Music takes on a new presence, anew "liveness," like you've never heard before.

The 4BX's unique remote Logicontrol lets you adjust vol-ume, expansion, transition levels and Impact Restoration-allby push button-from anywhere in the room.

So if you're missing the drums in the distance, and the callof the bugles, don't surrender. Arm yourself for surpriseattacks with the new 4BX.

For our full line brochure, call or write:dbx, Incorporated, 71 Chapel Street,Newton, MA 02195. (617) 964-3210.

Music can't live without us.

BEHIND THE SCENESBERT WHYTE

SPEAKERS OF THE HOUSEFor several months now, I havebeen evaluating two interestingnew loudspeakers, the Meridian

M10 and the Acoustat Model Eight.The Meridian is manufactured by

Boothroyd Stuart, Ltd. of Huntingdon,England. In recent years, Meridian hasspecialized in what they call "interac-tive" loudspeaker systems:Simply put,this is a design wherein the driver ele-ments are combined with dedicatedamplifiers and crossovers, integratedin a common enclosure.

The M10 is the most advanced andmost powerful of Meridian's line of in-teractive loudspeakers. One of thegoals of the design is to create a virtualpoint source of sound, with symmetri-cal horizontal and vertical dispersion.To this end, a unique enclosure is em-ployed. On the front of the loudspeak-er, 5 -inch cone midrange drivers aremounted above and below a 2 -inchdome tweeter. These drivers are in aheavily damped enclosure isolatedfrom the woofers. The cabinet's widthis just slightly larger than the 5 -inchmidrange units, thus presenting a verynarrow frontal area said to reduce dif-fraction distortion. On each side of thiscabinet are mounted two directly driv-en, 5 -inch bass drivers; a flat -dia-phragm, 8 x 12 -inch passive radiator ismounted behind the virtual source.This slim enclosure is integrated intothe top portion of a pedestal of thesame width. Contained within the lowerpart of the pedestal are two 75 -wattamplifiers for the bass system, another75 -watt amplifier for the midrange driv-ers, a 35 -watt amplifier for the dome

Meridian MlOs

tweeter, an electronic crossover, andtwo power supplies. Quite an assem-blage-and in spite of the close prox-imity of the various elements, very littleheat is generated.

The M10 is thus a tri-amplified sys-tem, and Meridian points out that theamplifiers and crossover are config-ured to match the characteristics of thedrivers. Crossover from the bass sec-tion is at an unusually low 190 Hz, anda time -delay -compensated, fourth -or-der crossover directs high frequenciesto the tweeter from 2 kHz on up.

Meridian claims an overall frequencyresponse of -3 dB at 33 Hz and 24kHz, with THD of the entire electronicsystem typically less than 0.01%. Thisslim pedestal design stands 39 incheshigh, with the upper enclosure 18 inch-es deep.

Since the M10 is an active system,the only other electronic componentnecessary is a preamplifier. Meridianrecommends their own Model 101, butany high -quality preamplifier can beused. Each M10 is supplied with fre-quency -compensation plugs whichcan be inserted in the rear of the enclo-sure to tailor high -frequency responsefor variations in room acoustics.

To evaluate the Meridian M10, I

teamed it up with a Levinson ML6Apreamplifier which superbly comple-mented the fine performance of thisunusual loudspeaker. With 270 watts oftri-amplified power per side, the M1Osgave an impressive performance withlarge-scale symphonic works. I hadthe pleasure of a visit from Bob Stuart,the astute young designer of the M10,and we listened to digital discs on aprototype Sony CDP-101 digital audiodisc player. It was obvious that theM10 could handle the great dynamicrange of a number of recordings athigh output levels, certainly approach-ing the 110 dB on program peaksclaimed by Meridian. Bass responsewas very firm and solid: Bass drumshad plenty of punch and weight, andcontrabass had a most satisfying cleanresonant "thrum." Only the extremelow organ pedals of Virgil Fox record-ings indicated the need for a goodsubwoofer. Transient response of theM10 is exemplary. On the M & K HotStix drum recording, high percussionof cymbals and bells was very accu-rate, while the rim shots were positively

Acoustat Model Eight

explosive in their projection. Given theproper source material, high -frequen-cy response of the M10 was verysmooth, although there was a slighttendency to brightness. Judicious useof the frequency contouring plugswould be indicated in some rooms. Asexpected, because of the point -sourceemphasis in the design, imaging anddepth projection were extraordinarilygood. The image focus and instrumentlocalization have to be consideredamong the top three or four loudspeak-ers which excel in this parameter. Theoverall sound of the M10 is accurate,very musical, and not fatiguing. A pairof M1Os costs $4,450, but it must beremembered that this includes 270watts of tri-amplification per side.

Acoustat now proudly proclaims thattheir line of electrostatic loudspeakersputs them in the category of theworld's 10 best-selling loudspeakers. Ihave no reason to doubt this, as theirspeakers have garnered much ac-claim and steadily increasing sales inthe relatively short span of the compa-ny's existence.

Some months ago, Acoustat updat-ed their speakers and added severalnew models. The Model Eight, theirstate-of-the-art "flagship" electrostaticloudspeaker, costs $4,750 per pair. Itis an imposing monolith, standing 7feet, 10 inches high, 36 inches wide, 4inches deep and weighing 220 pounds!

The Model Eight is, in essence, twoModel Four speakers stacked in a sin-gle unit. As with all current Acoustat ES

36 AUDIO/JUNE 1983

MIC

HE

LOB

migipi%

"Quite obviously, a speakerof such imposing size asAcoustat's Model Eightshould be used in rooms ofappropriate dimensions."

loudspeakers, the Model Eights sig-nal -carrying wire grids are made ofhigh -purity copper, utilizing 47 strandsof 40 -gauge wire. This is claimed toproduce high output with less mid-range coloration. The wire grids arestrung on a very rigid honeycomb plas-tic form, with the 0.0005 -inch -thick,

conductive mylar diaphragm sand-wiched betweer the grids. Each panelof the Model Eight is equipped with ahigh -frequency balance control for fre-quencies above 10 kHz, and the sys-tem's frequency response is rated as24 Hz to 20 kHz, ±2 dB.

Each Model Eight panel is also

Why in the worlddo we need anotherline of turntables?

With Linn Soodek, Oracle, Pnk Triangle and other hichjual.ty units already on he U.S. market, wry do we needstill another line of turWat.Jes?

Just listen to an Arisqpn in comparisor, tests you'llhave the aosNer. Aristo9 turrtables prove that tns:e willalways be s need for sLch, components-as long as mus.crovers can oear as well as listen.

Do the sensible thiog, Audition an ArsIon before ycuAnvest in any turntable.

For comp.ete ioforina:ion, write to us at 122 DupontStreet, in Plainview, New York 11803.

ARISTON AUDIOFor those whi) dn hear as well as- listen.

equipped with two Acoustat MK -121input "biformers," since each side ismeant to be driven by both channels ofa stereo amplifier. (The MK -121 is saidto permit a largely resistive load of 6ohms.) The Model Eight requires a lotof amplifier power. I have used twoAcoustat Trans Nova 200 watt/channelunits very successfully, with the ampli-fiers providing a very clean, highly de-tailed sound with plenty of punch. I

currently use a Levinson ML -3 amplifi-er on each panel of the Model Eight.The huge voltage and current capabili-ties of the ML -3 amps provide a soundof unparalleled power and refinement.

Obviously, a speaker of such impos-ing size should be used in rooms ofappropriate dimensions. Acoustat rec-ommends rooms on the order of 20 x30 feet, and their specification forsound pressure level is 125 dB at 25feet in a room this size! However, anLEDE (live end -dead end) room can bemuch smaller since, with the absorp-tion, the speaker is essentially in an"infinite" room. That is how I have theModel Eights set up, and it works per-fectly, with excellent directivity and alarge soundstage. Imaging is quitegood, but not on the order of a B & W801. On the other hand, depth percep-tion is excellent. In spite of the speak-er's height, I do not get disparate orelongated images or the sense of anorchestra performing above my head.

As to performance, the Model Eighthas to be deemed one of the world'sgreat loudspeakers. Transient re-sponse on everything from percussionto piano has a "right now" immediacy.When fed signals from master analogtapes (and some digital tapes, too),string sound can be ultra -smooth andof ravishing tonal beauty. With 23square feet of radiating diaphragmdriven by two Levinson ML -3 amplifi-ers, bass response is awesome in itsoutput, clarity and visceral impact.Even with the Virgil Fox organ record-ings, no subwoofer is necessary. Inlarge-scale orchestral works like thoseof Mahler, Bruckner and Stravinsky,the dynamic range capability is enor-mous. No question whatever that digi-tal sound can be handled. Given arecording of the requisite high quality,the Acoustat Model Eight can furnishsome of the most accurate, wonderful-ly musical sound extant. ul

A iston RDP' Superieu. shown her: with SME 3009P toncarr-

Enter No. 6 on Reader Service Card

38 AUDIO JUNE 1983

WHY PUT TWOFILTERS INTO ONEGREAT COMPACT

DISC PLAYER?

MINII an1111111

MIN NINIrrnM/1/ SRI 1 I I 111111 ERN IN1111111111111111111111111111111111111111111MNMI I I MI 11111 11111 III 111111//111/UNNANENNINM MINI

111 .111

IIIIIIIIII11111111111111111111:'oars= MO INN MN

r No on Rea

Kyocera goes to double lengths tomake sure there's no distortion inits DA -01 Compact Disc Player. It'sgot both digital and analog filters-so nobody hears distortion.

The advantage of digital andanalog filtering systems.Modern technology has made ana-log filters pretty effective. But therecan be a problem-analog filtersby themselves render limited per-formance. By combining an ana-log filter with a digital filter, andprecisely types injust then t way, the limitationsfound wit analog filters are notthere anymore. Thanks to theunique use of these filters, and animpressive array of very advancedcircuitry, the Kyocera CD Playerprovides accurate, crystal-clear, life-like sound.

The awesome specs that onlydigital can provide.Needless to say, the Kyocera DA -01comes through with some specs thatare mind -boggling: A full 90 dBdynamic range...flat frequencyresponse from 20-20,000 Hz...quiet 90 dB S/N ratio...and totalisolation 90 dB channel separation.

And, just in case you didn'trealize it, with the fabulous discplayer system, as provided inICyocera's DA-Ol Player, there isno contact between disc and play-back head. No tics, clicks, pops,scratches or record wear. And theDA-Ol plugs right into your presentaudio system-Kyocera or others-just like a conventional turntable.

Easy to use, but total control ofevery function.The DA -01 is easier to use than amodern cassette deck-slide thecompact disc into the disc compart-ment, shut the door and hit theplay button. With the DA -01'sfeather -touch controls, you canplay the whole thing (60 minutesa side)...repeat a track...scan...pause...skip... advance...index...and program up to 24 differentsegments with an electronic mem-ory. A functional LED digital paneltells you program running timeand just where the optical scanneris on the disc.

Admittedly, our DA -01's arecarried only by selected dealers.If you have trouble findingone, contact: Kyocera Inter-national, Inc., 7 Powder HornDrive, Warren, NJ 07060 (201)560-0060.

CCKYOCER2

VIDEO SCENESBERT WHYTE

THE CAVIAR SYNDROMEWhy is it that if products are ofvery high quality, or are veryexpensive, or are rather exot-

ic, so many people seem to resentthese products and delight in puttingthem down? I guess it can be chargedto a petty streak in human nature. I callit the caviar syndrome: You hear peo-ple say, "I've never tasted it, but I'msure I wouldn't like it." Or those whoderisively sneer at a gleaming newMercedes and state that "My Chevygets me from point A to B, and that's allI need."

It would seem that projection TV fallsinto this category. Yes, it is expensive,and you always hear those well-wornclichés, "It's too big," "It takes up toomuch space," or "The screen isn'tbright enough." All complaints dulynoted, but isn't it interesting that whenthe World Series or the Super Bowl isgoing to be broadcast, the neighborscall up to ask if they can see the gameon your big screen?

There is no doubt that complaintsabout the size of projection TV sys-tems, their limited screen brightness,and restricted viewing angles wereperfectly valid in the early models.However, there has been considerableprogress in correcting these shortcom-ings, and current models are quite so-phisticated. A case in point is NEC'sPJ-4000EN rear -projection N.

This unit has a 40 -inch screen, yet itis only 22 inches deep, about the sameas a conventional 25 -inch TV set.Height is 48-5/16 inches and it is 37inches wide. A large unit to be sure,but not overwhelming. This rear -pro-jection system uses three in -lineSchmidt -type CRT lenses plus an ultra -fast f/1.0 projection lens. This gives anexceptional 150 foot-lambert screenbrightness, which is just about thesame as a good quality 25 -inch TV set.In addition, the PJ-4000EN has a hori-zontal viewing angle of ±60° and a± 18° vertical angle. Thus, fairly largegroups can view the 40 -inch screen; inearlier units, off -axis light fall -off re-stricted viewing angles. Granted, a 40 -inch screen doesn't approach the 6 -foot monsters usually found in two-piece projection TVs, but it appearsthat 40 to 50 -inch screens are the bestcompromise, furnishing quite a largescreen with high brightness levels,wide viewing angles and good resolu-

tion. The PJ-4000EN offers many otherfeatures and amenities. It has phase -locked loop electronic tuning, wirelessinfrared remote, 134 -channel CATV ca-pability, and input/output channels forVCR, videodisc, video games, etc. Theunit has a 10 -watt stereo amplifier andtwo speakers for stereo sound. TheNEC PJ-4000EN is the embodiment ofa new breed of video projectors thatmay change the minds of those hide-bound people mentioned earlier. Noprice is listed as yet, but my guess isthat it will run about $2,300 to $2,400.

NEC also is making news with theirTC-100E, a CCD (charge -coupled de-vice) color video camera. Such CCDimage sensors are most likely the waveof the future and will replace tube -typecolor pickups when costs can bebrought down. The NEC CCD hasmore than 200,000 separate light -sensing elements packed onto a chipless than a centimeter square. TheCCD affords higher resolution (250 TVlines horizontally and 450 vertically), isrelatively insensitive to vibration, hasimproved color accuracy, and elimi-nates such things as color shifts, spotburning and "blooming." Of course,since the CCD obviates the need for apickup tube, the overall camera weightcan be reduced. In fact, the TC-100Eweighs just 5 pounds.

One of the biggest advantages ofthe CCD is its high sensitivity. Com-

bined with a fast, f/1.4 6 x power -zoomlens on the TC-100E, NEC claims it willrecord as low as 50 lux; in practicalterms, this means shooting indoors atnight under normal room lighting with-out supplementary lights. Still anotherplus is that there is instant-on-theCCD image sensor and the electronicviewfinder are activated one secondafter this camera is switched on.

Speaking of the viewfinder, the TC-100E's is a 1.5 -inch miniature CRT; it isdetachable from the camera and canbe used up to 19 feet away with anoptional extension cord. Other featuresof the TC-100E include an automaticwhite balance control and an automat-ic -iris exposure control. Audio is re-corded through an omnidirectionalelectret condensor microphone. TheCCD concept is an important advancein video camera technology, and theNEC TC-100E appears to incorporatea successful application of this newdevice. Price of the camera has notbeen established.

Video recording enthusiasts whosubscribe to a cable service and whohappen to prefer the Beta format willwelcome a new Betamax VCR fromSony. The Model SL -5101 is the firstBetamax VCR that is cable ready andpermits direct recording of nonscram-bled programs without a converterbox. However, its "105 -channel" tuneronly has the usual 14 preset tuning

0

40 AUDIO/JUNE 1983

LIGHTS 9 mg."tar", 0.8 mg. nicotine, LIGHTS 10 O's: 10 mg. 'tar",

0.8 mg. nicotine, ay. per cigaret e by FTC method.

Warning: The Surgeon General Has Determined

That Cigarette Smoking Es Dangerous to Your Hea th. lOos

C ISIS ICJ 111./1.0LOS TOIMCCO CO

AUDIO andVIDEO

ALL '.1TO PEBRi;NRDSIFeETHE

SDEALERS PAY

* SAME DAY SHIPPING* NO -LEMON GUARANTEE* NO DEPOSIT

CALL OR WRITE FOR OUR

FREE BOOKLET"ULTRA HI-FI DIGITALat HALF THE COST"

9-9 DAILY-TIL 5PM ON SATURDAY

1-301-488-9600

INTERNATIONAL HI-FIDISTRIBUTORS, INC.

MORAVIA CENTERINDUSTRIAL PARKBALTIMORE, MD.

21206

Enter No. 28 on Reader Service Card

FOR INFORMATION ANDORDERING (800)221-8180IN NEW YORK CALL(212)732-8600

DEALERS/INSTITUTIONALINQUIRIES CALL.(800)221-3191

MS MONTH'S SUPER SPECIALS!

AUDIO

RMINKS IA410 Receiver, 49M '199.951101111CSILO-30rtureadel

419.95

MUM Ili ourstable flIOLOS11011110 MOOS Cass OWO 6119.9S

TUSKS MOUSCasette Derlo .139.115

110MCSIONSOSS ram 0000 T103.95

MMUS PlAirtumtable MONO

PION= SX-303 ISSN ;worsen TONATS

ROOM MUM aumOdel f2119.95MUM Cri Cassese OsO0 ULUPOCOMISCTUR cassette Oecla flOOSSWON COCOS axeceNef /70INNUJ cor-fs cassette osoo flifTn

10-31 Caserre OWOSONY 81I-0033 Receiver/NOM .219.95SONY SUS100 rtumoDie *SUTUC Ufa Users De00 .3.19

TUC SOK Cassette 0100 . f149.95NIANIAKT7 9420 Wecelver/6SVAN2119.95WIMOJAND 1.4400

Veen., Antenna NUNSMOO= SW -

Micro Souks1 '+ MUSS okro-ROOM S-510 Fuw'149.951 oust

'WINE10Frway

O 00 IMO .1-SAASuCOOTIOSSICAATNicrSENINIONIN LIO100 microSONY MA 110.1 wcna

CARTRIDGESNUM V-15 TypeSHURE CUSHWA AMIN)STN110116811111 .PICIMUNG NSV-1/100

INUOLL UM I or Len CNUM MOS 1 cc WM. N C 90MAXUS SUS of SUISCOOYAW IOC-NO ..N II1M/0030 OKA1.111U9 SYSOTON SAC -80TM SP 090IDS st ONO Me VTOS O ONO

.41.95'an'ems'SOW

f129fSUISfsenMAIM'57.95

STEREO -TO -GO

SONY WINS (stores cawIR Cass Stereo. HUM

"" INC:110 =by. Gass Stereoe

'YO

.42 .UsA4 Fil.../Oss/Sten

SANYO MOM Val/RI/CisO SKISMSS NSJ-02 ONS/Cass/Stereonft0TOSOIM CFM/CasfSteretsTOSMA STS41 /FIA/CassMte,ONNASOMC RONSON

Cass stereo, MO .124.15

!SO

VIDEO GAMESCOLOCOVIIKO MAO CANN .171.10ATM VINO CANN ICS2600 N10.110

ATIVIS SRO CAM 10,5200#49.00MATTIS

Mill11111111011.VeCTIMN WOO CAMONTSSIFY, VOW WO 04-00COUCO CONSIION MOO 1 Allows use

at 07/1.1 games on ColecovIsionOSS.10c. 613[COMM ON 6 603MONS12000O. IONOATM 300'(00 MaATARI CO 06K RAM .2311.95Tuu ofonuunsTIN MO Mcfs.1)S

'44.95TIMM INCUR OK RANOMUMS MU. UN awn f349wimp K.150 w RAW 2011....118

MON Our Procenn PNA-41Cal ma cow montton RIM COMM natter Wary Awe()WM CORONA

uslIUSONIC TTONAIIIIIIt %NM

AUDIO TAPES.2.10 TOR C. CRS

RIM'2.79 TOR AD C-90

TIM.SAN TAI SUN°RI.0 TOR SA 55.160 El TARR In VIM4.47: 11211104.7locIr3 10.E1NOO

RIM IOW M C.90 SAMSINA FRI Or FRI C..91)

02.79

...MI YAP Pro 11.00OR 1..09:1 MAO

17 10710111RASUR I C.S0 .....

5% INSCOuNT ON soo oft MU AsSONIM TAM SWUM OMNI 12 TUNS I

NOW TO ORM IN NOW tOR Preagar NW COURTEOUSSHIPMENT. SE NO MONEY OMR.

cfrTuo CHECK CASHIERS CHECK MASTERCARD /VISA !VIA*CYO 45,109 0151100*

expeation date 0110 arena. 00 MOT04E06 MUST CLEAR OUR 901* TERVE MCCLUNG. 425Hanoi, ,osurarre Ouse 65% of Total Order WM a 7----rrilfmorn WE9i10

*00CONTINENTAL L., SALASNA,,KAWNI, PUERTO RICO, NO CANADA OM, GAMOW MAAS

Cga Via "'ND Z.25.0".4.12.1.°711A'Tr="ZIRgranr.AU. osioescal wino Num C. moonPEEN OM ittem cuestarao.

23 PARK MI, DEPT. A6, NYC, NY 10038MIND FOR FREE 240 PAGE AUDIO/VIDEO CATALOG

"American Audio's in -dashcar video system may raisesome eyebrows, but its TVscreen is inoperative whenthe car's ignition is on."

slots; the difference is that these canbe tuned to cable as well as broadcastchannels. The Express Tuning Systemcan be used to select any 14 channels,in any sequence, from VHF (channels2 through 13), UHF (14 through 83),cable midband (A through I), and ca-ble superband (J through W). With noconverter box required, it is possible torecord one nonscrambled programwhile watching another.

In other respects, the SL -5101 is likeits sister model, the SL -5100. It fea-tures front loading, a wireless infraredremote control, a 7-day/1-event pro-grammable timer, full -logic micro-processor controls, and 5 -hour record-ing capability. Additionally, the SL -5101 has extra audio and video lineinputs and outputs, and as an interest-ing extra, a PCM switch for use witheither of Sony's two digital processors.This new Betamax SL -5101 is priced at$669.95.

The next item may raise some eye-brows. American Audio Corporation ofSan Francisco has introduced whatthey claim is the "world's first in -dash

American Audio's ET-9000TV combinesTV with AM/FM radio and cassette.

car video system," their Model ET-9000TV. An in -dash TV set? The mindboggles, and recoils in horror at whathighway carnage could result fromsuch a device. Not to worry, folks. Thesystem is to be installed so that the TVscreen, though not the TV sound, isinoperative when the car ignitionswitch is on. However, if the system ismounted in the rear passenger sec-tion, the TV could operate while the caris moving.

Actually, the ET-9000TV is a veryelaborate entertainment package. Onone chassis is an auto -reverse stereocassette player, an electronic -tuningAM/FM/MPX radio, and, of course, the2 -inch monochrome TV, with all -chan-nel vernier VHF/UHF tuner and controlsfor contrast, brightness and vertical

Sony's cable -ready SL -5101 alsooffers 14 -channel Express Tuning.

hold. The cassette deck is controlledby microprocessor chip. The audiotuner has a digital frequency display,along with stereo tone and balancecontrols. There is a 25 -watt stereo am-plifier and even a digital quartz clock.

Although something like this mayhave limited appeal, it would furnish TVprograms when you are on a beach orat picnic grounds. If you want to be thefirst in your carpool with the ET-9000TV, it will set you back $1,495.

Finally, in the realm of the far-out,Telefunken has announced they willdemonstrate the first PCM receiver forDirect Satellite Broadcasting at The In-ternationale Funkausstelling to be heldin Berlin this September. It is claimedthe unit will have pushbutton selectionof 16 stereo programs, which can bereceived with "digital audio quality."The receiver will operate in the regionfrom southern Sweden to southern Ita-ly. I hope they are not going to short-change the U.S. Supposedly, AT&Tand CBS are still very hot on the idea ofDirect Satellite Broadcasting -maybeat the June 1984 Consumer Electron-ics Show? a

Flash: Video RecordingStandard Reached

It was announced in Tokyo onMarch 28th that approximately 120companies have agreed to usequarter -inch videocassette tape in thenext generation of VCRs and videocameras. Accord was reached onspecifications for audio- andvideocassettes, one specific methodof video recording, and the trackingmethod. It is expected that the newformat will not be offered toconsumers for at least a year, andthat the agreement will likely reducecompetition among the three currenthalf -inch tape formats of VHS, Beta,and V-2000.

42 AUDIO/JUNE 1983

Enter No. 29 on Reader Service Card

When you take one for a spin, -akeyour time. There's a lot this car wcnts totell you.

Pontiac 2000 is an energetic, state ofthe art, fiont-wheel-drive compact.

Its performance, fit and finish areimpressive, to say the least.

An overhead cam 4-cyl nder enginewith electronic fuel injection and a5-speec manual gearoox arestandard.

It's available in sedan, coupe,hatchback or wagon.

As you can see, Pontiac 2000 is quitegood looking. As you- test drive willprove, it's also fun to drive. Leisurely orbriskly.

And as your Pontiac dealer will showyou, it's very easy to own

What a car!

Some Pontiacs are equipped withengines prodJced by other GMdivisions, subsidiaries, or afillateacompanies worldwide See yourPontiac dealer for details.

AUDIO ETCEDWARD TATNALL CANBY

GEARING UPSoftgear. That's an emergency orad hoc name I'm using to coverall the input, for entertainment

and/or instruction, which goes into ourhardware, our hard gear, and therebycauses it to make noise and maybeproduce pictures. A big order and weneed a new name.

In times of really fundamental long-range change in, say, the things wedeal in (not trying to give them anyname!), the fundamental terms them-selves go haywire, right along with thestatus quo when it stops being "quo." Idon't think a lot of you out there reallybelieve it yet (because you haven'tseen or heard), but this is indeed sucha time. Terms get thrown about so fastyou can't keep up with them. We latchfrantically onto every tricky word thatcomes along and apply these as fastas we can to our own special baili-wicks, just to show how up-to-date weare. Software, my eye! I'm already sickand tired of calling things like Beetho-ven by the name of software. Makesme think of a soft-boiled egg. Better ahard nut for him (and a hard one tocrack for some of us) than a soft egg.

Besides, software increasingly be-longs to developing computer technol-ogy, where indeed it must have firstappeared. It goes legitimately withbits, addresses, bytes, nand and nor,and the rest of the new logic that buildsaround the technical instructions whichtell a computer, any sort, what to doand in what sequence with whatchecks and balances. That is the newand stable use of software as a term,and already it should not be mentionedelsewhere except in analogy-"likesoftware." Or if you wish, in metaphor,as the case may be. (Remember fromyour English class that an analogysays "like" something or "as," whereasa metaphor just calls it that.) Beetho-ven is like a soft-boiled egg? Thanks,but no.

True, we have a legitimate edge intoreal software, if you insist. Anythingfrom a phono stylus to a microphone,not to mention a digital signal, doesinstruct a computer for us if we have afew convenient chips located in ourfront ends. But this is splitting micro-hairs-what we really mean is the bodyof actual entertainment, or educationalinstruction, or what have you, that isrecorded or broadcast so that we may

consume it in our, er, homes (meaning,of course, our cars, RVs, boats, cycles,skates, beauty parlors, supermarkets,saunas, whirlpools-whatever hap-pened to the living room?).

You see what I mean. In times ofchange, terminology just bogs down,or boggles the mind. So-softgear.Strictly weaseling on my part, but atleast it sets ours apart from the legiti-mate computer world.

I am more and more taken up thesedays, in my mind, with this softgear.You might say I am even worried. Be-cause though we look very hard at ournew hardware and we are breaking ourworldwide necks to develop more of itevery day, we act as if softgear is justsoftgear and won't really matter verymuch, just so it's there. That's the wayeverybody acts, except one very vitalforce in business, the consumer, be-cause he doesn't know the differ-ence-yet.

Ha! The marketplace, as the market-ers call it. That's him & her. Ho! Theinventory, as the wholesalers mighthave it. That's also him & her. And thenthere is that magic, mystic term, sales.The very embodiment of him & her andwe never use it in the singular-a saleis something else again, but sales arejust the beginning of what really mat-

ters-USE. That, alas, is where thecookie so often crumbles . . . .

Hardware is a nice old term that wecan freely use since it long antedatescomputer science. For maybe a cou-ple of centuries it has been one ofthose curious one-sided designations,minus any opposite, which serve com-fortably, decade after decade, withoutcausing the slightest ripple of confu-sion. There were hardware stores (butno software) back in the pioneer days,along with dry goods emporia (no wetgoods), greengrocers (no white or redgrocers), blacksmiths (but, yes, white -smiths or tinsmiths), and more. If thecomputer people have appropriatedhardware for themselves, so may we.Leave the wet goods to the skin-divingand aqualung types, who really needthe term. Neither do we need grocer,nor smith, unless for that overworkedpersonality, the tunesmith. But hard-ware-yes. And softgear-yes.

Sorry, they do not match. But neitherdo binaural, for headphone listening,and stereo for two -eyed separate -photo photography, an exact analog.These should properly be binaural andbinocular, but there we get mixed upwith a prior usage for, shall I say, teles-copy, and a quite accurate one at that.In juggling our terminology we have to

44 AUDIO/JUNE 1983

l)1)1 I I -III I=II.

I. it.II (1ll :1 aA1 I P ;1 I i . i 11 , _A 1 CI I I I ri-

reaxehe ultimate

I XL I -Sferricand XL I

oxide-S +10

as -tteneered

tapes.0 bring

improvement

Precisionyou

/.--------""an

MOL (5% DISTORTION)-ng.igrificantynamic rar ge. -10X_

ionallyI -S

smoothprovides

Ii

excep-lea!' per-

aP.-

ormanceith high

characteristicsresolution of

w> -2°-......

XLII-S (EQ: 7011s)und and lower distortion.

ui-1

-40-XLI-S (EQ:120 ps)

XL tl-S hassaturation resis-

a DCLi- -50-

Wide.renter

in higher frequenciesing in '4n

8ance

,

esu e eignal to not r tio.

en -60-How id a hieve

1. 2 -70- AC BIAS NOISEim..WAALaxe I en

1

PARTICLES.ineers

.....------- ....-

have-80-P

i i i i 1,

1

aged t improve the 0.02i

0.05i

O.' 0FREQUENCY

2 0.5 1 2(kHz)

5 10 20itles

: ialused

mao

neboth

ic parti-tapes. So you get a better s g- Files. In the meantime, we

31

izatdevel

inpingss that

a crystal- nalresolution

to noiseof

ratio,sound

greaterand

suggestFor

youtechnical

listenspecifi

to t em.a-

ucproc

-s a mo e compact,pro-

higher output levels. tioi sheets on he XL. ..theraye on

ccbaltthe gamma

ferriteferric dynam

Of cOurse,c range

greaterisn't the

series,Auciophile

write to:Ale, V1 I

exid core, they've been only reasor to buy Maxell Corporation of Americ ,

:bizr-

to packdense

they and

particleswith

highmal

bias X_bias equivalent

II -S or ourXL

lor--S.

GC

chie,Oxford

NewDrive, MoonJersey 070

-4.

,!re.ter niformity on the

preciseBoth tapes

tapehave

travelmor-and

greatly -educed distortion I1 . XLIS=.112 __1,_!.._.

is increases max-. Poteon 70psE0

mumeduces

outputAC

levelbias

andnoise

levels.vou'l see both these maxell Aik90

hichhe

indynamic

turn expands improvementsdetail in future

coveredNidiophile

nxln"Nei RV' a 1 ..

,v,..-40ABQ _ t

/60 fpfirt.. rid CASSETTEMPROV.ORM,range.' i . 1 ':...1:1: :0 ORE

COBALTl ..11,.I\

-FERRITE LAYERSMOOTHERI PARTICLE SURFACE ENENRI#1: =C

1 m 4-

47F1AGAMIV-FERRIC OXIDEIT'S WORTH ITOATING THICKNESS: 10-11A (1A =1t 0,000,000 mm)

Enter No. 27 on Reader Se vice Card

on yourcounter...and welcome agreat newsales partner!We've got a plan to helpbuild your sales... and ours.

You're invited to join AUDIO'S RetailerSales Plan. Simply offer everyone'sfavorite audiophile magazine in ourhandy display rack and you:

chalk up 100% profit on everyissue sold.

build traffic as your customerscome back for issue afterissue of AUDIO.

generate more interest in theaccessories and equipmentyou carry.

make more sales now!

For details, write to us on your letterhead.Contact: Mary Lombardo

AUDIO1515 Broadway, New York, NY 10036

the perfect combination...The musical accuracy of Bryston components is arevelation. Every note emerges with perfect clar-ity from a background of silence, then vanishes.The progression of musical events seems real,tangible, almost visual in its presentation....

Bryston believes there is a need for referencestandards of musical accuracy. That is why wedesigned our Models 2B, 3B and 4B power ampli-fiers, and our Model 1B preamplifier. Their onlyreason for existing is to provide the most faithfulelectronic rendition of a musical signal possiblewithin the bounds of available technology. Writeto us and we'll tell you how we do it, and whereyou can listen to our perfect combination.

IN THE UNITED STATES:

L3i=crociAaVERMONTRFID1'14, Berlin, Montpelier, Vermont 05602

(802)223-6159

IN CANADA:

L:taocippo MARKETING LTD57 Westmore Dr., Rexdale Ont., Canada M9V 3Y6

(416)746-0300

take practical account of the competi-tion, linguistically speaking. Or the reg-ulations that apply. The ad peoplehave no trouble with all this-theysometimes just don't call it anything,and substitute adjectives. Those boxesyou see with RICHER, FLUFFIER,SMOOTHER on them and nothing else.Dodge a lot of problems in that fash-ion. But we haven't reached that stagequite yet.

You can look back and see how ter-minology has jumped the rails in manya past time of rapid change. What'syour field? Electronics? In times pastyour field was an expanse of agricul-tural land newly bounded in by fenc-ing, where once the land was openand unfettered for all the people. Thatwas a terrible time of change, particu-larly in England, and it wasn't that farback. Queen Elizabeth knew all aboutit. Revolution was in the air and therewas violence everywhere, as thefences went up. No wonder that, inchanged circumstances, "field" is stilla very strong term today and the skir-mishes around the fences still are plen-ty sharp. Right? You can even applythis to a magnetic field, which is bydefinition a matter of force, within anarea yet extending its influence out-wards....

If you think I am straying from thepoint, you are quite right; it is deliber-ate. If we ourselves are thrashingabout from hither to yon trying to de-cide what will be the big thing this yearand next and what shall we call it-then I figure my writing should accu-rately reflect that situation. A kind ofinternal drama, like the "smellies" weoften hear about (but never smell) orthe earthquake movie. These ap-proaches are not too farfetched.Awhile back I got a fancy catalog ofroses from a nursery; it took me quiteawhile to realize that the faint scent ofroses I kept noticing came from thepaper.

So the thing that we must under-stand about softgear is its extraordi-narily precise demands on us, the in-credible exactitude with which it mustbe shaped and honed to fit its ownhardware, if we are to profit by both.

Every tiny change in hardware, in itsshape, its parameters, the specs of itsperformance, its means of distribution,above all the way it operates in use,

46 AUDIO/JUNE 1983

Enter No. 14 on Reader Service Card

"In times of change,terminology just bogsdown, or boggles the mind.So, softgear-which at leastsets us apart from thecomputer world."

directly affects the softgear that willmake it go in the marketplace and inthe, er, home, such as home is. It's likethe environment. You kill off some itty-bitty fish in a little old stream and nextthing you know the lions and tigers inAfrica are dying and the dinosaurs areback. We all should be worrying aboutsoftw-whoops, I mean softgear-even more than the environmentalists,because this is our environment, it iswhat counts.

And yet-what do we see? Compati-bility is the name of our wishful think-ing! What do you do when you finallydevelop a videocassette, that is, ameans for recording and reproducingsignals in the video medium? You justhandily turn over your old stocks ofentertainment, which will do just fine.What happens when a compact digitalaudio disc comes along? Why whatelse-transfer the old recordingsstraight to the new medium and theproblem is no more. Compatibility, youbet. But viability? Does anyone trulyknow-yet?

Strange-so strange- that whereasthe audio disc has been a solid and attimes brilliant success for almost ahundred years, the videodisc, its pre-cise counterpart and with immense ad-vantages technically, and admirablefeatures (build a home library of enter-tainment, great classics, etc. at yourfinger tips . . .), is oddly sluggish anddoesn't seem to want to get started inany big way. While at the same timepeople keep right on buying that alter-native video product, the VCR, be-cause it works and has found itsplace-unforeseen as that may havebeen, at the beginning.

I've always suspected that, like theaudio cassette (a late but great start-er), the videocassette was a luckystrike, even if Sony, that clever outfit,may have had some sneaky and verycorrect ideas as to what it might dobest, back some 10 years ago. Youremember? The vast "TV cartridge"marathon involved six or seven revolu-tionary and wholly incompatible sys-tems, so great did the potential seemto be at that time-and every one dieda ghastly corporate death, to the tuneof literally billions in losses, except therelatively old-fashioned tape videocas-sette, an adaptation of professionalvideo recording already in existence,

Revox B791The Straight Line on Precision Engineering

First, a few words about our straight line tracking system - Lina-track®. Under the guidance of a sensitive infrared -interrupt servo circuit,Linatrack® guides the ultra -short (13/4" long) low mass tonearm straightacross the radius of the disc, thus eliminating tracking error. Linatrack®mounts most popular cartridges, and the entire tonearm module swingsaside for quick record changing.

Next, the heart of the 8791: precision engineering. A quartz -regulated Hall -effect direct -drive motor assures absolute speed sta-bility with no cogging effects. Even the vari-speed is quartz -locked,with an LED display to show the nom nal speed and exact percentageof deviation.

The Revox B791 issolid, substantial, and

meticulously assem-bled. It is designed for

maximum user conven-ience, sonic accuracy,

and exceptional longev-ity. It is not inexpensive.

That's thestraight line. Hear

the full sound atyour nearest

Revox dealer.

1425 Elm Hill Pike, Nashville, TN 37210 / (615) 254-5651

Enter No. 24 on Reader Service Card

McIntoshSTEREO CATALOG

and FM DIRECTORYGet a I the newest and latest information on the newMcIntosh stereo equipment in the McIntosh catalog. Inaddition you will receive an FM station directory thatcovers all of North America.

SEND

TODAY!

McIntosh Laboratory Inc.East Side Station P.O. Box 96Binghamton, N.Y. 13904-0096

NAME

ADDRESS

CITY

A

STATE ZIP

1

AUDIO/JUNE 1983 47

If you are in a hurry for your catalog please send the coupon to McIntosh.For non rush service send the Reader Service Card to the magazine.

Enter No. 40 on Reader Service Card

"Every tiny change inhardware, in its shape, itsparameters, etc. directlyaffects the softgear thatwill make it go in themarketplace."

the least revolutionary of all the sys-tems and, you might say, the tamest.Of course! It took off because sudden-ly there was an absolutely unforeseenarea of softgear that the others hadn'tthought about. You recorded right offyour TV, and you didn't do it to build upa grrreat classic library but mainly so

you could look at it later on and erase itwhen you felt like something else. If I

dare say so, even CBS didn't think ofthat, with its admirable EVR video sys-tem, which could not record.

What we must do with our new hard-ware, our new systems, is to probe andfeel and experiment, gingerly, careful -

A LASER MONITOR FORTHE PRIVILEGED FEW.The new Celestion SL -6 is

like no other loudspeaker inthe world.

Designed with a laser, a com-puter and a blank sheet ofpaper by a new generation o::'engineering talent, it began withsomething never seen before.The microscopic vibrations ofdrivers in action, frozen in time.Scanned in exquis-ite three-dimensional detail bythe laser -computer system wecall ULTRA' *

With the knowledge ULTRAgave us, we could discard themisconceptions and guesswork ofconventional speaker design.The results: Two radicallydifferent transducers withprecise, perfect -piston re-sponse. A crossovernetwork of uniquesimplicity, becausethe drivers areso perfectlymatched. And anenclosure of incrediblerigidity.

What's more, the SL -6 is thnfirst compact loudspeaker ofstudio monitor quality. Smallerthan many "bookshelf" units,

Conventional driverULTRA scan of

distortion -producing breakupnever before visible.

-;:;',4444.41kvit\te-*t- 19,

yet effortlessly handling up to200 watts per channel.

There is much more to tell.But the most eloquent way tohear it is musically, from theSL -6 itself.

SL -6 driver

Perfect -piston motion:the new SL -6 tweeter,

vibrating at 15kHz.

But first, a word of caution:only a limited number areplanned for production. Whichmeans its pleasures are limitedto a privileged few. That selectgroup of music lovers with thesensory and, yes, the financialresources to appreciate it. If theidea of being among them in-trigues you, write or call formore information.*Ultra -accurateLaser TopographResponse Anafri,

celesfion E4 speakersAND PROFESSIONAL DRIVERS.

You'll know...in an instantCelestion Industries, Inc., Kuniholm Drive, Box 521. Holliston, MA 01746 (617) 429-6706, In Canada. Rocelco, Toronto

ly, until we begin to sense an area forsoftgear breakthrough. If we have anysense, that is how we go at it. Compati-bility-just use the old softgear all overagain? That is merely a temporary littlebridge, useful for a time, which givesus leeway to work on the far side-likethose wooden planks and ramps theyput down for pedestrians when a newbuilding is going up. Yes, you canthrow in all the old (and new) softgearyou have on hand, compatibly, and forawhile everybody is happy. But not forlong. Never for very long.

If you do not find the key to the newsoftgear demands, and satisfy thosechanged demands, you are a deadduck. Speaking of ducks, it is like clos-ing your eyes and shooting a shotgunblast in the general direction of a flockof those birds. You are bound to hit atleast a few, though which ones youcannot know-and, just maybe, one ofthese will turn out to be the duck thatlays the golden egg.

Indeed, the contours of a successfulsoftgear are astonishingly subtle,it is agony to look ahead and try to seetheir future shape. Practically nobodyever does. Most success is acciden-tal-with a few remarkable exceptionsand those almost always on the artisticside. Those early film producers andactors, for instance, who understoodthe power of the silent film and themeans whereby it could convey senseeven without sound. And again someof the same-Buster Keaton, HaroldLloyd, Chaplin-who sensed furtherthat this medium needed longer films,not only funnier but deeper, more in-volving. Can you credit this to engi-neering or to business? It was the non-technical minds who saw ahead,though they were intimate with thehardware aspect, knew exactly what itcould do and, more important, what itmight do.

The true engineers make thesethings possible and they work towardsstill better hardware in the indicateddirections. But, after all, Edison invent-ed only a dictating machine, not a pho-nograph. And a moving picture, not afilm. It is the softgear, every time, thatdoes it. Right now, I can't see we'rethinking beyond the compatible bridgein any of our directions.

Well, give us time. Long rows to hoein a very big field. A

Enter No. 16 on Reader Service Card48 AUDIO/JUNE 1983

:..4)NAGACKA

NO DIRT.NO LINT.NO TEARING.NO SCRATCHING.NOTHING.

14 Von Zant St /Norwalk, Coonectocut 06855.203-853-979:/Telex 6.3075 I INC Nu(

Serious record collectors<now that -the inner sleeves pro-dded with moot records often dodamage rathe- than offer protec-- or. They disintegrate over time,gereratinc and depositing lint on-ecord suriloces. They createvotic, which causes "clicks and30p" in act:titian to attractingdust like a -nagnet.

In sh3rt, paper innersleeves are good for one thing -ltrowing away.

Nagaokc No. 102Anti -static Record Sleeves are the31,_ re way b keep your records-rvirt Eachsleewe is subjected to3 special satic preventiono-acess and therefore is notst.sceptibleto he generation of-got c electricity created by the=riction between the record and-he sleeve iselil.

Erter No 23 on Reader Service Card

Nagaoka Ant -static Wco-dSleeves will not aezriorate overtime and -therefore cannot sc-atchvaluaole reccrdswth self -generated dust.

Nagaoka Ant -static lk-codSleeves cre des cried to las-forthe life of your r-crds-a 'ifewhich wi I be greoty extendedthrougn her Jee.

Japan lead! the worlc inthe production of equir_.-ment Ncgooto leads Japan inthe production of cccessories.

-ow wi I Nocooka fa -e itthe Un tei Steles' One things forsure: ne a ict star -ing fromscratch.

N AGAO KATake Care.

SIGNALS & NOISE

Cover CompetitionDear Editor.

Couldn't help but notice your March1983 cover reference to the NAD 4150tuner, "Better Than Carver's?"

Well, I'm happy that you hold mytuner as the benchmark, worldwidegold standard of tuners against whichall others are judged, but also couldn'thelp but notice that the cover questionwent unanswered inside the magazine.I've had lots of phone calls about this.So, to help me and to serve the read-ers of Audio, let's take a look.

Len Feldman tested both tuners andmeasured the data as reported in Au-dio. The data presented in the accom-panying chart includes everything thatwas reported for both tuners.

Inspection of Len Feldman's test re-sults shows that the Carver TX -11 isbetter (with eight wins, four losses, andtwo ties) than the NAD 4150 (with fourwins, eight losses, and two ties).

But the reality is that my chart ofLen's numbers proves only one thing:Both tuners are state-of-the-art. Exceptfor one very important exception-thesingle reason that I invented my spe-cial circuits. And that reason is relatedto only a single number. Look at the 50dB stereo quieting sensitivity: NAD,25.0 1LV versus Carver, 6.9 p.V. It is thisnumber that defines, more than anyother, what my tuner is all about.

Inspect Len Feldman's quieting anddistortion graphs for the NAD 4150(from the March 1983 issue) againstthose for the Carver TX -11 (December1982 issue). They are virtually identi-cal, i.e., they are both superb. But wait!As soon as one pushes, in Len Feld-

NAD 4150 tuner, FM mono and stereoquieting and distortion characteristics.

Carver TX -11 tuner, FM mono andstereo quieting and distortioncharacteristics, wide -band mode,without use of special circuits.

Carver TX -11, stereo quieting anddistortion, wide -band mode, withnoise- and multipath-reduction circuitsactivated.

SpecificationFifty -dB Quieting, StereoSensitivity, MonoS/N, MonoS/N, StereoTHD, 1 kHz, MonoTHD, 1 kHz, StereoFrequency Response DeviationSeparation at 65 dBf

Mid -BandExtremes

19- & 38 -kHz RejectionSelectivityAM RejectionSpurious, I.f., Image RejectionCapture Ratio

NAD 4150 Carver TX -1125 p..\/ 6.89 j.LV BEST1.2 µV BEST 2.05 µV82 dB BEST 80 dB75 dB 75 dB TIE0.04% 0.032% BEST0.08% 0.06% BEST-0.1 dB BEST -2 dB

51 dB 52 dB BEST49 dB BEST 42 dB71 dB >75 dB BEST79 dB 88 dB BEST70 dB a100 dB BESTa100 dB a100 dB TIE1.5 dB 1.0 dB BEST

man's words, "those two magic but-tons" on my tuner, an amazing thinghappens! Next look at Len's quietingand distortion curves for the TX -11 withthe magic buttons pushed in. Thenoise dropped 20 dB at 25 dBf! That's10 times less noise! And 10 times morestation pulling power. And five timesless multipath-induced interference.

That's what my tuner is all about. Noother tuner in the whole wide worldeven comes close.

In closing, I wish to complimentLarry Shotz, a very talented and disci-plined designer, for his excellent workon the NAD tuner-and for that, mysincerest admiration.

Bob CarverPresident, Carver Corp.

Woodinville, Wash.

Satellite to AudioDear Editor:

Thank you for the article "WFMT:Satellite Superstation" which appearedin your February 1983 issue. It madevery interesting reading for those of uswho are involved in satellite audio.

One correction I would like to makeconcerns the list of other satellite audioservices which are piggybacked withWGN-TV. While it is true that theMoody Bible Institute of Chicago oper-ates an audio service by this means, itis not radio station WMBI-FM, but rath-er the Moody Broadcasting Network(MBN) which is distributed via satelliteto affiliate radio stations and cable sys-tems. MBN is a long -form, national pro-gram service which can be segmentedfor local radio service use. There is noreference to local news, weather, etc.on MBN.

Wayne ShepherdSatellite Program Manager

Moody Broadcasting NetworkChicago, III.

Will the Real SuperstationPlease Stand Up?Dear Editor:

I wish to bring to your attention twominor errors in a basically excellentarticle regarding WFMT in your Febru-ary 1983 issue.

The first error is listing KTVU in Oak-land as being the third superstationcarried via satellite. While it's true thatKTVU had been called a superstation,it has not been on satellite for over a

50 AUDIO/JUNE 1983

Will KEF's new Standard SeriesLoudspeakers meet the standards

of the British Hi-Fi reviewers?

Here's what the British Hi-Fi press saidabout the original Standard Series:

CARLTON

"As we have come to expect from KEF, theconstruction and finish are exemplary."

"...very precise and detailed... quite gooddepth discrimination:'

"...output well in excess of what peoplewould tolerate in their home!"

"This well made and most reasonablypriced loudspeaker offers very goodperformance, with minimal coloration,good efficiency and excellent powerhandling. Clearly, it earns a definiterecommendation:'

HI-FI NEWS & RECORD REVIEW1982

"Sensitivity noticeably above average ...bass performance easily the best we haveheard from the models in this group(Standard Series) ... well worthauditioning as a possible upgradeinvestment for a medium-priced audiosystem:'

GRAMOPHONENovember, 1981

CODA

"It looks like you're getting a lot for yourmoney, and looks don't deceive in thiscase:'

"The Coda is very, very good. Far better infact than its price tag would suggest:'

"... a very solid and life -like representationof the signal it's presented with:'

"The Coda is a remarkably articulate,musical loudspeaker. Developed and

Enter No. 38 on Reader Service Card

musically refined far beyond its pricelevel, it can only be stronglyrecommended!'

PRACTICAL HI-FIJanuary, 1982

"The Coda has a very good performance,which many vastly more expensivespeakers might envy"

HI-FI NEWS & RECORD REVIEWDecember, 1982

"...a good match for any domesticamplifier at this budget end of the market;a very pleasing design which looks like agenuine bargain:'

GRAMOPHONENovember; 1982

Hear the new, significantly improvedStandard Series today at your KEF dealerand judge for yourself:

$750 A PAIR

The Speaker Engineers

For people with higher standards.KEF, 425 Sherman Avenue, Palo Alto. California 94306

year. Actually, the third superstation isWOR-TV from New York City.

The second error concerns the num-ber of transponders the author statesare in the Satcom satellites. The cor-rect figure is 24, not 12. The originalWestern Union (Westar) satellites hadonly 12, and RCA does designate theirtransponders as broadcasting 12 verti-cal and 12 horizontal modes-but theseries of RCA Satcom satellites havehad and will have 24 transponders.

Melvyn E. ShlankOrange, Conn.

Igor, Come Here!Dear Editor:

In these uncertain times, when stan-dards have come to mean so little andbrand names have come to stand onlyfor high prices, not quality, it has beencomforting to know that one man andone line of components have made astand for quality and fidelity, much as abeacon of light cuts through the dark-ness. Yes! Professor I. Lirpa hasshown us the way. But if Audio is not tocover the achievements of this inven-tive genius, then surely all is lost. Foryears I have counted on Audio's cover-age of Prof. Lirpa's unique and unsur-passed equipment. His shower micro-phone has proved to give the cleanestsound available. Lirpa's 5 -kg tonearmhas been shown to be the undisputedmaster of the warped disc, and anyother disc with which it should happento come in contact. How can Audio callitself the authoritative publication whileleaving out the one man and one line ofcomponents worthy of our continuedadmiration? The world will little note norlong remember what Audio says, butthe words and deeds of Prof. Lirpa willlive forever, or at least until tax time,whichever comes first. Bring back Prof.Lirpa! Such remarkable genius as hismust not be hidden in some small, notquite inconspicuous classified ad(April 1982, pg. 76). Return him to hisrightful full -page editorial glory, wherehe and his talents can be exposed forwhat they truly are.

Ms. April FieldsdayMiami, Fla.

Editor's Note: Lirpa has not lapsed.The Professor spent considerable timedeveloping the ultimate one -brandsystem, which was subject to our care-ful scrutiny in the April issue.-E.P.

Whereto reserve

seventh row,center

Fbrever.ARIZONAAudio Emporium-TucsonHiFi Sales Company-MesaARKANSASWalloch's-Little RockCALIFORNIAAudio Services-North HollywoodEber Electronics-San FranciscoHouse of Music-San FranciscoPacific Stereo-Los AngelesPacific Stereo-San DiegoPacific Stereo-BerkeleyParis Audio-Santa MonicaRoger Sound Labs-Van NuysSherman Oaks Camera-

Sherman OaksThe Good Guys-San FranciscoTokyo Electronics-San FranciscoCONNECTICUTTake Five Audio-New HavenCOLORADOListen Up-DenverFLORIDAHoyt HiFi-JacksonvilleMarc's Electronics-MelbourneSound Advice-MiamiSound Components-Coral GablesGEORGIABack Door Stereo-AtlantaILLINOISAudio Dimensions-MolineAudio Enterprises-Chicago HeightsGood Vibes Sound-ChampaignMills Recording-ChicagoPacific Stereo-ChicagoPaul Heath Audio-ChicagoStereo Systems-AuroraUnited Audio-ChicagoIOWAThe Audio Room-Cedar RapidsKANSASRed Baron's Entertainment

Center-WichitaKENTUCKYStereo Shoppe-LexingtonLOUISIANAAlterman Audio-New OrleansMAINENew England Music-PortlandMARYLANDAudio Buys-GaithersbergGramaphone Ltd.-BaltimoreHigh Fidelity Center-BaltimoreProfessional Products-BethesdaMASSACHUSETTSAudio Studio Stereo Lab-BrooklineHiFi Listening Shop-MarlboroQ Audio-CambridgeSound & Music-NorthamptonMICHIGANPeerless Electronics-DetroitStereo Shoppe-LansingMINNESOTASound Center-MinneapolisMISSOURISound Enterprise Stereo-

Kansas City

MONTANARocky Mountain HiFi-Great FallsNEBRASKAStereo West-OmahaNEVADAQ Audio-RenoThe Upper Ear-Las VegasNEW JERSEYThe Audio Lab-New BrunswickNEW YORKCharos Custom Sound-SouthamptonGordon Electronics-SyracuseGrand Central Radio-NYCLyric HiFi-NYC/White PlainsPark Avenue Audio-NYCSound Chamber-RochesterStereo Chamber-BuffaloNORTH CAROLINASound Ideas-RaleighOHIOGolden Gramaphone-AkronPhil Reddish Audio-ClevelandStereo Lab-Cincinnati/ColumbusOKLAHOMAThe Turntable-EnidOREGONChelsea Audio-BeavertonFred's Sound of Music- GreschamPENNSYLVANIAChestnut Hill Audio-PhiladelphiaD.S. Audio-West ReadingOpus One-PittsburghSassafras Audio-MontgomeryvilleStereo Barn-EphrataThe Sound Store-PittsburghSOUTH CAROLINARead Brothers-CharlestonTENNESSEEAudio Systems-NashvilleSound Concepts-Johnson CityTEXASElectronic Service Center-OdessaMarvin's Electronics-Ft. WorthPacific Stereo-DallasPacific Stereo-HoustonRecorder Center-DallasSheffield Audio-HoustonSound Climax-DallasStereo International-San AntonioUTAHHiFi Shop-OgdenStandard Audio-Salt Lake CityVIRGINIAAudio Center-RoanokeSound World-Virginia BeachWASHINGTONMagnolia HiFi-SeattlePacific Stereo-SeattleWEST VIRGINIASound Investments-MorgantownWISCONSINAmerican TV-MadisonSound Stage-MilwaukeeSpecialized Sound System-Madison

SONY52 AUDIO/JUNE 1983 THE ONE AND ONLY

Enter No. 10 on Reader Service Card

III lull

I'IIInlilllllllli+llq','.'11 h11 711

lipliv7g wow

11 I I twimit fit iIIiilllum I mil I 110110111 1111111111111111fla'111 I !

Sony creates seventh row, center. Forever.INTRODUCING THE SONY COMPACT

DISC PLAYER.The inventor of digital audio pro-

cessing is pleased to raise the curtainon the CDP-101. Hailed by the discrim-inating ears at High Fidelity as "themost fundamental change in audio tech-nology in more than eighty years."

There are compelling reasons forsuch applause.

The CDP-101, based on the world'sfirst compact disc system co -developedby Sony and Philips of Holland, offersconcert -hall freedom from distortion,wow, flutter, and other sonic gremlins.Plus an awesome dynamic rangeexceeding 90dB. To bring you the full

beauty of Mahler or the Moody Bluesas never before.

This highest of fidelity remainsfaithful, too. Because the digital discsare read by laser beam, there'snone of the physical wear inevitablewith tape or vinyl. While the CDP-101ingeniously ignores scratches,dust, and fingerprints.

Equally ingenious, an infra-red remote control even lets youselect tracks without budgingfrom your armchair. Yet for all itssophistication, the CDP-101 isthoroughly compatible with what-ever sound system you now own.

We suggest you hear the CDP-101

soon. For a sound you can't believe,from the audio innovator you assuredlycan. SONY

THE ONE AND ONLY

© 1983 Sony Corp. of America. Sony is a registered trademark of the Sony Corp. 1 Sony Drive, Park Ridge, New Jersey 07656.

You Dont BecomeA Digital Audio

Expert Overnight.Most of the companies now introducing

digital audio players were just recently intro-duced to digital audio themselves.

Such is not the case with Mitsubishi.We've been at the leading edge of digital

audio research since the early 70's, when ourinvolvement in satellite communication equip-ment and computers showed that pulse -codedmodulation would bring about a revolution inrecorded music.

1972 Mitsubishi oegins pioneering111111Fresearch in digital audio recording,

culminating in this, our latest 32 -channel ALM,professional recorder.

1983 Mitsubishi introduces :tsdigital audio player for the consumer

Our technological focus back then was onprofessional recorders, which could immedi-ately apply the superiority of digital sound tothe recording of conventional analog records.

The 32 -channel X-800 model shown(rear) is the most sophisticated audio recorderever engineered. Taking over where the lastgeneration of analog recorders left off.

And now the digital sound revolution hascome full circle, from our pioneering work indigital tape recording to our new digital discplayer. Taking over where the last generationof analog record players left off.

INTRODUCING THE MITSUBISHIDIGITAL AUDIO DISC PLAYER.

Analog record players attempt, with varyingsuccess, to play back a mechanical, physicallikeness of the music's continuously changingwaveforms in grooves on the record.

The Mitsubishi DP -101 digital disc playerdoes the infinitely more exacting job of read-ing music that has been digitally encoded inmicroscopic "pits" on a Compact Disc.

The code represents over 44,000 measure-ments a second of the musical waveforms.The pits, and their dimensions, represent thedigital data.

The beam from the laser diode (A) is reflected off beam splitter(B) and focused through objective lens (C) to read the pit (D) on

the disc, and returns with the encoded music information throughthe lens and beam splitter into the photo -detectors (E).

The music encoded in the pits is read, notby a mechanical stylus, but by a laser beam.This allows for a reproduction accuracy thatthe stylus, restricted by the laws of physics,cant match.

It's this esoteric laser technology that is the

heart of the system, and Mitsubishi's longexperience in semiconductor lasers for fiber -optical communications enables us to maxi-mize performance of this key element to ourown rigorous standards.

HEAR NOTHING. AND EVERYTHING.

Nothing bad. No noise, no wow, no flutter,no rumble. No pops, clicks or surface noise.

Everything good. From complete silence,the music emerges in its full power and range,every detail etched in great relief. Music utterlyuncompromised by the undesirable.

Nothing ever sounded so good before.Digital Audio Disc Player

-30_40_50_50- 70-

-8044,04414,441.441,41960948.- 90

- ,00

100 1k 2k 3k 4k 5k 6k 7k Bk

Frequency Hz)OdB lkHz Peak level

9k 10k

t203 40

50- 80- 70

_- 90

- 180100 1k

Conventional Record Player

/ nd Harmonicf Hn,onic/3rd

2k 3k 4k 5k 8k 7k 8k 9k 10k

Frequency (Hz)OdB -I kHz 50mm/sec.

Better sound is easy to see.

As if to validate the evidence of your ears,the specs are spectacular.

Distortion, as shown, 0.008% (comparedto analog's 0.5 to 1.5%). Dynamic range, 90 dB(compared to 60-70 dB). Channel separation80 to 90 dB (clearly separate from analog's20-50). And an exquisitely flat frequencyresponse within 0.5 dB from 2Hz to 20kHz.

Yet this astonishingly complex machineis easier to operate than an audio tape cassetteplayer.

It features a full -function remote controlunit. And extensive programming controlsenable you to play any part of the disc, in anysequence you choose. No other digital playerwe know of can offer you more flexibility.

Nor can they offer you the unique featurelocated just below those programming controls.One that insures the excellence of all thatlies within.

It's stamped into the metal.The name Mitsubishi.

AMITSUBISHIEven If You Can't Have The Best Of Everything,

You Can HaveThe Best Of Something.Mitsubishi Electric Sales America, Incorporated, 3030 Victoria Street, Rancho Dominguez. California 90221. Specifications are subject to change without notice.

Enter No. 33 on Reader Service Card

by LEONARD FELDMANPhotograph by ROBERT LEWIS

High -end audio holds a very spe-cial place in Japan and constitutes alarger percentage o' the market thanit does in this country. While someU.S.-made gear is very hot there,Japanese manufacturers often con-sider this area to be one where theirprestige is at stake. A fair amount ofthis Japanese -produced high -endgear never makes it to the States;when it does, many of these "all out"products reach suostantially fewerdealers. It is also a3parent that dif-ferent design approaches are used

in these state-of-the-art attempts. fordifferent and much less cost-effec-tive features are often found in them.Indeed, such products are some-times highly impractical for massproduction since they embody de-sign phi'osophies radically differentfrom thcse found in mid -level gear.This is not merely because of com-bining sophisticated designs withrelatively small sales. Why put 150pounds of sand -casting and 20 coatsof hand -rubbed lacquer into a torn -table with a production run of 100?

The answer I've always received is,"That's what we thought was neededto make it corectly." Whatever yourfeelings about this approach to hi-fimanufacture, roe think it deservesthis closer look.-E.P.

ost large Japanese manu-facturers of audio equip-ment have a few high -end,

high-performance products whichhave been designed without regardto price or number of units that areexpected to be sold. Call them "im-

ony's specs on THD and IM distortionare more conservative than Denon's,

but both test much better than claims.

Denon PRA -6000 preamplifier and POA 8000 power amps

age builders," "showpieces" or what-ever you like, these no -holds -barredproducts represent the closest thing totrue state-of-the-art and perfection thatthe top engineers of these companiesare able to create. Analogies with othercategories of equipment (such as mo-tor cars or sailboats) generally aren'tapplicable when it comes to these top -of -the -line audio products, althoughone statement often attributed to yachtand Rolls Royce salesmen does applyhere, "If you have to ask how much itcosts, you can't afford it!"

The Editor of Audio and I decidedthat it might be interesting (and a greatdeal of fun, besides) to pit one suchtop system against another; not somuch for the purpose of coming upwith a clear sonic "winner," but ratherto present the points of view of two topdesign teams and to explore the differ-ences in philosophy inherent in the de-signs of two obviously superior audioelectronics systems. We chose forthese comparisons Denon's top stereopreamplifier, Model PRA -6000, operat-ing with a pair of Denon POA-8000monaural power amplifiers as one ofthe systems. The other system consist-ed of a Sony TA -E900 stereo preampli-fier and a pair of Sony TA -N900 mon-aural power amplifiers, all three ofwhich are part of Sony's "Esprit" line ofaudio components.

Denon Preamplifier LayoutThe PRA -6000 preamplifier/control

unit's dark front panel is elegantly off-set by a pair of gold -colored metal endblocks, tapered to form a pleasingframe for the unit. Only the most -often -used controls are normally visible andaccessible. These include the poweron/off switch, seven program selectorpushbutton switches with indicatorlights above them, a muting on/offswitch, a master volume control, and asmall pushbutton which releases adoor on the lower portion of the panel,exposing the remaining controls. Whenthis last button is pushed, the door notonly opens, but slides under the chas-sis, out of view. Program sources acti-vated by the pushbutton selectors in-clude "Phono-1" (MC or MM), "Phono-2" (MM), "Phono-3" (MC), "Tuner,""DAD," and "AUX." The "DAD" input isdesigned for connection of a digitalaudio disc player and is able to handlethe extremes of dynamic range inher-ent in that program source.

Secondary controls normally hiddenby the lower door on the panel includea treble and bass control, a tone con-trol turnover switch (which selects vari-ous turnover -frequency combinationsof 125 and 500 Hz for bass and 2 and8 kHz for treble), a record -out selector,a "Tape Monitor" switch, a "Preset"priority switch (needed, due to the

electronic input switching, to selectwhich program source will switch inwhen power is first applied), a "Sub-sonic Filter" switch with settings for 16 -or 20 -Hz cutoff, and a channel "Bal-ance" control. The "Rec Out" selectorhas settings for "Source," "Copy Tape -

1 to 2" and "Copy Tape -2 to 1." Whenin the off position, the tape -out jacksare disconnected from the circuit com-pletely, even if tape decks are pluggedin. The "Tape Monitor" switch has set-tings for "Source," "Tape -1" or "Tape -2." It is interesting to note that whilemany high -end preamplifiers (includ-ing the Sony unit which will be de-scribed shortly) do not include tonecontrols of any sort, Denon has notonly included bass and treble controls,but has incorporated a rather elabo-rate turnover control to go along withthem.

The rear panel of the Denon PRA -6000 has the usual array of input andoutput jacks, two grounding terminals,and three switched and two un-switched a.c. outlets. Two sets of outputjacks are wired in parallel, should youwish to feed signals to more than theusual pair of power amplifier channels.Of particular interest is a slide switchwhich converts the "Phono-1" inputsfrom MM to MC. With three separatesets of phono inputs, a user could con-ceivably hook up two MM cartridgesplus an MC cartridge or two MC car-tridges plus an MM pickup. All of this,of course, in addition to the connectionfacilities for a Compact Disc player.

Sony Preamplifier LayoutThe Sony TA -E900 is configured for

standard 19 -inch rack mounting. Be-low its power on/off switch is a stereoheadphone jack, allowing you to listento program sources via headphoneseven if you don't own the companionpower amplifiers and appropriate loud-speakers. A large, calibrated knob ad-justs master volume of the system, andthe "Output Selector" alongside se-lects headphone or either or both ofthe output pairs on the rear panel, ordisables output altogether. This switchtherefore enables you to feed either orboth of two power amplifiers connect-ed to the preamp. A stereo "Balance"control comes next, and to its right is a"Mode" switch with mono and stereosettings. A tape "Monitor" switch se -

58 AUDIO/JUNE 1983

lects "Source," "Tape 1" or "Tape 2.A "Low Filter" switch, operable onlywhen in the "Phono" selection mode, islocated near the two-part program -se-lection system. A three -position toggleswitch selects "Phono," "AUX" or"Tuner." When this switch is in the"Phono" position, a secondary rotaryswitch is used to choose "Phono 1" or"Phono 2" inputs and to decide wheth-er or not either of these inputs shall berouted through a pre-preamp for mov-ing -coil signal amplification. Cartridgeload resistance and capacitance forthe "Phono 2" inputs can be varied(25/50/100 ohms or 100/200/400 pF)by two small switches at the lower rightcorner of the front panel.

Instead of the usual connectionjacks on the rear panel, designers ofthe TA -E900 elected to have input andoutput jacks accessible from thepreamp's top surface, so that the jacksmount directly to the epoxy -encapsu-lated p.c. board, eliminating internalsignal cables. The jack panel surfaceis recessed below the top of the unit,so cables running out to the back areactually below the top surface, permit-ting you to mount another componentabove the preamp without crushing thecables. Two convenience a.c. outletsare found on the rear panel. Each ofthe outlets (switched and unswitched)is rated at 450 watts.

Denon Power Amplifier LayoutThe Denon POA-8000 monaural am-

plifiers feature the same tapered, gold -color metal ends as the PRA -6000 pre-amplifier. The black front panel is dom-inated by a huge meter section, cali-brated in dB and watts, with fast -actingmeter movement displaying peak pow-er levels. An LED illuminates when rat-ed ouput is exceeded. Two additionalindicator lights near the lower right ofthe panel illuminate when power is ap-plied and when a subsonic filter switch(on the rear panel) is turned on. Aspeaker selector switch and a meterillumination on/off switch are also locat-ed in this region of the panel. A digitaldisplay located at the lower left, nearthe power switch, serves three pur-poses: It counts down after turn -on,from 7 to 1, after which muting isturned off and amplifier operation be-gins; it shows which speaker has beenselected, and it displays various alpha -

Sony Esprit TA -E900 preamplifier

Sony TA -N900 power amps

numeric codes when trouble occurs inthe amplifier (e.g., "E-3" means troublein the main amplification circuit, "E-0"means temperature inside the unit isexcessive, etc.).

Facilities on the rear panel includean input jack, an input level control, asubsonic filter on/off switch, a ground-ing terminal, and two pairs of speakerterminals. Covers or caps are providedfor the speaker terminals after connec-tions have been made, since the volt-age corresponding to 320 -watts output(the "music power" or "peak power"rating of this amplifier) is enough togive you a hefty electrical shock if youhappen to touch the terminals whilemaximum power is being delivered.

Sony Power Amplifier LayoutThe only control on the rack -mount -

sized front panel of the Sony Esprit TA -N900 amplifier is a power on/off switch,augmented by a power -on indicatorlight. The rear panel is equipped with aground terminal, two input terminals(one of which is for direct d.c. con-nection, while the other includes anisolating input coupling capacitor), apair of loudspeaker terminals, and aloudspeaker impedance switch withsettirgs for 2-, 4-, or 8/16 -ohm speak-er systems. A built-in cooling fanexhausts internally generated heatvia a ventilation grid occupying abouthalf the width of the TA-N900's rearpanel.

AUDIO/JUNE 1983 59

While some will choose the Sonyampsfor their light weight and small size,

some will prefer the look of the Denons.MANUFACTURER'S SPECIFICATIONS

PREAMPLIFIERSSpecification Denon PRA -6000 Sony TA -E900Frequency Response

MM PhonoMC PhonoHigh Level

Phono Overload at 1 kHz,MIVI/MC

Harmonic DistortionIM DistortionRated OutputInput Sensitivity

Phono, MM MCHigh Level

S,N RatioPhono, MM/MCHigh Level

Low -Filter Response

Tone Control Turnovers

Tone Control Range,20 Hz to 20 kHz

Power ConsumptionDimensions

WeightPrice

RIAA, ±0.2 dBRIM, ±0.2 dB2 Hz -300 kHz,±0.3 dB

380 mV/19 mV0.002% at 8-V out0.002%1.5 V

2.5 mV/125 1.0./150 mV

86 dB/76 dB100 dB16 Hz, 12 dB/oct.;20 Hz, 6 dB/oct.2 kHz, 125 Hz/8 kHz, 125 Hz;2 kHz, 500 Hz/8 kHz, 500 Hz

±0.5, ±1.0, ±2.0,±4.0, ±8.0 dB90 watts18 in. W x 5.25 in.H x 15.4 in. D31.5 lbs.$3,000.00

RIM, ±0.2 dB±0.2 dB

0 Hz -300 kHz,+0, -1 dB

180 mV/15 mV0.005% at 8-V out0.005%1.5 V

2.5 mV/200 or 35 µV150 mV

80 dB/70 dB (IHF)115 dB (IHF)15 Hz, 12 dB/oct.

Not Applicable

Not Applicable

27 watts19 in. W x 4.25in. H x 18 in. D28.6 lbs.$3,200.00

POWER AMPLIFIERSSpecification Denon P0A-8000 Sony TA -N900Rated Output, 8 ohms,

20 Hz to 20 kHzRated Harmonic DistortionSMPTE-IM DistortionInput Sensitivity for Rated

OutputDamping Factor, 8 ohmsFrequency Response

S/N RatioSubsonic FilterSlew RatePower Consumption

IdlingMaximum

Dimensions

WeightPrice per Channel

200 watts0.003%0.003%

1 V (8 ohms)801 Hz -200 kHz,+0,-1.0 dB120 dB (A -weighted)16 Hz, 6 dB/oct.±380 V/µS

160 watts820 watts12.2 in. W x 7.4 in.H x 18.2 in. D48.4 lbs.$2,600.00

200 watts0.05%0.05% (4 ohms, 0.1%)

1.7 V (4 ohms, 1.2 V)500 Hz -100 kHz,+0, -3 dB110 dB (IHF)Not Applicable150 V/µS

175 wattsNot Available187/8 in. W x 31/8in. H x 17% in. D23.13 lbs.$1,750.00

Company Addresses: Denon, 27 Law Dr., Fairfield, N.J. 07006. For litera-ture. circle No. 99. Sony Esprit, Sony Dr., Park Ridge, N.J. 07656. Forliterature. circle No. 100.

Preamplifier Circuit HighlightsThe Denon PRA -6000 preamplifier

employs non -negative feedback cir-cuitry. Balanced circuitry with slewrates approaching 500 V/p.,S is used inall amplification stages. The equalizer/preamplifier section uses an RC load -impedance circuit of the current -ampli-fication type, with no negative feed-back. The MC pre-preamp has a non -negative feedback circuit with bal-anced power supplies. Switching fromMM to MC (in the Phono 1 circuitry) isaccomplished electronically.

The pre -preamplifier of the Sony TA -E900 employs a common -base, com-plementary push-pull amplifier in cas-code connection. The equalizer, inputbuffer, and flat amplifiers which followare made up of a bootstrapped cas-code differential amplifier, a cascodedifferential amplifier, a cascode mirror -load circuit, and an output stage madeup of a Darlington emitter -follower, sin-gle -ended push-pull circuit. The equal-izer amplifier is of the non -feedbacktype. Two regulated power suppliesare used for each channel.

Amplifier Circuit HighlightsThe Denon POA-8000 is a Class -A

monaural amp which does not useconventional negative feedback fordistortion reduction. Instead of overallloop feedback, a distortion eliminationcircuit is built into each stage of theamplifier. The power stage is a three -level Darlington design which employssix series -connected high-speed tran-sistors, each with a dissipation capaci-ty of 150 watts. The p.c. board of thepower transistor section is made of aglass -epoxy resin coated with oxygen -free copper, 150 -microns thick. A toroi-dal power transformer is used in thehighly stable power supply. A blockdiagram of the POA-8000's circuitry isreproduced in Fig. 1.

The Sony TA -N900 amplifier also op-erates in pure Class A. Pre -powerstages consist of a bootstrapped, dou-ble-cascode, FET differential -inputstage with current -mirror output; abootstrapped cascode inverting ampli-fier, and an emitter -follower, single -ended push-pull driver stage. Double -diffused power MOS-FETs are used inthe power output stage. A distortionreduction circuit operates by control-ling gate bias in order to improve pow -

60 AUDIO/JUNE 1983

er stage linearity. A high -efficiencycooling system accounts for the rela-tively compact size of the TA -N900. Itconsists of a heat pipe, heat -sinks, anda crossflow fan driven by an extremelyquiet linear -torque brushless and slot -less motor-the same type as thatused in Sony turntables and tapedecks. The system draws in cooling airfrom the bottom of the amplifier, ex-hausting it from the rear via a ventila-tion grid. The power stage uses nonegative feedback loops and is a pure -complementary, single -ended push-pull output operated in Class A. A"pulse -locked" power supply is usedin the amplifier. Partial block diagramsof the TA -N900 circuitry are repro-duced in Fig. 2.

Preamplifier MeasurementsPhono (MM) input sensitivity for both

preamplifiers was identical, at 0.9 mV,referred to 0.5-V output. Measuredfrom a 50 -ohm source impedance, itappeared as though the Denon unit'spre -preamplifier offered more gainfrom input to main preamp output thanthe Sony unit; sensitivity measured 501.0/ for the Denon and 312 1.LV for theSony model. With an ultra -low terminat-ing impedance of 4 ohms, however,sensitivity of the Sony's MC input camevery close to that of the Denon unit,measuring 55 1.0/ for the same refer-enced output. As for RIM equaliza-tion, both preamplifiers offered accura-cies within 0.1 dB of the prescribedplayback curves throughout the audioband, as shown in Figs. 3 and 4. Notethat the vertical sensitivity of these dis-plays has been expanded to 2 dB perdivision, rather than the usual 10 dBper division. The Sony response curve(Fig. 4) exhibits a slight tendency torise in the superaudible region (around30 to 40 kHz), but even this slight risedid not deviate from flat response bymore than 0.25 dB.

Phono overload for the MM inputs(using a 1 -kHz test signal) measured avery high 400 mV for the Denon and amore than adequate 225 mV in thecase of the Sony preamplifier. Switch-ing to the MC input mode, overloadoccurred at an input level of 23 mV forthe Denon unit, while the Sony pream-plifier was only able to handle 5.5 mVbefore overload was noted. I suspectthat some of the higher output moving -

INPUT

SUBSONIC FILTER

FIRST STAGEDIFFERENTIALAMPLIFIER

,PRESTA-GDREIVE POWERSTAGE

BIASCIRCUIT

DISTORTION ELIMINATION CIRCUIT(VOLTAGE AMPLIFICATION STAGE)

DISTORTION ELIMINATION CIRCUIT(POWER STAGE)

Fig. 1-Block diagram, DenonPOA-8000 power amplifier.

PRE -POWER STIv;E

DIRECT

C -COUPLED

INPUT

POWERSOURCE

TOROIDALTRANSF

POSITIVE LOW - LEVELVOLTAGE REGULATOR

NEGATIVE LOW - LEVELVOLTAGE REGULATOR

STABILIZINGPOWERSOURCE

RECT

METER

ri4o N.11

-±15V

-78 V

A.C. 63 V

OUTPUT STAGEPOWER MOS- FETs POSITIVE PULSE -WIDTH

CONTROL REGULATOR

OUTPUT

NEGATIVE PULSE -WIDTHCONTROL REGULATOR

Fig. 2A-Partial schematic of Sony Esprit TA -N900 amplification stages.Legend: (1) Bootstrapped double cascode FET differential amp, (2) cascodecurrent -mirror load, (3) bootstrapped cascode inverter amp, (4) emitter -follower SEPP output, (5) peak current (PC) limiter, and(6) distortion -reduction circuit.

Fig. 28-Partial schematic of Sony Esprit TA -N900 pulse -width power supply.Legend: (1) Primary rectifier, (2) current surge suppression circuit, (3) linefilter, (4) 20 -kHz power oscillator, (5) converter transformer, (6) secondaryrectifier, (7) pulse -width control circuit, and (8) pulse -width controlvoltage regulator.

AUDIO/JUNE 1983 61

I consider each of these systems to bea superb example of the audio art and

the audio science.

Fig. 3-RIAA response curves,Denon PRA -6000 preamplifierwith cursor set to 7.80 kHz(A) and 29 Hz (B). Noteexpanded vertical scale of2 dB/division.

Fig. 4-RIAA response curves,Sony Esprit TA -E900 preamplifierwith cursor set to 7,80 kHz(A) and 29 Hz (B). Vertical scalehas again been expanded to2 dB/division.

+4

+2

0

-2

4

FR L+ 0.1dB 7 80kHz

20 50 100 200 500 lk 2k 5k 10k 20k

FREQUENCY - Hz

+4

+2

0

-2

-4

A

FR L- 0.1dB 7.80kHz

20 50 100 200 500 lk 2k 5k 10k 20k

FREQUENCY- Hz

A

+4

+2

0

2

-4

+4

+2

0

2

4

FR L- 0.1dB 29Hz

20 50 100 200 500 lk 2k 5k 10k 20k

FREQUENCY- Hz

B

FR L+ 0.1dB 29Hz

20 50 100 200 500 lk 2k 5k 10k 20k

FREQUENCY - Hz

B

coil cartridges now available mightcause a problem when operated intothis MC input, although when using afavorite MC cartridge (custom -pro-duced by Bang & Olufsen) I encoun-tered no difficulties with either preampduring the listening tests.

The Sony preamp does not incorpo-rate tone control circuitry, as men-tioned earlier. Figure 5 shows theboost and cut characteristics of thetone controls provided in the Denonunit. Note that it is possible to selecteither of two turnover points in the bassregion for use with either of the twoturnover settings available for the tre-ble control.

Turning to distortion measurements,THD was so low on both preamps thatall I could read was the residual distor-tion of the signal generators and testequipment (around 0.002% at mid -fre-quencies, rising to around 0.003% atthe frequency extremes). The SMPTE-IM distortion measured around0.0015% for both units, a coincidence

which leads me to believe that here,too, I was reading residual instrumentIM and not any distortion products pro-duced by the units themselves. It al-most goes without saying that the 80dB dynamic range of the spectrum an-alyzer prevented my seeing any IHF-IM distortion products at levels belowclipping for either preamp. The dynam-ic range of 80 dB corresponds to adistortion level of 0.01%, so the best I

can say is that any and all forms of IMdistortion which might have been pro-duced from twin -tone test signals werewell below this figure.

The frequency response of the Sonyunit's high-level section surpassed thatof the Denon. It extended out to 1.25MHz (yes, that's MHz) for a -1.0 dBroll -off and still further out to 1.5 MHzfor the cutoff point of -3 dB. TheDenon unit was down 1.0 dB at 160kHz and -3 dB at 200 kHz. Obviously,the bandwidth of both units is morethan any of us needs.

Coincidentally, signal-to-noise ratio

for the MM phono inputs of both unitswas precisely the same: 89 dB below0.5-V output, referred to 5 -mV input.That's about as high an S/N figure as Ihave ever measured for any phonopreamp input, using the new IHF/EIAinput and output reference values. Asfor S/N of the MC input, the Denon unitexhibited an incredibly high 85 dB,while the Sony unit managed a re-spectable 74 dB. For the high-level in-puts, the Sony unit did a bit better thanthe Denon, measuring 94 dB (refer-enced to 0.5-V output and input)against 90 dB for the Denon preamp.All signal-to-noise measurements areA -weighted.

Power Amplifier MeasurementsSony's claims regarding harmonic

and IM distortion for their Class -A TA -N900 are considerably more conserva-tive than those made by Denon fortheir POA-8000. Both amplifiers didconsiderably better than the claimedfigures at rated output levels and be-

62AUDIO/JUNE 1983

low. At mid -frequencies, the Denonunit reached clipping levels at a poweroutput of 231 watts (8 -ohm load), whilethe Sony unit began to clip when pow-er output reached 262 watts (8 ohm-load). Neither of these amplifiers lists4 -ohm power ratings, but I measuredthem at that impedance anyway, afterfirst throwing the Sony's impedanceswitch to the appropriate position. TheSony amp delivered 240 watts underthese conditions, for a THD level of0.1%; the Denon unit produced 220watts at the lower impedance beforeTHD rose above the nominal 0.003%rating. Real clipping at 4 ohms oc-curred at a considerably higher poweroutput level-more like 250 watts.

The Denon unit exhibited marginallyhigher dynamic headroom than theSony amp, 1.4 against 1.02 dB. Damp-ing factors were very close to pub-lished figures, 75 for the Denon amplifi-er and 52 for the Sony. The CCIF-IMdistortion figures were 0.0033% for theDenon amplifier and 0.0167% for theSony. I was able to detect a bit of IHF-IM distortion for the Sony amp usingspectrum analysis and mathematicalsummation of observed components ofdistortion in the audio band. The re-sults of my calculations showed thatthe Sony was producing all of 0.03%IHF IM at rated output. Frequency re-

sponse for both units extended well outbeyond 100 kHz for the -1 dB roll -offpoint. Input sensitivity for rated outputwas 1.1 V for the Denon unit and 1.65 Vfor the Sony TA -N900. Input sensitivitydecreased to 1.2 V for the Sony ampwhen the load impedance (and the im-pedance switch setting) was changedto 4 ohms. Both amplifiers retained sta-bility when 2-µF nonpolarized capaci-tors were shunted across the load re-sistors used in the bench tests.

Signal -'o -noise ratios for the amplifi-ers measured 94 dB for the Denon unitand 95 dB for the Sony, both referredto 1 -watt output. Since the Sony ampli-fier is not equipped with an input -levelcontrol, I had to interpolate to obtain itsS/N figure: There was no way to estab-lish standard input level (0.5 V) while atthe same time adjusting output for thestandard 1 -watt level at which thesemeasurements are supposed to bemade.

Listening Tests-The Moment of Truth

With amplifiers and preamplifierssuch as these, what possible programsources could I use to identify subtledifferences, if any, between the twosystems? Why, Compact Discs, ofcourse! Happily, I was in the processof testing my very first DAD playerwhen I first auditioned the Sony Espritsystem, and by the time I measuredand listened to the Denon compo-nents, I already owned my very owndigital disc player. So, although thelistening tests were not blind A -B, atleast the program material used in bothcases was identical-and superb. So,too, was the quality of sound deliveredby both systems. (I told you at theoutset not to expect a clear winner, sodon't look so disappointed!)

Were there any other physical differ-ences between these two superb sys-tems that are worth noting? Yes, therewere. The Sony amplifiers are morecompact and much lighter in weight,but that is accomplished in part by theincorporation of forced air cooling.And, as with any forced air coolingsystem, if you listen carefully (especial-ly when there is no surface noise ortape hiss to mask it) you can hear thefan when it operates. Unlike some pub-lic-address amplifiers which featurefans that only turn on when things get

too hot, the cooling system in the SonyTA -N900 operates continuously, how -ever quietly. If the amps are at somedistance from you, no problem. If

you're right on top of them, you willhear the fan motor during ultra -quietpassages of music. The solution, ofcourse, is to get the amps out of thelistening room altogether.

That's not necessary with the Denonsystem, where larger heat -sinks and agenerally larger and heavier construc-tion obviate the need for a forced aircooling system. Indeed, this is a goodthing because the Denon units, withtheir attractive solid -aluminum sidepanels, are worth showing off. All threecomponents are truly beautiful lookingas well as beautiful sounding-andthat's not easy to achieve with a three -piece electronic preamplification andamplification system.

If you were considering these twosystems for possible purchase, one ofthe determining factors might be yourattitude regarding the need for tonecontrols. If you feel they are superflu-ous or even detrimental, as so manyaudio purists seem to believe, then youwould obviously lean towards the Sonysystem. If you feel that tone controls, ifexecuted with care and used in moder-atior, can prove to be an asset-espe-cially when program material itself orroom acoustics need some measure oftonal compensation-then you willwant to look carefully at the Denon trio

As for my listening tests, using thefinest program material on CompactDiscs that I was able to obtain, I coulddetect no difference in quality betweenthe Sony and Denon systems-again.bearing in mind that I was unable toconduct instantaneous A -B compari-sons. More important, I consider eachof these systems to be a superb exam-pie of the audio art and science. If

nothing else, the tests proved to methat a company that makes most of itssales in mid -priced components, suchas Sony, can turn out products to de-light the most esoteric of audiophiles.Similarly, a company like Denon,whose high -end electronic productsare perhaps not as well known in thiscountry as are its turntables (which areacclaimed even by the high -end audiofraternity here) can turn out amplifiersand preamplifiers whose performanceis second to none. A

i1 i

I'esil

i

.Ia

i

Fig. 5-Tone control characteristics,Denon PRA -6000 preamplifier.

AUDIO/JUNE 1983 63

BUILD A POOR -MAN'SWOW & FLUTTER

METER

M. J. SALVATI

This article describes the con-struction and operation of a low-cost device capable of measur-

ing turntable or recorder speed accu-racy and wow and flutter. Cost is keptas low as possible by utilizing the au-diophile's own d.c. and a.c. voltmetersto read out speed accuracy and wowand flutter, respectively. However, in-structions are given for internal meter-ing, if desired. While this device doesnot have the same accuracy and fea-tures as commercial instruments sell-ing for $500 to $1,000, it certainly willcheck the specs of medium- and low-cost recorders and will indicate seriousdeficiencies in top -of -the -line ma-chines. Full specifications for the meterare given in Table I.

Theory of OperationThe output of a turntable or tape

machine is fed to a frequency discrimi-nator whose output contains a.c. andd.c. error -signal components repre-senting wow and flutter and speed er-ror, respectively. These error signalsare individually processed by the twosignal channels, and read out bymeans of a.c. and d.c. voltmeters con-nected to the unit. The schematic ofthe basic device is shown in Fig. 1.

Frequency Discriminator. Op -ampIC1 is a unity -gain buffer that providesa high input impedance for the unit. It

drives the input of phase -locked loopIC2. As long as the input signal isabove 10 mV and within ± 30% of the3,150- or 3,000 -Hz test frequency, theIC's d.c. output level is directly propor-tional to the frequency of the input sig-nal. As the input frequency shifts (dueto recorder speed variations), the d.c.output voltage of IC2 also shifts. Ca-pacitor C5 and resistors R3 and R4determine the center frequency of thediscriminator.

Speed Channel. The error -signaloutput voltage at pin 7 of IC2 is refer-enced to its pin 6 voltage, so a differ-ential amplifier (IC3B) with a voltagegain of 75 x amplifies the error signaland converts it to a ground -referencedsignal. A filter with a very long timeconstant (resistor R21 and capacitorC13) removes the rapid variations(wow and flutter), so the d.c. voltageappearing at the output of buffer IC5

represents only the (relatively) con-stant speed error. A d.c. voltmeter con-nected to jacks J3A and J3B will there-fore indicate speed accuracy (or"drift," as it is sometimes called). Be-cause of the drive capability of IC5,even a low -impedance voltmeter canbe used for readout.

Wow and Flutter Channel. The error -signal voltage at pin 7 of IC2 is alsoapplied to a 200 -Hz low-pass filter.This second filter and amplifier chainremoves the test frequency, sets theupper frequency limit of the wow andflutter signal passband, and amplifiesthe signal to the extent necessary toestablish the 1 V per 1% scale factor.Op -amp IC3A uses a small amount ofgain (1.7 x) to produce a sharp cornerdespite the use of only two filter sec-tions (R7, R8, C6 and C7). The follow-ing op -amp (IC4) provides a voltage.gain of 44 x , so the total voltage gainfor this channel is 75 x . Since this gainis the same as that of the speed chan-nel, it means that when the "Speed"output is calibrated (via pot R17 acrossthe output of IC2), the "W & F" output iscalibrated simultaneously.

The input coupling to op -amp IC4 iscapacitive, to remove the d.c. compo-nent from this channel. The output sig-nal of IC4 is applied to the "W & F"jacks (J2A and J2B) via another low-pass filter (R13 and C11), which pro-vides an additional 10 dB reduction ofthe 3,150/3,000 -Hz test frequency.

Internal Metering. Meter M I (see Fig.2A) has a zero -center scale, so it is not

Table I-Specifications

Operating Frequency: 3,000 or3,15C Hz.

Input Level: 10 mV to 20 V.Input Impedance: 100 kilohms.Speed Readout Ratio: 1 V d.c.

per 1% speed error.Speed Accuracy Ranges: De-

pends on d.c. voltmeter used;±5% for internal metering.

Wow and Flutter FrequencyRange: 0.5 to 200 Hz.

Wow and Flutter Readout: 1 Va.c. per 1% wow and flutter.

Wow and Flutter Ranges: De-pends on a.c. voltmeter used;0.2%, 1%, 5% for internal meter-ing.

necessary to switch polarity as tapespeed drifts from faster to slower thannormal. For wow and flutter measure-ments, a high-pass filter and precisionrectifier are combined to drive meterM2. Op -amp IC8 is configured as amaximally -flat, two -pole filter whosecorner frequency is 0.5 Hz. This estab-lishes the low -frequency limit of the 0.5to 200 -Hz standard wow and flutterpassband, and also provides someamplification before the wow and flut-ter signal is applied to the precisionrectifier (IC9), which converts it to aunipolar voltage. The "W & F" percent-age switch (S4) selects the resistorsthat establish the scale factors for me-ter M2.

Construction NotesThere is nothing especially critical

about layout beyond the common-sense precaution of not routing thepower -switch leads near the "Input"connector and its switch.

With the exception of the powertransformer, rectifiers and filter capaci-tors, nearly all of the basic -unit compo-nents are mounted on a single piece ofVeroboard® or equivalent perfboard.Furthermore, if you obtain compact fil-ter capacitors, there is no reason whyall power -supply components otherthan the transformer cannot be mount-ed on the same board. However, if youopt for internal wow and flutter meter-ing (Fig. 2B), it might be more conve-nient to build the additional circuitry ona separate board.

Choice of Parts. There is consider-able latitude in the ratings for many ofthe parts listed in Tables II andWhere space permits, the alternatechoices are given in the parts lists, withthe preferred part listed first. For exam-ple, the low -power (100 mA, TO -92case) versions of the three -terminalplastic voltage regulators will do nicelyfor 106 and IC7, although any of theequivalent higher -power versions list-ed work just as well. Similarly, any ca-

' pacitors having a voltage rating of over20 V can be used (except for C15 andC16). The most important consider-ation with capacitors is to locate theceramic disc bypass capacitors physi-cally close to the associated ICs, andcapacitor C16 close to IC7. Where notype of capacitor is specified, you canuse paper, polyester, mylar, or ceramic.

AUDIO/JUNE 1983 65

Table II -Basic Unit Parts List

IC1, IC4, IC5-LF351 or LF13741 FET op -amps.IC2-NE565 or LM565 PLL.IC3-µA747 or LM747 in 14 -pin package.IC6-78L15, 7815, or LM340T-15 positive regulator.IC7-79L15, 7915, or LM320T-15 negative regulator.J1-Phono jack.J2, J3 -Pairs (red/black) banana jacks.S1-SPST toggle or slide switch.S2-SPDT toggle or slide switch.S3-DPDT toggle or slide switch.T1-16 to 18-V, 0.25-A power transformer (Mouser

41FJ300 or Digi-Key T102).D1, D2 -6.0-V, 500-mW zener diodes.D3 -LED.D4, D5-100-PIV, 1-A silicon rectifier diodes.C1, C2, C8, C9, C11, C12, C14 -0.022-µ,F, 25-V ceramic

disc capacitors.C3-0.1-p.F, 25-V capacitor.C4 -0.001-µF, 25-V capacitor.C5, C6, C7 -0.01-µF, ± 10% styrene or silver -mica

capacitors.

C10, C13, 017-0.22-g, 25-V capacitors.C15, C16 -220-g, 35- or 50-V electrolytic capacitors.C18 -2.2-µF, 25-V tantalum electrolytic capacitor.R1-100-kilohm, 1/4-W carbon -film resistor.R2, R13-4.7-kilohm, 1/4-W carbon -film resistors.R3-10-kilohm, 15 -turn trim pot (Weston 830P or

Spectrol 43P).R4-5.6-kilohm, 1/4-W, 5% carbon -film resistor.R5 -560 -ohm, 1/2M resistor.R6-13-kilohm, 1/4-W, 5% carbon -film resistor.R7, R8-120-kilohm, '1/4-W, 5% carbon -film resistors.R9 -430 -ohm, 1/2-W resistor.R10-9.1-kilohm, 1/4-W, 5% carbon -film resistor.R11, R21-4.7-megohm, 1/4-W carbon -film resistors.R12, R20-10-kilohm, single -turn trim pots.R14-43-kilohm, 1/4-W, 5% carbon -film resistor.R15-1-kilohm, 1/4-W, 5% carbon -film resistor.R16, R18-10-kilohm, 1/4-W, 5% carbon film resistors.R17-47-kilohm, single -turn trim pot.R19, R22-750-kilohm, 1/4-W, 5% carbon -film resistors.7 x 5 x 3 -inch aluminum box (Mouser LMB TF-782).

JI

CI

)1

R4

S20.1 0

RI

R2

C2

3

D2 Ar,

ICI

4

R3

3

C3

C4

10

41_15 _I!C5

R5

IC DI

R6

C8

R7 R8

C6 C7

D3

7

IC3A

4

RIO

jf

CIO

RI I

C9

POWER

R16

RI7

RI8

RI9

R20

Cl2

R22 2

R21

CI3

IC

7

4

CI4

+15V

RI5

15V

+15VS3A J3A

0

0S3B

I 5 V

J3B

W & F

SPEED

Fig. 1 -Schematic diagram ofbasic unit.

66AUDIO/JUNE 1983

The input and output connectorsspecified are the most typical for theirapplication. They can (and should) bechanged to other types more suited toyour own tastes and/or test equip-ment. (I certainly did this in my proto-type!)

Options and Modifications. The cir-cuit shown in Fig. 1 was designed tointerface with as wide a variety of testequipment and tape machines as pos-sible. In most cases, you can save alittle time, effort and money by eliminat-ing the features not necessary to yoursetup.

If all your tape machines have atleast one output jack apiece whosenormal output level is in the range of10 mV to 1 V rms, you can eliminate S2and the 4.7-kilohm resistor. Connectthe "Input" jack (J1) directly to pin 3 ofIC1, and resistor R1 from there toground.

If you are using an external d.c. volt-meter to read out speed, and that volt-meter has its own polarity (" + / - ")switch, you can eliminate S3. Simplyconnect the red ( + ) "Speed" jack topin 6 of IC5, and the black ( - ) jack toground.

If you plan to use internal metering

for speed readout, eliminate the"Speed" jacks and switch S3, and addthe parts shown in Fig. 2A. ResistorR23 then connects directly to pin 6 ofIC5, and the meter " - " terminal con-nects to ground.

Using your a.c. voltmeter to read outwow and flutter is both convenient andcost efficient. However, many a.c. volt-meters lack full response down to the0.5 Hz commonly used as the lowerlimit measured by commercial wowand flutter meters. Therefore, you maywant to build a low -frequency a.c. volt-meter into this device. A suggestedcircuit, which consists of a 0.5 -Hz high-pass filter, precision full -wave rectifierand meter ng, is shown in Fig. 2B. Thiscircuit provides full-scale wow and flut-ter ranges of 0.2%, 1%, and 5%. Sincemulti -scale meters are rarely availableas stock items, you will have to use a 0-50 scale microammeter and add the 0-0.2 and 0-1 scales with dry -transferlettering. The decade zeros of the ex-isting scale graduations can either beerased or painted over with whiteenamel.

A list of additional and alternateparts needed for internal metering isgiven in Table III. Note that some of

PIN 6105

A

C20 C21

<-11--11R13a R25 R26

CI I

B

R23

C19

MI

Fig. 2-Schematic diagram ofoptional, internal metering circuitry forspeed accuracy (A) and wow andflutter (B).

+15VR28

C23

D7

R29

D6

C2215 V

R3IA

RR30

3I

0.2%--0S4

w a F %

R32

I%

R33A

R33B

5%

M2

these parts (mostly capacitors) areused in place of their equivalents in theBasic Unit Parts List. After you havedecided what (if any) options or modifi-cations you want in your unit, carefullygo through both parts lists to selectonly those parts you will actually use.

Packaging. This depends on the de-gree of complexity selected. The unit Ibuilt is housed in a custom-made box.The recommended standard -size alu-minum case for the basic unit is 7 x 5x 3 inches, with a 5 x 3 end used asthe front panel. A suggested layout isshown in Fig. 3A. If you use internalmetering, a larger case is necessary toaccommodate the meters. For both in-ternal speed and wow and flutter me-tering using the recommended 4 -inchmeters, a 10 x 6 x 31/2 -inch case isideal. The suggested layout shown inFig. 3B uses one 10 x 6 face for thefront panel.

Parts Availability. All of the ICs, resis-tors, and capacitors are available fromconsumer -oriented mail-order housessuch as Digi-Key and Jameco Elec-tronics. The meters, power transform-er, case, and many of the other partsare available from Mouser Electronics.Order their catalogs first to checkprices and availability. (Digi-Key, Box677, Thief River Falls, Minn. 56701; Ja-meco Electronics, 1355 Shoreway Rd.,Belmont, Cal. 94002, $10 minimum or-der; and Mouser Electronics, 11433Woodside Ave., Santee, Cal. 92071,$20 minimum.)

AdjustmentsTo adjust this device, an audio oscil-

lator, a.c. voltmeter, d.c. voltmeter, andfrequency counter are needed. Beforeenergizing the circuit, set all pots (R12,R17 and R20) to mid -rotation. Proceedas follows:1. Plug in the power cord and flip the

power switch on. The LED shouldilluminate.

2. Check the output voltages at IC6and IC7. They should be + 15 and-15 V respectively.

3. Check the voltages at pins 7 and 4of IC1. They should be +6 and -6V respectively.

4. Check the voltage at pin 6 of IC2. Itshould be approximately +4.5 V.After making these checks, go on to

the calibration adjustments, but waituntil the wow and flutter meter and test

AUDIO/JUNE 1983 67

Table III-Options Parts List

IC8-LF351 or LF13741 FET op -amp.IC9-LF353, LM1458, RC4558, TL072, or TL082 dual op -amp.S4 -1 -pole, 3 -position rotary switch.M1-50-0-50 µA microammeter (Mouser 39LK416).M2-0-50 jiA microammeter (Mouser 39LK414).D6, D7 -1N914 or 1N4148 silicon signal diodes.C19, C22-0.022-ILF, 25-V ceramic disc capacitors.C20, C21-0.22-1.11, ± 10% capacitors (Panasonic M1224).C23-100-pF ceramic disc or mica capacitor.R23-100-kilohm, 1/4-W, 5% carbon -film resistor.R24-13-kilohm, 1/4-W, 5% carbon -film resistor.R25, R26-1.5-megohm, 1/4-W, 5% carbon -film resistors.R27-9.1-kilohm, 1/4-W, 5% carbon -film resistor.R28, R29-10-kilohm, 1/4-W, 5% carbon -film resistors.R30-4.7-kilohm, 1/4-W carbon -film resistor.R31-5.3-kilohm (5.1 kilohms and 200 ohms), 1/4-W, 5% resistor.R32-33-kilohm, 1/4-W, 5% resistor.R33-168.5-kilohm (160 kilohms and 8.2 kilohms), 1/4-W, 5% resistor.10 x 6 x 31/2 -inch aluminum case (Mouser LMB TF-784).

equipment have been warmed up forat least 20 minutes. Do the calibrationprocedures inlater adjustments depend on the pre-ceding ones.

D.c. Balance. To adjust the d.c. bal-ance of IC4, connect a d.c. voltmeteracross the "W & F" jacks (J2A andJ2B). Then, carefully adjust pot R12 foran output voltage of zero, ±01 V.

To adjust the d.c. balance of thespeed channel, proceed as follows:1. Connect the d.c. voltmeter across

the "Speed" jacks (J3A and J3B).2. Either connect a jumper from pin 6

to pin 7 of IC2 (best way) or rotatepot R17 so it has zero resistance.

3. Carefully adjust pot R20 for an indi-cation of zero, ± 0.1 V.

4. Remove the jumper or restore potR17 to mid -rotation.

Calibration. The procedure givenhere will adjust for a scale factor of 1 Vd.c. per 1% frequency error at the"Speed" jacks, and a 1-V a.c. outputper 1% wow and flutter at the "W & F"jacks, based on the newer standardtest frequency of 3,150 Hz. However,the 3,000 -Hz figures will be given inparentheses, in case your test tapesuse this frequency. After determiningwhich frequency applies, proceed asfollows:1. Connect an oscillator whose fre-

quency can be accurately set (ei-ther by dial calibration or by a

counter) to "Input" jack J1. Set theoscillator output to around 100 mV

frequency to3,150 (3,000) Hz.

2. Set the range switch of the d.c. volt-meter (connected to the "Speed"jacks) to 5 V and its polarity switch(or S3) to positive. If the prior ad-justments were properly made, thisvoltmeter should indicate 0 V withexactly 3,150 -Hz (3,000 -Hz) input.

3. Change the oscillator frequency toexactly 3,276 (3,120) Hz, as indicat-ed on the frequency counter or dial.Adjust trim pot R17 for a d.c. volt-meter indication of exactly 4.0 V.

Center -Frequency Adjustment. PotR3 allows the center frequency to beset to either of the standard test fre-quencies (3,150 or 3,000 Hz). Again,the procedures given here are for3,150 Hz, with figures for 3,000 Hz inparentheses. To adjust R3, proceed asfollows:1. Connect a frequency -stable oscilla-

tor to "Input" jack J1. Set the oscil-lator output level to around 100 mVrms.

2. Connect a d.c. voltmeter to"Speed" jacks J3A and J3B.

3. Carefully adjust the oscillator fre-quency (with a frequency counter)to 3,150 (3,000) Hz, -± 2 Hz. Thenadjust trimmer R3 for zero d.c. out-put at the "Speed" jacks.

4. When you have done this, recheck

the frequency counter display tomake sure that the input frequencyis exactly 3,150 (3,000) Hz. Read-just the oscillator frequency if nec-essary, and readjust trim pot R3 forexactly zero d.c. output. The accu-racy of your speed -error measure-ments depends on how carefullythis adjustment is made. Note: Ifyou do not have a frequencycounter, pot R3 can be set wellenough for wow and flutter mea-surements by using the dial calibra-tions of the oscillator. However, thisalternative is not accurate enoughfor reliable speed measurements.

OperationThere are two ways to use this de-

vice to check tape machines. The sim-plest method is with your own oscillatoras the signal source. This permits anoverall check of wow and flutter; re-cord and playback performance ismeasured as a whole. The secondmethod uses a prerecorded test tape

only for wow and

POWER I INPUTg @

W&F SPEED

00 ©A

5

[EE12]

I I NF'UT I

B

Fig. 3-Suggested panel layouts ofbasic unit (A) and unit with fullinternal metering (B).

68 AUDIO/JUNE 1983

flutter and speed accuracy. Turntablesuse this second method with a testdisc such as the CBS STR-151. For anoverall measurement:1. Connect an a.c. voltmeter with

(wow) predominate. However, this is

just a generalization, since the damp-ing and ballistics of the a.c. voltmeteraffect the amount of pointer movementfor any given amount of wow.

microcassette wow and flutter tapes, at$19 to $34.

To check speed accuracy and/orplayback -only wow and flutter, pro -

ceed as follows:

good low -frequency response to Overall wow and flutter measure- 1. Connect an a.c. voltmeter withthe "W & F" jacks. ments will vary considerably from the good low -frequency response to

2. Connect a stable audio oscillator to playback -only wow and flutter specifi- the "W & F" jacks and a d.c. volt -

the tape machine's input connector. cations listed by most manufacturers. meter to the "Speed" jacks.

Set the oscillator output to whateverlevel the tape machine requires for

When the tape is recorded and playedback on the same machine, the same

2. Turn on the device, the voltmeters,and tape machine. Allow everything

recording. Set the oscillator fre- cyclic speed variations occur in play- to warm up for 20 minutes.

quency to the same test frequency back and recording, and can either 3. Connect the "Input" jack to the tape

(3,150 or 3,000 Hz) as that for add or subtract, depending on their machine's output jack. Set the "In -

which your device was previously phase. With test tapes recorded on a put" level switch to match the tape

calibrated. different machine of lower wow and machine's output level.

3. Allow the equipment to warm up for flutter, this is less of a problem. In my 4. Play the test tape in the tape ma -

a few minutes, then record 10 to 15 experience, multiplying the overall chine. The d.c. voltmeter will indi-

minutes of test signal on a blank measurements by 0.6 or so yields a cafe speed error at the rate of 1 V

tape. Do this near the middle of the figure that is roughly comparable to (meter indication) per 1% speed er-

tape reel or cassette for best re- playback -only specifications; some ror. Positive voltage means the tape

sults. testers recommend a figure of 0.7. It machine is fast; negative voltage

4. Disconnect the oscillator from the also helps, even with commercial test means the machine is slow. Note: if

tape machine. Connect the tape tapes, to make multiple readings and wow is severe, the d.c. readings will

machine's output to "Input" jack J1. average them. also fluctuate slowly.

5. Play back the recorded test signal,and set "Input" level switch S1 to

Wow and flutter test tapes are avail-able from several sources. Standard

The a.c. voltmeter will indicate wowand flutter of the playback section alone.

match the tape machine's output Tape Laboratory (26120 Eden Landing Again, a steady meter reading indicates

level. Rd. #5, Hayward, Cal. 94545) has mainly high -frequency speed variation

The a.c. voltmeter will indicate total open -reel and cassette tapes at $40 to (flutter); if the reading fluctuates, low -

wow and flutter. A fairly steady meter $50 for home formats, higher prices for frequency components (wow) predomi-

indication means that the output is half -inch, 1 -inch or higher -speed nate. The damping and ballistics of the

mainly high -frequency components tapes. LC Engineering Laboratories particular a.c. voltmeter used will affect

(flutter). A widely varying indication (9451 North Kostner Ave., Skokie, III. the speed and degree of observed varia-

means that low -frequency components 60076) has open -reel, cassette and tion for any given amount of wow.

It we madethem

ike otherlook lloudspeakers...that's all theywould sound like.New PS8 and PE 10 Point Source

LcudspeakerSystems

DESIGN%111 ACOUSTICS

Audo TechncoComeoni

An

Enter No. 32 on Reader Service Card

ORE THun ER FROM THETHE PERFORMANCE WORLD

CAR7PRO CELEBRITY CRURLIER CHEUE171 1-1714T1017 1111111811 maw CAMO CAPRICE rcHuent

inTRopuonG THE nEw5 -SPEED, 5 -LITER Z28.It's been quite a year for Camaro Z28.

First, it became Motor Trend maga-zine's 1982 "Car of the Year:' Then,the official Indianapolis 500 Pace Car.

And now, it looks like the competi-tion is in for some more roughweather. With the introduction of thenew 5 -speed, 5 -liter Camaro Z28.

More power and more gears than lastyear. To take you from zero to 50MPH with lightning -like response.And that, of course, is in addition toall of the advanced engineering fea-tures that helped make Camaro thehottest -selling 2 + 2 sport coupe onthe road today: Like road -huggingGround Effects technology. A cockpitdesigned with the latest advances inergonomics. And a shape so sleek,only its shadow can match it.The new 5 -speed, 5 -liter Camaro Z28.

It's going to be nearly impossible forthe competition to steal any of itsthunder.

Some Chevrolets are equipped withengines produced by other GM divi-sions, subsidiaries, or affiliatedcompanies worldwide. See yourdealer for details.*Source: Ward's Automotive

Reports, Specialty SubcompactSegment, October, 1982.

Let's get it together... buckle up.

ONE -BRAND SYS =MS

SANYO PRO-PONENTAUDIO/VIDEO SYSTEM

Sanyo is a sufficiently broad -based company to offer justabout every type of consumer

electronic product currently sold to thepublic. It's no wonder, then, they havecome up with a "total" audio/videopackage that can be easily assembledand installed to form the basis of acomplete home entertainment center.As complete as this system is-whatwith its stereo audio component sys-tem and rack, matching speaker sys-tems, plus a superb color video moni-tor, video tuner/control center and vid-eo rack-Sanyo wisely chose to offereach of its elements separately. Whilethis didn't allow the designers to pro-vide any interactive features, such asthose we have seen on some one-

brand audio systems, the trade-off offlexibility in customer options makesup for that omission. After all, the videomonitor and TV control center would

certainly be a welcome addition forthose who already own a high -qualityaudio component system, while thosewho own a good color set or even a TVmonitor should have the option of be-ing able to add just an audio compo-nent system, with or without speakers,and, for that matter, with or without avideo tuner -control center.

For those who do choose to goSanyo all the way, for both video andaudio components, the facilities of-fered by the Pro-Ponent System (asSanyo calls the total combination) aretruly complete. Before detailing the im-portant features of each of the audioand video components, let me statethat I was very favorably impressedwith the styling. The tuner, integratedamplifier and cassette deck all havecleverly designed, swing -down hingeddoors with slots or openings that per-mit you to operate major controls or

observe needed indicators even withthe doors closed. Preset buttons on thetuner are still accessible, as are pro-gram selector buttons on the amplifier;metering LEDs are visible in the cas-sette deck, even with these doors intheir closed positions.

The P-33 turntable and cartridgecombination offers the first linear -track-ing turntable I have encountered in aone -brand system. It is fitted with anonreplaceable cartridge whose stylusis user replaceable. Although selectedspeed is indicated by a digital readout,this readout does not convey accuracyof speed, for which strobe markingsare supplied both on the rim of theturntable and on a small printed cardwhich fits on the spindle. A speed con-trol fine-tunes the 331/3 or 45 rpmspeeds. I found the tracking of the low-mass arm to be quite good and wasrather amazed, in fact, that a linear-

72AUDIO/JUNE 1983

ONE -BRAND SYSTEM RATINGSManufacturer: Sanyo Model: Pro-Ponent SystemCompany Address: 1200 West Artesia Blvd., Compton, Cal. 90220.Cabinet Dimensions: Audio cabinet, 16 in. W x 343/4 in. H x 151/2 in. D; video

cabinet, same but 22 in. w.Separate Component Prices: System 33 audio components (A-33 amplher, 1-33

tuner, P-33 turntable and cartridge, and D-33 cassette deck), $599.95; S-33 loud-speakers, $199.95 per pair; APB -33 speaker stands, $59.95; AF -33 audio rack,$199.95; AVM -195 color monitor, $599.95; AVT-95 video control system, $399.95;AVF-90 video rack, $199.95.

System Price: $2,259.65. For literature, circle No. 98.

AUDIO COMPONENTS

Component & Specification Claimed Measured Rating

Power Amp Section (A-33)Power/Channel, watts 25.0 30.0 .V.I)Rated THD, % 0.09 0.07 .1).h.l)

Preamp/Control Section (A-33)Freq. Response, Phono, ± dB RIM, ±0.2 dB RIAA, +0, -0.2 dB l).1).*Phono S/N, dB 90t 76 J1.*

FM Tuner Section (T-33)50 dB Quieting, Stereo, dBf 39.2 40.0 .t).1)

S/N, Stereo, dB 70.0 71.0 1),IV)THD, Stereo, 1 kHz, % 0.30 0.13 .4.61)Separation, 1 kHz, dB 45 40 JWAlt. Channel Selectivity, dB 65 68 ..h.h.N

Turntable/Cartridge Section (P-33)Frequency Resp., Hz -kHz, ± dB 20-20 47-18.5 11.:)

Separation, 1 kHz, dB 20 23 .W)Rumble, DIN B, dB 78 75 ANV)Wow & Flutter, % wtd. rms 0.04 0.05 ,i).h.l)

Cassette Recorder Section (D-33)Freq. Resp., Hz -kHz, ±3 dB

Normal Tape 20-13 37-16.5 .tV)J)Chrome Tape 20-17 35-20 .14.1)1)Metal Tape . 20-19 20-20 .l).h.h.l)

S/N, Best Tape, dB (with NR) 77 78.4 .N.).t4Wow & Flutter, % wtd. rms 0.04 0.06 .*.l)

tNot measured according to IHF/EIA Standards; see text.

VIDEO COMPONENTSComponent & Specification Claimed Measuredtt Rating

Video Control System (AVT-95)Number of Video Inputs 3 3 AN)))Number of TV Channels 82, +23 Cable Confirmed .V.h.l)Remote Control Full -Function Confirmed

Video Monitor (AVM -195)Maximum Usable Luminance NA 152 Foot -Lamberts t).,1) 6J,

Horizontal -Line Resolution 360 Lines 360 Lines .,1).h.h.h.1)

Black -Level Retention NA 90% .W.hFrequency Response NA To 4.2 MHz

ohk,.,NJ)kobk4',

Interlace NA 50/50 "V41,41Transient Response NA Good .14.1)

ttSupplied by CBS Technology Center.

Rating Systemj) = Poor; .,I4 = Good; .1).V) = Very Good; j,,,I).h.l, = Excellent; J),,I)J,J)J, = Superb.

General CommentsIntegrated Amplifier: Sound qualityquite good at moderate listeninglevels. Because of rather limitedpower, it would be wise to choosevery efficient speakers for this amp, -unless you stay with the S-33speakers Sanyo offers for this sys-tem. Excellent phono preamp sec -tion with very accurate RIAA equal -ization. Tuner: Very cleverly de -signed in terms of physical layoutand ease of use and tuning. Onlymoderately sensitive, however, andan outdoor FM antenna is suggest -ed. Turntable & Cartridge: Car-tridge cannot be replaced by one ofyour own choice, and present car-tridge exhibits unusual bass"bump" with the radial trackingtonearm in which it is mounted.Some listeners may actually findthis extra bass appealing. Trackingability was excellent and rumblewas low. Cassette Deck: High -endresponse better than claimed whenusing premium tapes, but bass re -sponse rolled off with all but metaltape. Dolby tracking was excellent,and presence of Dolby C NR addsvalue to this deck. Video ControlCenter: Well designed, both interms of a TV tuner and in terms ofits flexibility as a video control cen-ter. Adequate number of video andaudio inputs for most home enter -tainment systems. Color Monitor:Provides a far better picture than isavailable from even the most ex -pensive all -in -one TV sets. Whenused with the System 33 audio com-ponents, the internally supplied am -plifiers are bypassed. (But evenwithout them, the AVM -195 is fairlypriced for the quality of picture it

delivers.) Overall Comment: Audiocomponents don't particularly takeadvantage of the fact that they aresold as a system (no interactive fea-tures), but all components workedwell together and integrated nicelywith the video components.Overall Rating: Audio, .1\14; video,J)1).1).1)

AUDIO/JUNE 1983 73

"The amplifier exceeded itspower rating, delivering30 watts per channel, butwith today's programsources, choose high -efficiency speakers."

tracking tonearm could be incorporat-ed in an audio component package inthis price range. I was disappointedwith the frequency response of the sys-tem. Though excellent at the high end,it exhibited a very steep rise at around25 Hz, which I could only attribute totonearm/cartridge resonance. I'm allfor getting tonearm resonance up andout of the warp -wow region, but 25Hz-that's a bit high!

The A-33 integrated amplifier incor-porates features usually found only onhigher powered, more expensive mod-els. Included, for example, is a record-

out selector switch, allowing you to re-cord one program source while listen-ing to another. A subsonic filter andloudness control are included, as arethe usual bass and treble tone controlsand a not -so -usual microphone input,with its own level control for mixing inlive mike sounds with other programsources.

The amplifier met its basic publishedspecifications, with the exception ofphono signal-to-noise. Sanyo's specifi-cation cannot be compared with mymeasured results since the company isstill referencing this measurement tosome undefined (but high) input leveland to rated output. Still, my IHF/EIAreading of 78 dB (A -weighted) is cer-tainly acceptable for a system of thistype. The amplifier exceeded its powerrating, delivering 30 watts per channelat mid -band, but with today's dynamicprogram sources, you can't expect toreproduce lifelike sound levels with thisamp unless you choose high -efficiencyspeakers to go with it. I did not auditionSanyo's S-33 speakers, but wouldguess that they are probably highenough in efficiency to compensate forthe relatively low power output of thisotherwise fine amplifier.

Like so many recently designed tun-ers, the T-33 offered by Sanyo employsprecise frequency -synthesized tuning,eight preset buttons for selecting fa-vorite stations, "Up" and "Down" but-tons for manual tuning, and a digitalreadout of frequencies to which thetuner is set. While not one of the mostsensitive AM/FM tuners I have tested, itdid exhibit low distortion in both monoand stereo, adequate stereo separa-tion and reasonable selectivity for mostmetropolitan locations. Signal -strengthLEDs, and indicators to tell you which

of your preset stations you are tunedto, embellish an otherwise simple,straightforward and very good-lookingfront -panel layout.

The two -head D-33 cassette deckexhibited excellent signal-to-noise ca-pabilities, thanks to the incorporationof Dolby C noise reduction. Again, thisfeature is rarely found on low-costdecks and, more important, calibrationof Dolby B and C NR was excellent. Asis often the case with lower cost decks,however, "0 dB" has been set 3 dBbelow actual Dolby level (200 nWb/m),which gives the user the feeling thatthere's more headroom in this deckthan there actually is. For superb re-cordings, I recommend metal tape,though for noncritical, casually maderecordings, any premium ferric -oxideor high -bias tape will do nicely. Al-though wow and flutter was not quiteas good as the 0.04% claimed bySanyo, the 0.06% reading is betterthan I would have expected from eventhe most expensive cassette decksjust a few years ago.

The AVT-95 video control system isstyled like an audio component. Visibleon its front panel are a stereo head-phone jack, pushbutton selectors forthe one r.f. and three audio/video in-puts, a remote -control sensor and adigital channel display, plus pushbut-tons for up/down channel scanningand volume control and a poweswitch. Hidden behind a flip -downpanel are still more controls-mono/stereo selection for each input source;a normal/CATV mode selector for the105 -channel, cable -ready tuner; an up/down fine-tuning button; a "sound ex-pander" switch (which produces asynthesized "stereo" effect), and con-trols for bass, treble, stereo balanceand headphone level.

The remote control (included withthe unit) repeats the power, volumeand channel -scan buttons, and adds afew controls of its own. These include a10 -key, numerical keypad for direct -

access channel selection, an audio -mute switch, and a timer button whichshuts the system off after 30, 60 or 90minutes, depending on whether it'spressed once, twice or three times.

The rear panel holds all the connec-tions. In addition to the 75 -ohm "F"connector for the r.f. input, there arethree sets of video and stereo audio

inputs and two pairs of outputs-one tofeed a VCR for recording and one forconnection to the monitor. The audiooutputs to the VCR are unaffected bythe volume control, like tape outputs inaudio systems.

The monitor tested was the ModelAVM -195, with a 19 -inch screen andbuilt-in, 5 -watt audio amplifiers. How-ever, since I was testing the videocomponents as part of a total audio/video system, I used only the externalaudio components for the listeningtests.

Because my lab is not (yet)equipped with video test equipment,the two video components which forma part of the Pro-Ponent System werefirst sent to the CBS Technology Cen-ter in Stamford, Conn. That facility hasjust about the most sophisticated andcomplete video testing facilities in thecountry, and the data shown in theexpanded ratings chart was suppliedby them. I did, however, use the AVM -195 color monitor and the AVT-95 vid-eo control system in my lab and listen-ing room, hooking them up with therest of the Sanyo components.

Since the video component mea-surements may be unfamiliar to read-ers of Audio, some explanations maybe in order. Maximum usable lumi-nance is the maximum brightness thatcan be obtained from the picture tubeof a TV monitor (or, for that matter, a TVreceiver) before the picture begins to"bloom" or become defocused. The152 foot -lamberts measured for theAVM -195 monitor is an excellent resultand more than adequate for comfort-able viewing in a well -lit room. Horizon-tal -line resolution is a measure of howmuch detail you will be able to see in aTV picture. Typically, most completeTV receivers offer horizontal -line reso-lution in the range from 250 to 300lines. The 360 -line resolution offeredby the Sanyo monitor means that theresolution or detail of the reproducedpicture will be much closer to the maxi-mum that can be obtained with theNTSC transmission system used in theU.S. and Japan. Watching a picturereproduced on this monitor, you willprobably take back all the derogatoryremarks you've made over the yearsregarding our inferior television sys-tem. I know I did!

Black -level retention is the ability to

74 AUDIO/JUNE 1983

"The video monitor's360 -line resolution is veryclose to the maximumobtainable with the NTSCtransmission used here."

maintain a good, black background inthe presence of bright portions of avideo scene. I measured 90% for theSanyo monitor, a good -score thoughnot absolutely perfect. It's a lot better,though, than you are likely to get withan ordinary TV receiver. Video fre-quency response is directly related tothe earlier -mentioned horizontal -lineresolution. It is measured by using avideo test signal consisting of bursts offrequencies, ranging from 0.5 to 4.2MHz. What appears on the screen aregroups of vertical lines, each groupmore closely spaced than the previousone. If the right -most group can beidentified as individual lines rather thanas a continuous blur or as gray, thenthe system's response extends all theway out to 4.2 MHz and picture resolu-tion will be as good as it can be. Suchwas the case with the Sanyo AVM -195monitor.

Interlace describes the positioningof two successive "fields" which makeup a single "frame" in a video picture.In the U.S. NTSC system, there are 30frames per second and 60 fields. Thelines of two successive fields are sup-posed to be displaced slightly fromeach other, so that the 262 lines of theone field of a given frame fit preciselybetween the 263 lines of that frame'sother field. Thus, the two fields makeup a single picture or frame containing525 lines. If lines of the second field fallon top of lines of the first field (or arenot evenly spaced between them), thepicture loses vertical detail or resolu-tion, and a viewer is more apt to seethe picture as distinct lines when sittingclose to the screen. The best rating forinterlace would therefore be 50/50,which means that alternate field linesare exactly centered with respect tothe previous field lines. And it is that50/50 condition that CBS TechnologyCenter measured for the Sanyo AVM -195 monitor.

Specific comments concerning boththe Pro-Ponent audio and video com-ponents will be found within the ratingschart. In summing up this completehome entertainment system, I feel thatthe audio components were, on thewhole, well designed and nice to lookat, while the video components weretruly outstanding; hence the separateoverall ratings for the two halves of thissystem. Leonard Feldman

AUDIO/JUNE 1983 75

40.

. ,

_`"- rata:

EQUIPMENT PROFILE

PHASELINEAR9500COMPACTDISCPLAYERManufacturer's SpecificationsFrequency Response: 20 Hz to 20

kHz, ±0.5 dB.Dynamic Range: More than 90 dB.S/N Ratio: More than 90 dB.Channel Separation: 90 dB.Harmonic Distortion: Less than

0.005%.Wow and Flutter: Unmeasurable.Line Output Level: 0 to 2.0 V, vari-

able.Output Impedance: Less than 100

ohms.Power Consumption: 30 watts.Dimensions: 16.93 in. (43 cm) W x

5.2 in. (13.2 cm) H x 12.6 in. (32cm) D.

Weight: 17.6 lbs. (8 kg).Price: $995.00.Cqmpany Address: 4136 North

United Pkwy., Schiller Park, Ill.60176.

For literature, circle No. 90

roN

00

a_

76

41q,11.11

M//////////i/i/IIIII/Illiiiii111111111111ittt/7/./////,'/IllitiliiisiNIe.711111111111111111ti

..,././///1"////////17////i1 III/118111111111111111, I

0

pr 1D5E III1E/Ar Compact Digital Disc Player Model 95(X)

AUDIO/JUNE 1983

tIVIAWVX\VCSANAV...\\\\\\\\\

Although Phase Linear admits to having their Model 9500CD player manufactured off -shore, they are the first U.S.-based and U.S.-owned company to introduce a digital au-dio disc player for the now -standard Compact Discs devel-oped jointly by Philips and Sony. Representatives of PhaseLinear, now an Esmark Company (which also owns JensenSound Laboratories and recently acquired the Advent nameas well), tell me that some of the unusual user -featuresfound on the front panel of the 9500, as well as some of itsinternal engineering, were designed here and "contractedout" for manufacture abroad.

The Phase Linear 9500 is configured more like the Tech-nics, Sharp and Hitachi units than like the Sony CDP-101..That is, it features a swing -down hinged door which, whenopened, discloses a narrow slot into which a Compact Discis placed, label facing outward. On the Phase Linear,though, it is then necessary to push the disc down until it isfully inside the door and then to manually close the door,much as one would with a front -loading cassette compart-ment. I suspect that some users may actually prefer manualcontrol over their discs rather than the automatic loadingfound on other CD players, which seem to swallow the disconce it is inserted in the slot and then close the door bymeans of a motor.

A display area to the right of the disc compartment doorprovides a wealth of information concerning the disc beingplayed. A ruler -like scale with a moving LED behind it tellsapproximately how far into a record the laser pickup hasprogressed. A digital readout displays time into the giventrack being played or total time from the start of a disc,depending upon whether or not the "Total Time" touchbutton, located elsewhere, is depressed. Surrounding thistime display are tiny LED indicators which illuminate whentotal time is being displayed, when the memorized pro-grammed selections are being played in selected order,and when a separate "Index" button is touched. (Moreabout the "Index" function in a moment.) A separate digitaldisplay shows the current track being played or selected.Three more indicator lights along the top of the display areashow whether the player is in "Stand By," "Pause," or "Play"mode.

Basic operation of the 9500 is handled by seven largetouch -pads, the largest of which is labelled "Play/Start." A"Stop/Eject" control terminates play if a disc is playing or,pressed a second time, opens the disc door and ejects thedisc from the door slot enough so that it can be removed.The "Pause" control interrupts play but keeps the laserpickup precisely at the point of interruption. Touching"Pause" again causes play to resume. Forward and reverse"Skip" controls, when touched, move the laser to the startof the next or previous selection on a disc. "Fast Forward"and "Reverse" controls, when held in their depressed posi-tions, move the laser pickup rapidly in either direction whilethe track and time display follow the movement, allowingyou to start playing at any predetermined track or time intoa track.

To the right of these large touch pads are smaller keysnumbered from 0 to 9. These are used with the "Memory"and "C/AC" (Clear/All Clear) keys for preprogramming asequence of selections in any order that you choose. Some

AUDIO/JUNE 1983 77

"The Phase Linear 9500has some of the mostinnovative conveniencefeatures found on anyCompact Disc player."

0

10

03 20

30

-40

-5060

c:c 70

80

90

20

RESPO SE

SEPARATION, L TO

"I" ;1ASEPARATION, R TO

1 11111-

L

100 1k1

k 20k

FREQUENCY - Hz

Fig. 1-Frequencyresponse and stereoseparation.

0.0;0

0.009

0 008

0.007

0.006

0.005

aoon

0 003

0.002

0.001

20 100 Ik 10k 20k

FREQUENCY - Hz

Fig. 2-Harmonicdistortion vs. frequency.

of the most innovative convenience features I have yetencountered on any CD player are activated by the lastseries of touch buttons, located at the extreme right of thefront panel. When touched once, the uppermost of these,labelled "Phrase," sets a "mark" for the particular locationbeing played. If the "Phrase" button is touched a secondtime, a second mark is set, and the unit repeatedly plays thesection between the two marks, over and over, until theorder is cancelled with the all -clear button. This proved tobe extremely useful in my study of the player when I wantedto hear a musical phrase (or section of a test tone) againand again for careful analysis and study.

The second button in this row of switches is identified as"Index." While my present collection of CDs could not beused to check out this feature, I understand that in thefuture, some Compact Discs-particularly classical workswhich have very long selections, such as complete move-ments, as single "track" numbers-may have additional"index" codes within each track. These codes would belisted on the record jacket and could be accessed forlistening to a particular portion of a long movement or track.If discs encoded with index points are played, and if thesepoints are called up by the user, the track display continuesto show the selected track, while the time display switchesfrom a "minutes: seconds" arrangement to a two -digit repre-sentation of the "Index" number called for.

The third button in this group is labelled "Time" and maybe used to access any point in a given track. The user firstpunches in the track number on the numeric keyboard, thenpunches in the time, in minutes and seconds. After that, the"Time" button is depressed to let the microprocessor knowthat you not only want a given track but a given time into thattrack. Then you either press "Play" or, if you want to pro-gram several such access points in sequence, "Memory."

A "Memo Call" button, when depressed, reviews all of thetrack numbers you have programmed into memory by flash-ing each of them on the track display for a couple ofseconds. A "Repeat" button is used for playing any giventrack over and over again. The last button in this group is the

"Total Time" button whose function I have already men-tioned.

The rear panel of the Model 9500 is equipped with theusual left and right output jacks and an output level control.

MeasurementsFigure 1 is a point -by -point plot of the playback frequency

response (upper curve) and channel separation capabilityfor the Phase Linear CD player. You may recall that my testdisc, supplied by Sony, does not include frequencies below100 Hz; hence the abrupt termination of the graph plots atthat frequency. As I have mentioned in other CD playerreports, however, I have no reason to believe that responseis any less flat below 100 Hz than it is over the rangeincluded in this special test disc. If my digital -readout dBmeter can be trusted, maximum departure from flat re-sponse in the range covered was no greater than 0.2 dB atany test frequency, and, at most of the spot -frequenciesobserved, the error was either nonexistent or read +0.1 dB.Separation, depicted by the lower curve in Fig. 1, rangedfrom 81 to 90 dB for the test frequencies available (100 Hz,1 kHz, 10 kHz and 20 kHz).

Figure 2 is a plot of harmonic distortion versus frequency.Total harmonic distortion hovered around the 0.004% pointfor most of the test frequencies included in the test disc, andreached a "high" (if I can, in all conscience, use that term)of 0.007% at 20 kHz. Purely for statistical interest, this is thelowest distortion I have measured for any CD player to date,though it is only of academic interest as far as sound qualityis concerned. It would make little difference in what youhear even if the harmonic distortion were 10 times greater.As I have pointed out in other tests of CD players, withdigital audio, THD tends to rise as signal levels decrease.That being the case, I also checked distortion at levels of-10, -20 and -60 dB for a 1 -kHz test tone. At -10 dB,THD rose to 0.008%. At -20 dB, the distortion reached astill -inaudible level of 0.023%, while at -60 dB, the readingwas 0.18%. Bear in mind, however, that 0.18% is equivalentto -55 dB below reference level. And reference level, in

78 AUDIO/JUNE 1983

this case, is already at -60 dB. What I suspect, therefore(and oscilloscope observations confirmed my suspicions),is that the distortion analyzer was reading quantization noiserather than actual harmonic distortion during the -60 dBtests.

These decreasing -amplitude 1 -kHz test tones were usedto check linearity of the system as well, and perfect linearitywas observed down to 60 dB below maximum levels. At-80 dB, an error of 1.7 dB was noted; at -90 dB I was tooinvolved in the noise floor of the system to really judgelinearity with any degree of precision.

SMPTE IM measured 0.0085% at 0 dB (maximum) level,increasing to 0.02% when I played the next track with a testtone of 400 Hz + 7 kHz, recorded 10 dB lower. For the twin -tone IM test tones, I recorded a reading of 0.0018% CCIF 1Mat 0 dB recording level and 0.002% at -10 dB level.

Signal-to-noise ratio measured an incredible 96.7 dB,unweighted, and if I added an A -weighting network to themeasurement system, it increased to 100.5 dB. These num-bers are higher than those recorded for any CD player todate.

De -emphasis was as accurate as my measurement sys-tem could detect-to within 0.1 dB-for the 1-, 5-, and 16 -kHz test tones used to check this characteristic.

Use and Listening TestsMy collection of Compact Discs has grown somewhat

since I last tested a CD player, but not by very much. I nowown a grand total of an even dozen discs (11 if you excludethe test disc). Two of my most recent acquisitions are aLondon recording of Stravinsky's Rite of Spring, with AntalDorati conducting the Detroit Symphony, and a DeutscheGrammophon recording of Mahler's First Symphony, withClaudio Abbado conducting the Chicago Symphony Or-chestra. If you are familiar with either of these selections, I

"THD hovered around0.004% for most testfrequencies. The 'high' (if Ican call it that) was0.007%, at 20 kHz."

need not tell you that the dynamics and transients containedin them are awesome, to say the least. For the first time, I feltthe total excitement and involvement in the music that I hadpreviously experienced only when hearing these works per-formed in live concert.

But you don't have to be a classical music buff to deriveexcitement and pleasure from digital discs. At a recentseminar which I gave at an audio dealer in Danbury, Con-necticut, I happened to play some cuts (we need' a newterm here, for sure!) from the digital disc version of BillyJoel's The Stranger. By a happy coincidence, one of thesales people at that store had a copy of the analog LPversion of the same record. Both discs had been made fromdigital master tapes. We did our best to synchronize the LPwith the CD version. The fact that the surface noise on theLP totally disappeared when I switched to the CD versionwas just a small part of the total difference. Played alone,the LP sounded fine. Played against the CD, all of us weresuddenly aware of how much the LP version had beencompressed. As one seminar attendee put it, the Billy JoelLP sounded "squashed," while the CD edition soundedopen, "real."

That's been my experience with every CD player I'vetested. Add to this wonderful sound the complete versatilityand ease of operation found in the Phase Linear 9500, andyou have an outstanding product. It seems very appropriatefor the reincarnated company, under its new ownership, tobe among the first American firms to deliver a CD player.Their latest line of amplifiers was specifically designed tohandle the extremes of dynamic range encountered duringthe playing of digital discs. The 9500 used with, say, theirnew DRS 900 power amplifier (which I hope to review in afuture issue) should make an unbeatable combination thatwon't place any limitations on the inherent capabilities of theCompact Disc system. Leonard Feldman

Track N.

Track Tim-

-

Head Location

.111H1 111

Play ;Start Stop, Eye:8 9 Phrase

rhilvz

Pau

Time

Slop Slop Memo can

Repeat

ReverseMemory 0 Trill Tar r,

The 9500's display/control panelincludes four basicsections: Operatingstatus lights,basic functionpushbuttons,memoryprogramming, andmemory or time -track readoutcontrols.

AUDIO JUNE 1983 79

EQUIPMENT PROFILE

Manufacturer's SpecificationsSpeeds: 33Y3 and 45 rpm, electronic

switching and fine adjust.Motor Type: Brushless d.c. servo.Drive Type: Belt.Platter: 11.2 lb., cast alloy with

damping.Suspension: 20 -lb. subassembly, 4 -

point system.Rumble: -60 dB unwtd.Wow and Flutter: 0.04% wtd. rms.Suspension Frequency: 2.55 Hz.Weight: 44 lb. (20 kg).Dimensions: 71/2 in. (19.05 cm) H (to

top of dust cover) x 201/4 in. (51.4cm) W x 161/2 in. (41.9 cm) D.

Price: $750.00.Company Address: P.O. Box 7075,

Berkeley, Cal. 94707.For literature, circle No. 91

80 AUDIO/JUNE 1983

SOTA, located in Oakland, Cal., is the only company inthe U.S.A. presently making turntables. This is an amazingfact since, in past years, some of the finest turntables in theworld were made in this country. All of the turntables soldhere in the past few years have been imported, even thoseof audiophile quality. Rather than merely copying somepreviously successful turntable, Rod Herman, a mechanicaldesign engineer and British expatriate, and David Fletcher,a physicist formerly with the University of California, havetaken a fresh look at the functions a turntable is meant toperform and come up with a design which has many uniquefeatures. They have called their turntable the Sapphire, afterthe material used for the precision -ground thrust plate uponwhich the main bearing turns.

SOTA stands for "State of the Art," and the Sapphireturntable is designed and manufactured with state -of -the artgoals in mind. SOTA also makes the lower cost GEM turnta-bles for Sumiko of Berkeley, Cal. The GEM -707 at $725 andthe GEM -747 at $800 have many of the same design fea-tures as the SOTA Sapphire.

The objective technical measurements and subjectivelistening evaluations of the Sapphire turntable were madeusing the Sumiko MDC-800 tonearm and the Talisman Smoving -coil phono cartridge. Comparisons between thiscombination and my present reference system were madeby a listening panel. My practice is to make the technicalmeasurements prior to the listening tests to insure that theturntable, tonearm and cartridge are functioning at theirbest and that no hidden defects, which could have beencorrected, can invalidate these results. During the playing ofeach selection, members of the listening panel are asked tomake notes, which will be discussed and compared later.There is no talking during the playing of selections, and thepanel members are asked not to make any outward reac-tions which might be distracting.

After the listening tests, I 'try to correlate the comments ofthe listening panel vidri the technical measurements. Duringthe technical evalunns, many measurements are madewhich never appear in the published report They are nec-essary, however, to assure that nothing has been over -

MEASURED DATASpecificationSpeed StabilityWow DIN unwtd.

DIN wtd.Flutter ... DIN unwtd.

DIN wtd.W&F DIN unwtd.

DIN wtd.Drift Short-term

Long-termRumble . Unwtd.

Wtd.Suspension Resonance

Measured Comment± 0.18% Excellent

0.24% Very Good0.11% Very Good0,13% Excellent0.03% Excellent0.27% Very Good0.12% Very Good

+0.32% to- 0.27% Very Good

±0.10% Excellent- 65.2 dB Excellent- 84,5 dB Excellent

2.67 Hz WellDamped

PAD SPINDLE -4. -

THRUST BALL BEAR'NG

BEARING SLEEVE

Fig. 1-Side-view drawingshowing details ofbearing and thrust disc.Note that bearing is at theplatter's center of gravity.

PLATTER

SAPPHIRE DISC

STATIC THRUST SHAFT

SUBASSEMBLY

looked which might affect performance and to provide in-sights which help in correlating the subjective judgments ofthe panel members. In this report, the comments made bymembers of the listening panel and the technical data arepresented together and correlated where possible.

The "turntable that Newton would have built," as SOTAdescribes the Sapphire, incorporates many ingenious fea-tures. The main bearing, instead of being at the bottom of abearing well as with other turntables, is up at the center ofgravity in the middle of the turntable platter. Figure 1 showsthe bearing container (it would be silly to call it a well), whichis an integral part of the platter and rotates with it. Alsoshown in Fig. 1 are the two matched, sintered, bronzebearing sleeves; the sapphire thrust plate, and the thrustball bearing attached to the static (non-moving), 0.55 -inchdiameter thrust shaft. This design prevents any tendency towobble, because both the 11 -pound mass of the aluminumplatter and the belt which drives the platter at the rim aredirectly in line with the main bearing. The drawing alsoshows that most of the platter's mass is near the rim,providing a flywheel effect which improves speed stability.The platter is not removable and is shipped from the factorywith transit screws which lift it to release the sapphire thrustplate from contact w th the thrust shaft's ball -bearing tip.Note in the drawing that the platter pad, which is perma-nently attached, extends higher than the center and edge ofthe platter and allows the record to fit snugly so that unwant-ed mechanical energy may be dissipated. SOTA warnsagainst the use of heavy record clamps and recommendsonly light, friction -lock clamps such as the Sumiko BA -20stabilizer clamp I used.

The subchassis, upon which the turntable bearing andtonearm are mounted, hangs by four springs from the turn-table base plate. Winding the springs in clockwise andcounterclockwise pairs, and mounting them diagonally fromeach other, effectively cancels the tendency for rotationalmotion when the springs are flexed. The springs arematched by the factory to resonate with the mass of theturntable at 2.5 Hz. Since the Sapphire is shipped withoutan arm, the mass of the tonearm is unknown but is taken into

AUDIO/JUNE 1983 81

"The Sapphire providesisolation from outsidemechanical energy betterthan any turntable I haveseen so far."

3%

.03

.01

.003

.001

.0003

6.75000 HZ amsammz

-44.3 488

10148 100111

E.M.LONG ASSOCIATESS.O.T.A. SAPPHIRE TURNTABLEWOM4FLUTTER SPECTRUM830124-14

_ -

0

Fig. 2-Computer plot ofwow and flutter spectrum,from 0 to 100 Hz.Frequency components

are evenly distributed andvery low in level, bothexcellent.

111.1,11.MMONI111,11111

Fig. 3-Speed drift over a41-S period. The variationat 5.6 Hz is related to one

3150.000 HZ CURSOR-40 -32 -24 -16

0

-10

-20

30

40

-50

-60

-70

PO

revolution at 331/3 rpm.The drift varies between+0.32% and -0.27%.

-21.0 41EIR

8 08. *8 .16 24 2 .40

E.M.LONG ASSOCIATES4.0.7.A. SAPPHIRE TURNTABLE

- SPEED STABILTY 33.3RPM CBHZ-DIV)830128-06

om.104/SEO

ill 4 1 1 I6 eJi

Nri*rier,

1, ,

Fig. 4-Speed stabilityreferenced to 3,150 -Hztone on B & K 2010 test

record. The variation isvery tight compared tomost turntables.

consideration: A 2.5 -pound bag of shot is supplied, and theturntable is set up and balanced with this in place on thetonearm mounting board. After the tonearm is mounted,some of the shot is poured into a well near the tonearm untilthe total mass of the tonearm and the shot equals 2.5pounds. When this is done, the turntable is rebalanced. Bythis technique, arms of up to 2.5 pounds can be used withthe Sapphire while still maintaining the 2.5 -Hz resonancewithout any adjustment of the springs. The base, from whichthe subchassis is suspended, has over twice the mass ofthe subchassis and platter. I think this is very sensible sincesuspending a heavy subchassis from something light andflimsy, which itself is susceptible to environmental vibration,is no solution to, and indeed often only compounds, theisolation problem. The SOTA Sapphire turntable providesspeeds of 331/3 and 45 rpm with pitch controls for eachspeed. The standard base is ash finished in oak, while anoptional base of koa wood is $100 more.

MeasurementsSome of the data in this report appear different from those

in my previous reports because a digital plotter was usedinstead of the usual photo of the display screen. The digitalplotter is connected via the IEEE -488 buss to a Nicolet660A -2D dual channel fast fourier transform analyzer (FFT),a Nicolet Explorer III dual -channel digital -storage oscillo-scope, and a computer controller. After each test, the data,which have been analyzed and stored by the appropriateinstrument, are transferred to the plotter. I hope this dataformat provides greater clarity than the photos used previ-ously.

Speed accuracy and stability are very important aspectsof turntable performance. While the simple wow and flutternumbers shown in the "Measured Data" table are quitegood, the data shown in Fig. 2 are even more revealing ofperformance. This shows that the wow and flutter spectrumis well distributed, with no prominent component whichwould tend to add coloration to the sound. The listeningpanel made favorable comments about the clarity of thereproduction from the SOTA turntable, and lack of flutterseems to be a major reason for this impression.

Figure 3 is a 41 -second recording of the variation in the3,150 -Hz wow and flutter test tone of the B & K 2010 testrecord. The output is taken from the drift output of the wowand flutter meter. At precisely 3,150 Hz, the d.c. output is 0V. If the tone increases in frequency, the d.c. voltage goespositive, which indicates that the turntable speed has in-creased; the d.c. output voltage goes negative for a de-crease in speed. The variation shown occurs at exactly onerevolution of the platter at 331/3 rpm. The short-term drift isfrom +0.32% to -0.27%. A very slight average drift can beseen over the 41 -second period, but it is well within 0.1%.Figure 4 shows the same data in another form, which indi-cates how accurately the speed is maintained in terms ofthe same 3,150 -Hz tone. In this case, the major spectralcomponents, down to about 20 dB below the average,indicate that the speed variation is about ± 0.18%. Bear inmind that all these tests include the speed stability prob-lems inherent in any test record. The data presented in Figs.3 and 4 show that the SOTA Sapphire turntable has excel -

82 AUDIO/JUNE 1983

"The listening panelcommented favorably aboutthe clarity of reproduction.The lack of flutter seems amajor reason for this."

lent speed accuracy and stability, and the comments madeby the listening panel with respect to the clarity and defini-tion of the sound reproduction attest to this. In fact, compari-sions between the SOTA and the reference turntable, in thisregard, caused the panel much difficulty; the conclusionwas that comments about the performance of each turnta-ble, when playing even difficult program material such aspiano, left no clear winner between the two.

Figure 5 shows the rumble spectrum of the SOTA Sap-phire turntable. In this case, 0 dB is referenced to 10 cm/S,which is the standard level for rumble measurements. Themain component of rumble at 10 Hz is due to the naturalresonance of the tonearm mass reacting with compliance ofthe cartridge. The level of this component is 36.8 dB belowthe 10 cm/S reference and is very good. The rumble spec-trum is very smooth, with no components which would tendto color the background noise. The component at about 23Hz is an artifact of the B & K 2010 test record. The ''Mea-sured Data" table shows the unweighted rumble is -65.2dB, which is better than the 60 dB minimum claimed, whilethe weighted rumble is -84.5 dB. When playing copies ofidentical records simultaneously on both the SOTA and thereference turntable, no difference in level or coloration of thebackground noise could be distinguished between the two.

In the past few years, a great deal of attention has beendirected to the problem of energy control and dissipation inphono sound reproduction. The problem can be dividedinto at least three separate areas: Energy internal to the disccaused by the playing of the record by the phono stylus,external mechanical vibrations transmitted through the sus-pension, and acoustical energy transmitted through the air.These three forms of energy are picked up by the stylus andadded to the desired signal. The quality of the sound repro-duction is improved if they are reduced.

Figure 6 shows the average level of spectral componentscaused by a series of mechanical impulses to the edge of astationary record while the phono stylus is resting in agroove. These mechanical impulses cause energy to bereleased in the record. The mechanical energy versus timeis displayed in Fig. 7. The higher frequency energy lasts foronly about 30 mS, but the low -frequency energy at about 60Hz lasts for over 200 mS. This indicates that the SOTAturntable mat (which, by the way, is nonremovable) is quiteeffective in damping high -frequency energy but is less ef-fective at lower frequencies. The greatest energy level is at62.5 Hz and 162.5 Hz but is at least 30.7 dB down from the0 dB = 1 cm/S reference level. There is, however, a broadband of energy from about 880 to 1,350 Hz-which couldbe the reason that all of the panel members commented thatthe sound reproduction, particularly brass and strings, wasbrighter and sharper from the SOTA than from the referenceturntable.

One of the requirements for a good turntable is that it bewell isolated from external mechanical forces which couldinterfere with sound reproduction. To be state of the art, it isnot enough that a turntable be isolated from forces whichcould cause catastrophic interference effects; its suspensionsystem must provide a high degree of isolation from anyintrusion of outside mechanical influences into the repro-duced sound. The SOTA Sapphire provides this type of

-10

da

20

30

-40

50

60

-70

-60

10.00000 HZ CURSOR5Hz

E.M.LONG ASSOCIAS.O.T.A. SAPPHIRRUMBLE SPECTRUM630125-03

r

-36.B 115F1

SOH' 5001+1

ESTURNTABLE

088. 10CW SEC

11=MM'

M111110177Fig. 5-Rumble spectrum. tonearm/cartridgeMain output is from resonance at 10 Hz.

0

oe

-'0

-20

-30

-40

-50

-60

-70

-80

182.5000 HZMASOR

5 Hz

-30.7 586

500H, 51,11,

E.M.LONG ASSOCIATESS.O.T.A. SAPPHIRE TUFNTABLE

- MECHANICAL IMPULSE TOB30128-05

058. ,CM/SEC

RECORD

-1.--.1-.-

Fig. 6-Spectrum (to5 kHz) of vibrationscaused by mechanicalshock to edge of record,with stylus resting in

groove. The damping ofinternal energy is verygood, with the majorcomponents at 62.5 and162.5 Hz.

isolation better than any turntable I have seen or tested so far.Figures 8 and 9 display the spectrum and the output versustime from an external mechanical shock applied to theextremely massive test stand upon which the SOTA turntablewas mounted during the laboratory tests. The spectruminformation of Fig. 8 shows that the level of any individualfrequency component is greater than 30 dB below the 1 cm/Sreference level. The output versus time response of Fig. 9indicates that the higher frequency components are greatlydiminished within the first 200 mS and that the resonantfrequency of the turntable mechanical suspension is 2.67 Hz,extremely close to the 2.55 -Hz specified.

Figure 10 shows the spectrum due to the presence of asound pressure level of 100 dB at the surface of the turnta-ble platter. The stylus is once again stationary in a groove

AUDIO/JUNE 1983 83

"The rumble spectrum isvery smooth, with nocomponents which wouldtend to color thebackground noise."

Fig. 7-Output vs. timeresponse of the impulseof Fig. 6. The spectrum of

Fig. 9-Output vs. timeresponse of the impulseof Fig. 8. The low -frequency oscillation is at2.67 Hz and is due to the

Fig. 6 was derived fromthis using a fast fouriertransform analyzer.

mass of the turntable andthe compliance of thesprings. The period ofmeasurement is 2.05 S.

-2

625.0000 HZ CURSOR50Hz

-43.2 ago

500Hz 5kII

E.M.LONG ASSOCIATESS.O.T.A. SAPPHIRE TURNTABLEMECHANICAL SHOCK TEST630204-07

0,16.icm/SE0

.II.

.

40

5

6

70

-e

Fig. 8-Spectrum (to5 kHz) of vibrationscaused by mechanicalshock to massiveplatform on which the

O

de

20

-30

40

-50

60

-70

-60

Fig. 10-Spectrum (to100 Hz) of vibrations froma 100 dB acoustic field atthe cartridge position.Cartridge is resting in a

2.75000 HZ CURSOR

IN?

turntable rested. Theturntable exhibitsexcellent isolation fromexternal shock.

-26.3 OBR

MHz 100H:

E.M.LONG ASSOCIATESS.O.T.A. SAPPHIRE TJRNTABLE

-ACOUSTICAL ISOLATIO4630203-10

OdB 1CM/SEC

TEST -

..

groove near the middle ofa record. Isolation fromthe acoustic field isexcellent.

near the middle of the record. The major output is near thesuspension resonance, but it is 26.3 dB below the 1 cm/Sreference, which is very low. The next highest output is, asmight be expected, at the tonearm/cartridge resonance of10 Hz. There is output of significance at about 60 to 65 Hz,but even this is at -34 dB.

Use and Listening TestsThe overall impression of the listening panel was corrobo-

rated by the measurements very well. The comments weremostly directed toward a very slight brightness or sharp-ness in the sound when compared with the reference turnta-ble. The data in Fig.8, which shows the effect of the energystored in the disc itself, reveal that the energy between 880and 1,350 Hz is not dissipated very quickly (even though itis at a low level) and therefore does tend to color the sound

and add a bit of brightness. This brightness was only notice-able when recordings of strings or brass were played simul-taneously on the SOTA and the reference turntables, andthe two discs are directly compared by switching betweenthem. In fact, the listening panel had great difficulty indiscerning any difference between the turntables on mostprogram material. The deep bass was solid, the upper basswas well defined, the quality of male voice was very good,and the stability and clarity of the stereo image were goodon both. The point which put the SOTA Sapphire turntableahead of the reference turntable was its stability and isola-tion from environmentally induced mechanical or acousticalenergy which could affect the sound. I feel that the SOTASapphire turntable is excellent at any price. At its present,reasonable price, it is an exceptional value.

Edward M. Long

84 AUDIO/JUNE 1983

You'll be soldon our DRS 900amplifier afterjust one peak.Our new DRS' 900 amplifier will bring youas close as you can get to concert hall soundwithout buying a ticket. How? Power and lotsof it. And after all, who knows more abouthigh power amplifiers than Phase Linear? Webecame known for them back in the days .

when everyone's idea ofgood stereo was loud stereo.If you could blow the win-dows out of your home,you had a good stereo.And nothing cou:d blowout windows like anamplifier from PhaseLinear. Well, the volumeera is over. The quest forpurity is on. The troubleis, you just can't

get pure soundreproductionout of a lowpower amplifier.You need lots of

power... power forpurity. Advances in recording

- technology like direct -to -disc anddigital audio disc recordings re-quire enormous amounts of peakpower. Without it, he amplifiersimply clips the peaks leaving youwithcut the full musical experi-ence. For example, accuratelyreprocucing the final cannon shotfrom a digitally recorded version of

Tchaikovsky's 1812 Overturecan require 900 watts ofpeak power! And that's atreasonable volume levels.That much power is neededbecause the dynamic range(the ratio of the loudestnote to the residual noise)of a digital audio disc isabout four times that of aconventional record. phase liner

Power for Purity

Our DRS 900 handled the previouslymentioned cannon shot. No clipping,no distortion. Yet, the DRS 900 isconservatively rated at 150 watts perchannel RMS (see specifications). Yousee, efficient power is he key. The DRS900 has a dual voltage power supply.It operates at an efficient 150watt capability. Then, when

the music ap-proaches a peakrequiring moredynamic head-room (more powerto keep it fromclipping), the

secondarysupply kicksin, instantlyproviding upto 900 watts ofpeak powerper channel. Aconventional150 watt ampli-fier has a peakpower rating of just about 3C0 watts.Keep that in mind the next time you're com-paring amplifiers. Don't go by RMS alone.You have to compare dynamic headroom,too. When you do, you'll be sold on our DRS 900.

See the entire line of Phase Linear audiocomponents atyour PhaseLinear Dealer,today. For theaddress of thedealer nearestyou, call us tollfree at (800) 323-4815. In Illinois call (800) 942-

8833. Or write us at 4134 N.United Parkway, Schiller Park,IL 60176. Oil, and rememberto give us your address so wecan send you a copy of "ThePhase Linear Report: Powerfor Purity." It's an excitinganalysis of audio amplifica-tion in the eighties. We think itshould be required reading foranyone serious about audio.

DRS 900 SPECIFICATIONS150 Watts per chennel continuouscutput power. minimum RMS into 8chms. with no more -hen 015°° totalharmonic distort on. 2C-20kHz. 900Watts peak per chan -le momentarycutput power into 8 ohms with nomore than .02°0 THD 20-20kHz.

Enter No 19 on Reader Service Card

EQUIPMENT PROFILE

MAGNAVOXFD1000SLCOMPACTDISC PLAYER

Manufacturer's SpecificationsFrequency Response: 20 Hz to 20

kHz, ±0.3 dB.Dynamic Range: Greater than 90

dB.S/N Ratio: Greater than 90 dB (20 Hz

to 20 kHz).Channel Separation: 86 dB (20 Hz

to 20 kHz); 90 dB at 1 kHz.Total Harmonic Distortion Plus

Noise: Less than 0.005%.Wow and Flutter: Unmeasurable,

quartz crystal precision.Line Output Level: 2 V rms.Power Consumption: 20 watts.Dimensions: 12.6 in. (32 cm) W x

2.87 in. (7.3 cm) H x 10.51 in. (26.7cm) D.

Weight: 11 lbs. (5 kg).Price: $800.00.

Billed as the smallest Compact Disc player in the world,this attractively styled unit is also the lowest priced of threemodels to be offered by Magnavox. Magnavox, as youprobably know, is a wholly owned subsidiary of North Ameri-can Philips. And North American Philips, in turn, is ownedby Philips of Holland, to whom must go the primary credit forthe development of the CD format, which has already be-come an international standard. Although credit for the discand player is generally shared by Philips and Sony, the truth

Company Address: c/o NAP Con-sumer Electronics Corp., P.O. Box6950, Knoxville, Tenn.

For literature, circle No. 92

is that Sony's primary contribution was in the area of theerror -correction systems that were ultimately adopted. Itwas Philips which began work on the digital disc idea wayback in 1969 and 10 years later showed the first workingsystem to the European press.

The unit I tested, in fact, bore the model number CD -100,suggesting that it was actually a sample of the Philips modelbeing sold in Europe, with its power supply modified for usein the U.S. We are told, however, that the configuration and

86 AUDIO/JUNE 1983

all of the features of this model are otherwise identical to theMagnavox FD1000SL, which will be the American designa-tion for this truly compact Compact Disc player.

Magnavox maintains there are subtle differences in thequality of sound reproduction between various manufactur-ers' CD players, and they attribute this to technical differ-ences in the way the players reproduce sound. The maindifference is in the signal -conversion process from digitalback to analog. All of the units I have tested to date (with theexception of the Phase Linear Model 9500) use straight 16 -bit D/A converters with steep analog filters. Some listenersmaintain that the use of a sharp cutoff filter results in consid-erable phase shift in the 20 -kHz region; they perceive thisas detrimental to proper stereo imaging and reproduction oftransients.

The Magnavox player incorporates three techniques thatare said to provide the effectiveness of a pure 16-b t sys-tem, but which require a simpler digital -to -analog converterwith simpler filters. First, "oversampling" is used. Th s hasthe effect of reducing noise in the audio band by an addi-tional 6 dB. The technique involves sampling the digitalsignal at four times the normal rate, thereby distributing thenoise over a broader spectrum. Secondly, digital filtering isused to remove ultrasonic components while maintainingphase linearity up to 20 kHz. Finally, noise shaping is usedto reduce noise in the audio band by an additional 7 dBwhile increasing noise outside the audio band. The unwant-ed high -frequency noise is then eliminated with simple ana-log filters.

Unlike any of the CD players I have previously tested, theFD1000SL is a top -loading unit. Depressing a designatedarea on the see-through hinged door on the player's topsurface causes that door to pop open. The Compac: Disc issimply placed on the exposed center spindle, and the dooris closed manually. All remaining controls and displays areon the gently sloping front surface. A power on -off pushbut-ton is at the extreme left. A display area labelled "TrackProgram Selector" occupies the same left -to -right length ofthe sloped surface as does the disc -loading door on the topsurface, making for an extremely pleasing and integratedlook. When power is first applied, a bank of green LEDs,numbered from 1 to 15, illuminates. If the "Play" button tothe right of the display area is then depressed, disc playingwill commence from the first track and an additional row ofLEDs below the "program" LED bank will display the currenttrack being played. "Pause" and "Stop" buttons are locatedalongside the "Play" touch button. An additional LED lightsup in the display area when the "Pause" button is activated.Touching the "Pause" button a second time causes ,play toresume and extinguishes the "Pause" LED.

In addition to this straightforward approach to the playingof Compact Discs, the FD1000SL offers several otl-er op-tions, including programming of desired selections on adisc in any given order. Four tiny touch buttons furthe to theright are identified as "Select," "Store," "Cancel" and "Re-peat." Pressing the "Repeat" button causes the entire discto be played over and over again until the button is de-pressed a second time or until "Stop" is depressed. While inthe repeat mode, another LED in the display area lights upto indicate that fact. The three remaining buttons in this area

Booklet, demo disc andcleaning cloth packed with the player.

provide the user with two different methods of program-ming. The "Select" button, when depressed, moves the"track" LED in the display, one track at a time, to anydesired track from 1 to 15. When the desired track you wantto hear first is indicated, touching the "Store" button placesthat track number in "memory." By repeating this sequenceof operations, a method referred to in the owner's manual as"Add -In Programming," you can program in as many tracksas you like, in any order you choose.

An alternate method of programming, called "Take -OutProgramming," is used if you want to hear most, but not all,of the selections contained on a particular disc. In that case,the "Select" button is used to bring the moving LED to thetrack that you don't want to near, and the "Cancel" button isthen touched. Upon completing this routine, the appropriateLED in the upper bank of "Track Program Selector" LEDs isextinguished, indicating that that particular track will beskipped when it is reached. The procedure is repeated untilall undesired tracks have been selected. If the "Play" buttonis then depressed, disc play will commence and will pro-ceed in order, from track to track, skipping only those tracksthat you have "cancelled."

The remaining two touch buttons on the sloped frontpanel are "Search" buttons that are used to advance thelaser rapidly in either forward or reverse direction. Althoughthere is no sound heard when using the "Search" buttons,the current track being scanned at any instant by the laserpickup is indicated by an appropriate LED in the display. Ifyou should inadvertently hold down a forward or reversesearch button so that the laser reaches the end (or thebeginning) of the disc, an "Error" light will come on.

In this Magnavox player, the emphasis is clearly on purityof sound reproduction and ease of programmability. Certainfeatures I have encountered on other CD players have beenomitted, however. For example, no time indications areprovided either as to time remaining on a disc or time into agiven track being played. No doubt some of Magnavox'smore expensive models to be offered in the future willincorporate additional features.

AUDIO/JUNE 1983 87

"In this Magnavox player,the emphasis is clearly onpurity of soundreproduction and ease ofprogrammability."

0

- I0

-20

- 30

40

50

60

70

-BO

RESPONSE

- 90

20 100

SEPARATION, R TO L

SEPARATION, L TO R

Fig. 1-Frequencyresponse and stereoseparation.

0.010

0.009

0008

0.007

0.006

0005

0.004

0.003

0002

0.001

10k 206

FREQUENCY- Hz

111111111111

11111111111 M1111111111.1111a1111111111111111111 =111111111111111111111111111

111111111111=M111.11111111111111111flIMMIIIIIIIIIM11111111111111111Mu111111111111MMIIMMIIIIII111111111111mmiisammislill

Iliplimm111111i11111111111 111111n11111111111111111

20 100 I k

=REGLIENCY- Hz

Fig. 2-Harmonicdistortion vs. frequency.

10k 20k

MeasurementsA point -by -point plot of frequency response (upper curve)

and channel separation capability for the MagnavoxFD1000SL is shown in Fig. 1. Maximum departure from flatresponse in the range covered by the test disc (100 Hz to 20kHz) was never greater than 0.2 dB, and even that deviationwas noted only for the 18- and 20 -kHz test signals. Separa-tion, represented by the lower curves in Fig. 1, ranged from83 to 87 dB for left -to -right channel crosstalk and from 86 to87 dB for right -to -left channel crosstalk.

Harmonic distortion versus frequency at 0 dB is shown inFig. 2; readings ranged from 0.002% to 0.004%. At the -10dB level of the 1 -kHz test tone on the disc, THD rose to a stillcompletely insignificant 0.0085%. At -20 dB level, THDincreased somewhat further to 0.023%.

Decreasing -amplitude 1 -kHz test tones were also used tocheck linearity of the playback system. Absolutely perfectlinearity was noted from 0 dB level all the way down to -60dB. At -80 dB, linearity seemed to be off by 1.0 dB, and at

- 90 dB I read an output of - 88 dB, which may well havebeen residual noise in my test setup rather than actualdeparture from true signal linearity.

Signal-to-noise ratio measured 92.5 dB, unweighted, in-creasing to 99.5 dB when an A -weighting filter was insertedin series with the measuring instrument. At 0 dB recordinglevel, SMPTE IM measured 0.0056%, increasing to 0.013%at -10 dB level. Measurements for CCIF (twin tone) IMwere 0.0010% and 0.0025% at 0 and -10 dB record levels,respectively. De -emphasis was accurate to within 0.1 dB atthe three test frequencies of 1, 5, and 10 kHz included in thetest disc.

Use and Listening TestsHappily, my collection of CD records is growing by leaps

and bounds. I now own more than a dozen of these amazinglittle discs, and I am pleased to report they are getting betterand better, musically speaking. Someone out there must belistening to those of us who have suggested that new mixingtechniques and approaches (or are they really "old tech-niques" after all?) are going to be needed if the CompactDisc's potential is to be realized. Two recent acquisitionsare from RealTime Records (Miller & Kreisel Sound Corp.).One is from their "Digital Masterpiece Series," Zoltan Rozs-nyai conducting The Philharmonica Hungarica in selectionsby Brahms, Berloz, Chabrier, Rossini, Bizet, Dvorak, Dukasand Liszt. The other, Real Hot Jazz, features jazz -band mu-sic by the likes of Don Menza, Jack Sheldon, John Dentzand Freddie Hubbard and their assorted musical aggrega-tions. If you want to know how totally thrilling digital discreproduction can be, drop either of these (depending uponyour musical taste) into any CD player and you'll be animmediate convert.

Could I hear a "difference" between the sound producedby the Magnavox unit and my own reference CD player?Frankly, no! The new discs sounded absolutely superb onboth. This is not to say that you won't be able to detect somesubtle differences if you listen long enough. All I'm saying isthe CD experience is so overwhelming compared to anyanalog listening I've done over the years, that straining topick out hitherto undetectable flaws seems a pointless exer-cise to me. I prefer to enjoy the music-as I've neverenjoyed it before-and to thank the people at Philips (and,yes, those at Sony, too) for bringing this miracle to us duringour lifetimes.

This much I will say: The earliest CDs in my collection,and those that were produced from less -than -excellent ana-log master tapes, point up their failings on any type of CDplayer, while the most recent Compact Discs sound goodon both the Magnavox and my reference player. In thatconnection, the Philips unit I received for testing was mag-nificently packaged. Included with it was a Philips CompactDisc containing 14 cuts, eight of them pop music, the rest inthe classical domain. This disc, too, offered a superb'exam-ple of how CDs should be engineered. Magnavox would bewise to offer their version of the player packaged just as itwas by Philips, including this magnificent sampler. As forthe Magnavox CD player, its small size, excellent design interms of ergonomic factors and its relatively low price makeit a sure winner. Leonard Feldman

88 AUDIO/JUNE 1983

MI - a A 11111111

* in-no -val-tion(anew idea, method or device)

At NC, innovation is a philosophythat has always been translated intoimproved performance. Some of themost important improvements-innova-tions you may take for granted-wereintroduced by NC. The list includes theworld's first metal -capable cassette deck,quartz -servo controlled turntables, andfine -ceramic speaker diaphragms.

More recently, we've refined theSuper -A amp circuitry we originated; itreduces six different kinds of distortiondown to imperceptible.

You're also invited to consider theJewel -Lock head assembly, as found inour auto -reverse cassette decks. It setsthe standard for the next generation ofaudio, because it maintains peak perfor-mance in both directions of tape travel,while accomplishing reverse actionsilently and in no more than .4 seconds.

Now imagine a speaker system with afrequency response range from 35 Hz to100,000 Hz. With a ribbon tweeter ele-ment weighing just 22 milligrams. Theonly word for its output: pure. The only

&NG,VC COMPANY OF AMERICA

High Fidelity Division41 Slater Drive, Elmwood Park, N.J. 07407JVC CANADA INC., Scarborough. ONT.

41.

11 % k6 6 6

If .14 46s

name on its enclosure: NC.The list goes on. There's the NC

turntable with a computer controlledlinear tracking tonearm, and a double -servo quartz -control system that's a workof science and a work of art.

So is the NC computer -controlledsynthesizer tuner with four tuning modesand a highly obedient mind of its own.

But perhaps the best suggestion of allis to check it all out. Drop in at a NClistening room.

And listen to the sound of innovation.

Enter No. 11 on Reader Service Card

EQUIPMENT PROFILE

SOUNDCRAFTSMENAE2000 ANALYZER -EQUALIZER

Manufacturer's SpecificationsEqualizer SectionHarmonic Distortion: 0.01%.IM Distortion: 0.01%.S/N Ratio: 114 dB at maximum out-

put.Filter -Band Control Range: ± 15

dB.Unity -Gain Control Range: 18 dB.Filter Type: Passive wirewound coil

inductors.

Analyzer SectionDifferential/Comparator B' Accu-

racy: 0.1 dB.Input Impedance: High level, 47 kil-

ohms; mike, 2 kilohms.Maximum Gain: High level, 30 dB;

mike. 80 dB.Frequency Response: 20 Hz to 20

kHz, ±0.1 dB.

Filter Centers: 30 Hz, 60 Hz, 120Hz, 240 Hz, 480 Hz, 960 Hz, 1.92kHz, 3.84 kHz, 7.68 kHz, and 15.36kHz.

General SpecificationsDimensions: 19 in. (490 mm) W x

51/4 in. (135 mm) H x 111/4 in. (290mm) D.

Weight: 28 lbs. (12.7 kg).Price: $699.00.Company Address: 2200 South Rit-

chey, Santa Ana, Cal. 92705.For literature, circle No. 93

MTV 6.1111(.1.0l I

CHANNEL A

I A S 6 7 O f

MO II. AA lW II.MP, 64 Avn a.

CH.M. Ha

At 01 . S MI VW 10

*E2000 REA, TIME SCAN-ALY2EIVE04AL/2111

411,0100.1:/fitlf

.3411.111t

MM. Iton

The Soundcraftsmen AE2000 combines a real-time ana-lyzer, a graphic equalizer, a pink -noise source, and Sound-

craftsmen's excellent level comparator scheme to makewhat they call a Real -Time Scan-Alyzer/Equalizer. The RTAdisplay dominates the center of the front panel, with acolumn of 10 LEDs for each of the 10 filter bands, which areoctave -spaced from 30 Hz to 15.36 kHz. The vertical col-

umns have 2 dB steps, from 0 to 18 dB. There is a horizontalwhite line between "8" and "10," which makes for a goodlevel reference; it is aligned with the center position of thefilter sliders.

Each of the filter controls has a range of ± 15 dB. Theassociated unity -gain sliders, one for each stereo channel,have a range o1 18 dB for adjusting the equalized -signal

90 AUDIO/JUNE 1983

Fig. 1-Swept-frequencyresponses of each filtersection at maximum

boost and maximum cut,and with all sections atmaximum cut.

Fig. 2-Swept-frequencyresponses with 60-, 1,920 -and 3,840 -Hz filters setsuccessively for 3 dB

steps from -15 to + 15 dB.Note that + 12 and+15 dB curves overlapcompletely.

gain to 0 dB, matching the EQ-out gain. Two LED balancelights adjacent to each unity -gain slider show how to adjustthat slider to restore unity gain. The indicators providedefinite and accurate (to 0.1 dB) feedback to the user whenany gain adjustments are needed. The scheme is an excel-lent one, and Soundcraftsmen has interfaced it with the RTAfor fast and accurate sound -system equalization.

The Scan-Alyzer is a special function of the RTA, whichnormally shows the levels in all 10 bands simultaneously,although rapid scanning is actually taking place. A switchfrom "Display" to "Analyze" changes the RTA to one thatsteps from filter to filter, either with a push of "Scan Manual"or with an adjustable stepping rate in "Scan Auto." Theoutput of the internal pink -noise generator is bandpass-filtered to the same octave as the RTA, and the filtering isstepped in synchronization in either scan mode. The sound -system output is fed into the "Scan-Alyzer Input" phonejacks, "Mic" or "Hi Level." The "Pink Noise Level" pot isused to set a good level for equalizing-well above back-ground noise, without being excessively loud. The "Scan-Alyzer Input Calibration" pot is adjusted for balance, usingthe comparator LEDs, in "Display" mode. Then, a switch to"Analyze," and the balance in each octave band is exam-ined and adjusted in turn, while stepping manually or with"Scan Auto." Each stereo channel is selected in turn for thisequalization. The equalizing is much more accurate thanwith other units because the adjustments are made with theaid of the high -accuracy comparator, not by trying to readthe imprecise indications of an RTA display.

There are also rotary controls for "Auto -Scan Rate" (fromabout 1 second for all 10 bands to about 10 seconds perband) and for "Display Position," which is operational in allRTA modes.

To the right of these knobs are pushbuttons marked"Decay Slow/Norm" (for the display) and "Mic/Line" plusjacks for the "Mic" and "Hi Level" Scan-Alyzer inputs and"In" and "Out" jacks for Scan-Alyzing with an externalequalizer. The "Mic/Line" description does not tell the whole

story: For Scan-Alyzer use, the switch is left in "Mic" posi-tion, and the signal to be analyzed is fed into the "Mic" or"Hi Level" phone jack. For RTA use, the switch selectsbetween the front -panel "Mic" input and the rear -panel lineoutputs. With the "Pink Noise/Source" switch in "Source"position, the "Line" setting will display the equalized signal;one must press "EQ Defeat" to see the unequalized signalthat is coming in via the rear line inputs.

That "EQ Defeat" switch is grouped with the "EQ TapeRecord" and "Tape Mon" buttons, at the far bottom left.These three are not pushed in during normal equalizeroperation. The power switch is to their left.

Eight phone jacks on the rear panel provide in/out con-nections for a preamp/receiver (or perhaps a mixing board)and a tape recorder. Adaptors to phono jacks are provided.

Removal of the heavy steel top and side cover revealedthree large p.c. boards with quality components and verygood soldering. Intercard connections were made with wire -wrap. None of the parts were identified. All of the DIP ICswere mounted in sockets, and the single fuse was in a clip.Cabling used twisted wires without an outside shield. Theinductors used in the filters appeared to be well made. Thebox chassis was fairly heavy and rigid, but some sections ofthe cards were a bit springy.

Equalizer Section MeasurementsWith all of the spiders set in their center detents, the

frequency responses were flat within ±0.5 dB from 20 Hz to20 kHz with EQ, and within ±0.2 dB with EQ defeated.During this test, the balance lights indicated the discrepan-cies with EQ at the ends of the band, and a touch of thesliders to match the two LEDs reduced the deviation withEQ to less than 0.1 dB. The 3 dB down points were at 0.8 Hzand 112 kHz with EQ, and at 0.8 Hz and 290 kHz without.

Figure 1 shows the swept -frequency response plots ofeach filter section at maximum boost and cut and with allfilter sections at maximum cut. (The response with all sec-tions at maximum boost was pretty much a mirror image of

AUDIO/JUNE 1983 91

"Equalizing with theAE2000 is more accuratethan with other units,because adjustments aremade with the high -accuracy comparator."

I

20 40 60 160 35 630 1251 2.5k 5k 10k 20h

Fig. 3-Systemequalization test.Simulated room responsecurve (top), responseafter analysis andequalization usingScan-Alyzer (middle; topand middle curves shown

with 1/3 -octave resolution),and equalized responsewith octave -bandresolution (bottom).

the maximum -cut plot.) The spacing of the filters was even,and the filter shapes were quite consistent, reflected in theconstant level of the crossovers of the individual filter re-sponses. The measured center frequencies of the filterswere all within 5.3% of the specification, and the averagediscrepancy was an excellent 2.7%. The maximum boostswere 15.6 dB or more, with the exception of the 30 -Hz filterwhich was very close to the 15 dB spec with 14.6 dB ofboost. The maximum cuts were 15.1 dB or more for all filtersin a static test, although the swept response showed lesscut than that with the 30 -Hz filter. As the discrepancy wasconsidered unimportant, it was not investigated further.

Figure 2 shows the swept responses obtained with threefilters set at maximum cut and then shifted in steps of 3 dBfor each successive sweep until reaching maximum boost.As with most graphic equalizers, the steps close to zero(center detent) change signal level throughout the band,and the response deviations do not match the scale values.This is especially true at maximum boost: The + 12 and+ 15 responses were exactly the same, as shown.

With the 480 -Hz filter, a one -octave bandwidth wasreached with a boost of 11.2 dB, higher than most suchequalizers. This signifies that the filters are on the broadside, but also that one can therefore add more boost thanusual before the onset of ringing. The practical limit tominimize the possibility of ringing was a boost of 9.1 dB, atwhich point Q was 1.0, and the bandwidth was 1.4 octaves.

The unity -gain slider had a range from -14 to +6 dB,with 0 dB gain at the center detent. With all sliders in detent,the change in gain with EQ out was less than 0.1 dB. Levelmatching with the Soundcraftsmen comparator was within±0.1 dB across the entire band at any level above 60 mV.The maximum input/output levels were 9.2 V from 20 Hz to20 kHz, open -circuit, dropping to 8.5 V at the frequencyextremes with a 10-kilohm load. The input impedance was27 kilohms over most of the band, dropping to a somewhatlow 12.8 kilohms at 20 kHz. (This would not be a problem for

most of the latest equipment, but units with source imped-ances of 1.7 kilohms or higher would have a drop of 1 dB ormore at 20 kHz.) The AE2000 had a desirably low outputimpedance of 550 ohms or less.

The harmonic distortion at 2 V was a very low 0.0025%over much of the band, rising slightly at the low -frequencyend and rising to 0.032% at 20 kHz. The distortion figures at20 kHz for the left channel were somewhat higher, and itwas noted that there was some positive -going slew -ratelimiting at 2 V and 24.1 kHz. The right channel showed slightindications of such limiting at 2 V, but not until 90 kHz.Replacing one of the DIP ICs would probably get the leftchannel to match the right. With all sliders in detent, thesignal-to-noise ratio was 94.3 dBA relative to 1 V, 88.3 dBArelative to the EIA standard reference of 0.5 V. The ratio was113.6 dBA relative to the maximum output of 9.2 V, which iscertainly very close to the specification of 114 dBA, butmaximum output is an unrealistic reference. With variouscombinations of slider positions, it appeared that figures ofabout 5 dB less would be more likely (for all references) innormal use.

Analyzer Section MeasurementsThe center frequencies of all of the RTA filters were within

5% of specification, with the exception that those for 30 and120 Hz were about 7% high, still quite good. The peakresponses of the filters were very close, with a total spreadof 1.0 dB. At the center of the immediately adjacent bands,the filter responses were down about 7.5 dB. They weredown a little over 14 dB in the center of the second bandsover, at which point the final 6 dB/octave slopes were wellestablished. These are expected results from fairly high -Q,single -tuned circuits. Although it would be desirable to havemore rejection of adjacent -band energy, the design is quiteadequate for the intended purpose. The 2 dB steps of thevertical columns were accurate, with a total error spread of0.6 dB over the range of 18 dB. For a 10 dB change, thedisplay required about 30 mS to reach full indication in"Normal." In "Slow" about 40 mS was required at the lowestfrequencies, but only 15 mS or so at higher frequencies. Thebig difference was in decay time, with 0.55 S for "Normal"and 8 S for "Slow."

The high-level input sensitivity for an RTA display andfunctioning of the Scan-Alyzer was 16 mV to 1.6 V, depend-ing upon the pot settings. The mike input sensitivity showedthe same 40 dB range, but from 50 µV to 5 mV. Operationwas generally more satisfactory with levels three to fivetimes higher than the minimum figures given. The inputimpedances were 2.2 kilohms across the band for mike and27 kilohms for high level, with an unimportant reduction to22 kilohms at 15.36 kHz. The pink -noise output could be setanywhere from 30 p.,V to 380 mV, with a minimum of 20 mVrequired for a good RTA display. The spectrum was fairlyflat for most of the pot rotation, but there were some varia-tions. These deviations were judged quite unimportant, be-cause the Scan-Alyzer matches levels band by band, devi-ated or not. In other words, the comparator measures onlyrelative level differences between the pink noise and thesystem output in each band. If the pink -noise signal were 2dB low in the 7.68 -kHz band, for instance, it would lower the

92 AUDIO/JUNE 1983

"With the sliders centered,response was flat within± 0.2 dB; but using theLEDs, a touch of thesliders reduced deviation toless than 0.1 dB."

input 2 dB on both sides of the comparator, cancelling outthat difference; only the variations due to the system's re-sponse would register on the Scan-Alyzer LEDs.

Band -limiting of the pink -noise output is an essential ele-ment in the Scan-Alyzer method of equalizing band byband. The pink -noise outputs in the "Analyze" mode arepeaked at the center frequency of the band under test,rolling off above and below that point.

Use and Listening TestsThe AE2000 was supplied with the Soundcraftsmen test

record, which includes useful bands of noise, and "Compu-tone" charts which can be cut to match equalizer settings,serving as a form of memory. The owner's manual has somegood material, including cautions on excessive boost at 30Hz, but it is lacking in a number of areas where the nonpro-fessional needs guidance. I would also recommend a lowerlevel than -3 for recording pink noise on a tape deck: Manycassette decks will have high -frequency roll -off at that level.

Soundcraftsmen does not supply a test microphone withthe AE2000, but they have a valid point that inexpensivemicrophones normally included with RTAs are not thatgood. The manual does have good instructions on how touse a separate microphone to get good results with refer-ence to its response curve. There is no discussion of direc-tivity, however, so let me remind the reader that most micro-phones will have a response peak at the high end when theyare pointed directly at a loudspeaker in a typical listeningroom. A mike's normal response would be approachedmore closely with its axis perhaps as much as 70° or moreaway from the speaker.

As expected, some familiarization time was required toutilize the Scan-Alyzer efficiently. Sometimes I used "ScanAuto," setting the stepping rate to match my adjustmentspeed. Other times it seemed easier to step manually, forthen I was absolutely certain which slider to adjust. It wasalways easy to match the brightness of the balance LEDs,and the required slider positions were very definite.

Figure 3 shows the results of running one test with asimulated system response (top). There is a very large peakaround 100 Hz, a deep crossover notch at 3 kHz, and poortweeter response. The middle trace shows the responseafter using the Scan-Alyzer to set up the AE2000's octave -spaced sliders. No reference was made to the third -octavedisplay when this was being done, and I was quite sur-prised myself at how flat it was even with the third -octaveresolution. The bottom trace is the resulting response on anoctave -band basis.

In "Norm" the display was fairly good for music monitor-ing, while "Slow" was better for looking at the results ofScan-Alyzer equalizing. The LEDs were bright enough foreasy use under most any lighting situation. The unit hadvery low noise and distortion, though some attention was inorder for the left channel.

The combination of an equalizer and a matching RTA is agood one, in general, but Soundcraftsmen has done some-thing quite synergistic with the use of their excellent com-parator scheme to ensure speedy and accurate equalizing.The price is very reasonable for what the AE2000 can do.

Howard A. Roberson

AUDIO/JUNE 1983 93

They possess that effortless sound qualitywhich at first was almost impossible to be-lieve ... The design as a whole is a successbecause coloration is remarkably low. Justlisten to them and you will forget all aboutsize and costs.

Practical Hi-Fi, Nov. 1980

In short I find the speaker very musical. It isexciting to listen to ... It as exciting be-cause it relates aspects of rhythm and tempofor instance that other more expensive de-signs destroy ... And it is impressivelypowerful.

Popular Hi-Fi, Jan. 1983

The turntable proved to bequite a revelation with bass be-coming a more coherent musi-cal instrument, rather than aloose valuation under the restof the music. All instruments,in fact, become more separa-ted Mating a stable position be-tween and around thespeakers. The Heybrook TT -2turntable must be highly re-commended for the price.

What Hi-Fi, Jan. 1982

By any standards these new Hl3-1's are mar-velous, and their smooth, seamless responseand open tonal balance w II win manyfriends ... If you are in the market forspeakers up to $339 a pair, do hear thesenew Heybrooks, I am sure you will be asimpressed as I am.

Hi-Fi Answers, April, 1983

(Our newest product) HB1

Audition the entire Heybrook line at these select dealers:Audio BreakthroughsManhassett, NY1516/ E27-7333Audio ConnectionVerona. NJ(2011 239-1799A.C.S. LimitedBerkelEy, CA(415) E41-4192

Audic 2000 Electronics Music OneFort Lauderdale, F L Greenville, MS(305) 962-5300Community AudioPhilacelphia, PA(215) 843-9918Hi-Fi GalleryIndianapolis, IN(317) 253-5141

(601) 335-0380Stereo ShopMartinez, GA(4041 863-9143

See us at the Chicago Consumer Electronics ShowCon -ad Hilton Hotel Suites 764 & 766

imported and distribwed by

D'Ascanio Audio11450 Overseas Highway

Marathon, FL 33050Tel.: 305-743-7130

Enter No. 34 on Reader Service Card

E

Cre

O1

Vaga,

Cgo

to

VC4a,zso

41

Cto-C

47

4-

0

Use Your ConvenientMasterCard VisaAmerican ExpressDiners Club CardCOD orders accepted

Money orders acceptedAllow 4 weeks clearance on

any personal check

SONY Walkman 4Cassette

4ite" Stereo

'54.95Complete Set

Sony alkman 5 $84.95 Sony Walkman 7 $129.95 Sony Professional WD6 . $229.9

LABELLECamera 13 Stereo

OF MAINE155 Main Street, Biddeford, Maine 04005

Prices and products in this advertisement supercede all previous ads.

SONY FM StereoCassette

FM -1

$89.95Complete Set

Sony FM -2 Sony WA -33 Sony WA -55

AM/FM STEREO RECEIVERSPIONEERSX5 $149.95SX202 . $119.95SX303 $159.95SX6 $199.95SX7 $329.95SX8 $489.95

SHERWOOD

9200 $169.959300 $199.959400 $249.959600 Call

AKAIAA -R22 . $169.95AA -R42 . $289.95AA -R32 $229.95

hnicsSA110 .... $109.95SA210 .... 6139.955A310.... $179.95SA410 .... $199.95SA610 CallSA810 Call

A828 $519.95

J.V.C.CALLFOR

LATESTMODELS

ANDBEST

PRICES!

ea wall oria at

SR1000 $149.95S R2000 $179.95SR520 $219.95SR220 $119.95SR620 $279.95SR-7100DC 9349.95SR-8100DC $409.95

BLANK TAPES

1129.95$119.95$129.95

SONYSTR-UXI CALLSTR-UX22 FORSTR-U X33STR-UX4 BESTSTR-UX5 PRICES

Sansui_Z-3000Z-5000 CALLZ-7000 FORZ-9000 BESTAUD-9 PRICESAUD-7

NIKKONR -320 CALLNR -520 FORNR -700 LATESTNR -800 MODELNR -1000 ANDALPHA220 BESTALPHA440 PRICES

TURNTABLES

TOSHIBA FM StereoCassette

KTS3

SI

$59.95lComplete Se

Toshiba KTR-2 $89.95 Toshiba KT -VS' $89.9L

SPEAKERS

FOR MAIL ORDERSCALL TOLL FREE:

1-800-341-0783In Maina, Alaska and

Hawaii, Call 1-207-283-1401Call For Shipping

And Handling On Mail Orders

SANYO AM/FMStereo Cassette

MG -31

$49.95 Sanyo MG -7 $24.95 Sanyo MG -I00 199.95 Sanyo MG -1 $59.95

Call ForLowest PricesOn Speakers

PIONEERARIES 50

3 way100 Watts Total

9 1 9"pair

48'S3 way

'279"pair

ii00-CERWIN-VEGAu-123 3 way120 Watts Total

Ai

'258"pair

TURNTABLES

AIWA AM/FM StereoCassette

I' W/RecordingAuto Reverse

H S -J 2

p$129.95Complete Set

AIWA HS P02 1109.95

CASSETTE DECKSPIONEER

CT -4 $109.95CT -5 $139.95CT -6R $179.95CT -7R $249.95CT -8R $369.95CT -9R $430.95

SansulD-55MS

77FS CALLD-7D -99D5 FORDD-357070 PRICESD-770DW-9

TC-F X33 CALLC -F X44C-FX66 FORC-FX77 PRICES

TC-F X 500ORC-FX1010C -K 555

TC-K 777

J.V.C.CALLFOR

LATESTMODELS

ANDBEST

PRICES!

TEACV-33 $109.95 V -2R X $309.9V -44C _5129.95 V-1RX .5375.9V -66C 5147.95 V -3R X $419.9V-80 $237.95 V -90R $319.95V -4R X 5252.95 V-95RXS389 9

TURNTABLES

1.11-18.173RSM205RSM224RSM226RSM255XR SM228XRSM25812R SM235XRSM275X

$99.959119 95$139.95$239.9S

Cali$259.95

Call9369 95

worm ea ram Ira a zSD225 $119.95SD320 $169.95SD420 $219.95SD3510 $189.95SD5010 $229.95SD9000G . $369.95

AKAICS -F12 $109.95 GX-F71 5297.95CS -F14 .5129.95 GX-F91 9487.95CS -F21 .9165.95 CS-F39R $259.95CS -F31 $209.95 GX-F44R 9327 95GX-F51 1245.95 GX-F66RC S384 95

TURNTABLESTDK SA -C90 92.45 eaMAXELLUDXLIIC90 $2.49 eaTDK-T120 $9.95 eaMAXELL T120 $9.95 eaSONY L750 $8.95 eaSONY L830 $11.95 eaSONY L500 57.95 ea

Wcarry Maxell, Tok,Sony. Scotch. Fee.Memorex, Bast, Ampex,J.., PanasonicMinimum (prow 10 TOP.

ONPS -LX IPS -LX 3 CALLPS -LX 4 FORPS -LX 5 LOWESTPS-FL1

PRICESPS -FL 3PS -FL 5

JVCCALLFOR

LATESTMODELS

ANDBEST

PRICES!

AKAIAP -B110 $74.75AP -D210 $94.70AP -Q310 $109.75AP -Q41..... $158.90AP -L45 ..... $199.95AP -L95 $389.95

PIONEERPL -2 $64.90PL -4 $88.90PL -5 $94.90PL -7 $109.90PLL-800 $259.90PLL-44F $169.90PLL-88F- $259.90

TechnicsSLB10 $62.90 SL -5 $114.90SLB20 $74.90 SL -6 $169.90SLB30 $88.90 SL -7 $249.90

S

SLD30 $99.95 SLDL-5 $129.90$111.90 SL -10 $399.90

SLQ30 $129.95 SL -15 $549.90SL-QL1 $248.90

SL-1200MK I I $289.90

AM/FM CASSETTE CAR STEREOS IN DASHPIONEER

KP1500 $69.95KP5500 $119.95KP7500 $169.95UKP5200 $139.95UKP5600 $159.95KE-5100 $179.95KE-6100 $219.95UKE-3100 $179.95

KE-7100 $249.95

Clarion5100R $119.955150R $129.955300R $139.955550R $139.955700R $179.957500R $189.955500R $139.955900R $209.959300T 3.95

-N

MittRE -5 r 6309.95RE -520 $259.95RE -518 $239.95RE -512 $219.95R E -508 $179.95R210 $119.95R200 $89.95JR-115 $139.95JR-110 6119.95

nraarlkas &

CAR -312 $124.95CAR -320 ... $139.95CAR -322 ... $179.95CAR -340 ... $199.95CAR -302 $179.95CAR -310 $149.95

35mm .CAMERAS

CanonAE 1 with 50mm

1.8 FD Lens. $179.95

AE 1 PROGRAM w/50mm1.8 FD Lens .. $219.95

P.1 w/50mm 1.8 FD Lens $259.95SURE -SHOT 35M w'Case 9109.9CASES FOR CANON 515 95

XR-15XR-25X R-35XR-50XR-55XR-70XR-75XR-77

_AM.

SANYO

FTC -1 49.95F TC -28 69.95FTC -8 109.95FTC -120 199.95F TX -140 229.95F TX -160 249.95FTC -180 289.95

Famous aker00mm Macro Zoom

XGM wi 50mm f2X700 w/50mm 92XG-1 w/SOmm f2CASES FOR

$169.955219.951149.95115 95

AM/FM CASSETTE CAR STEREOS IN DASH

CONCORDZiZ711

HPL-101 ... $149.95HPL-112... $179.90HPL-118 ... $249.90HPL-118F $279.95HPL-119 $319.50HPL-121 $249.95HPL-122 6299.95

BLAUPUNKT61.CR-2002 169.95CR-2001 199.95CR-5000 289.95CR-2010 249.95CR-30011-4 339.95CR-3003 '.264.95Berlin ... 919.95BEA 55 79 95BEA 150 .. 119 95

$69.95

PENTAX

K1000 w/50mm f2 1119.95ME SUPER w/SOmm f2 $159.95ME F w/50mm 92CASES FOR PENTAX 515.95

mrrsuBistrWCAR AUDIO

rCZ747 $259.95R X735 5209:90CV725 $129.95RX707 $154.95RX726 $129.95RX723 $99.95RX909 $209.90RX791 $219.95

cra/A I G.Aimm.

T -53I 129 90R-230 239 95T-624 79 93T-691 149 95T-560 139.95T-140 $9 95T-690 119 95T-530 129 951 -400 69 9$W-460 249 95

35mm CAMERAS

NIKON**FE w/50mm 1.8E 5239.95FM2 w/50mm 1.8E $239.95FG w/50mm 1.11E $234.95F3 Body Only 5369.95CASES FOR NIKON $15 95

PANASONIC

CQS818 $234.95CQS958 $349.95CQS768 $219.95CQS747 $189.95CQS788 $219.95CQS903 $289.95CYSG100 $169.95

ADC EQUALIZERSADC SSIO $149.95ADC SS20 $209.95ADC SS30 $269.95ADC SS5 669.95ADC 541 $119.95

toAV

c

61.

ep

0

O0.

to

O

SEND 52 FOR YOURCOPY OF LABELLE'SCOMPLETE CATALOGUE!

Name

Address

City

Slate Zip

LaBELLE BID155OMEFORD MEAIN STREET

04005

OP

AIDCS01

0.

to

717.

0C

OP30-or

C

OP

C.

dir

CVOt

0

A day return policy: All returns must be phoned In for prior authorization. All products must be returned in original factory packag-ing, clean and unscratched. Do not write, tape, or deface manufacturer's original cartons. Please Include blank warranty cards.

CLASSIFIED ADVERTISING

CLASSIFIEDADVERTISING

RATESBUSINESS ADS -$1.00 per word, minimum charge$7.00 per line for spaced ads specifying five or lesswords per line. First line set in bold face type at noextra charge. Additional words set in bold face type$1.10 extra per word. One point ruled box, extracharge $9.00. ORDERS WILL NOT BE PROCESSEDWITHOUT ACCOMPANYING CHECK OR MONEYORDER FOR FULL AMOUNT

NON -BUSINESS ADS -70c per word, minimumcharge $5.00 per line for spaced ads specifying five orless words per line. First line set in bold face type at noextra charge. Additional words set in bold face type$1.10 extra per word. One point ruled box, extracharge $9.00. ORDERS WILL NOT BE PROCESSEDWITHOUT ACCOMPANYING CHECK OR MONEYORDER FOR FULL AMOUNT.

FREQUENCY DISCOUNTS -3 times less 5%, 6 timesless 15%, 12 times less 20%. These discounts apply toline ads only. Ads submitted for a three time frequencyare unchangeable. Frequency discounts not fulfilledwill be short rated accordingly.

Classified ads are payable in advance BY CHECK ORMONEY ORDER ONLY. (Sorry, we cannot acceptcredit cards or bill for line adv.). All orders should bemailed to:

AUDIO MAGAZINEP.O. Box 1790V

Greenwich. CT 06836

DEADLINE -1st of month two months preceding thecover date. If the first of the month falls on a weekendor holiday, the closing date is the last business daypreceding the weekend or holiday.

ADS RECEIVED AFTER THE CLOSING DATE WILLBE HELD FOR THE NEXT ISSUE UNLESS OTHER-WISE STATED.

BLIND ADS -Audio box numbers may be used at$5.00 extra for handling and postage.

GENERAL INFORMATION -Ad copy must be type-written or printed legibly. The publisher, in her solediscretion, reserves the right to reject any ad copy shedeems inappropriate. ALL ADVERTISERS MUSTSUPPLY: Complete name, Company name, FullStreet address (P.O. Box numbers are insufficient)and telephone number. Classified LINE ADS are notacknowledged and do not carry Reader Service CardNumbers. AGENCY DISCOUNTS do not apply to lineadvertising. FREQUENCY DISCOUNTS not fulfilledwill be short rated accordingly. Only those advertiserswho have prepaid for their entire contract time will beRATE PROTECTED for the duration of that contract,in the event of a rate increase. For any additionalinformation contact Laura J. Lo Vecchio, ClassifiedAdv. Mgr., 1515 Broadway, New York, NY 10036 ...Direct Dial (212) 719-6338.

CLASSIFIED DISPLAY RATES1 col x 1" $195.1 col x $350.1 col x 3' $450.2 col x 1" $390.2 col x $700.

For larger display ads and frequency discounts call(212) 719-6338.

DISPLAY ADVERTISERS MUST SUPPLY COM-PLETE FILM NEGATIVE READY FOR PRINTING ORVELOX. PRODUCTION CHARGES WILL BE AS-SESSED ON ANY AD REQUIRING ADDITIONALPREPARATION.

DISPLAY ADVERTISERS must make a space reser-vation on or before the closing date. Ad material (filmor velox) may follow by the 10th.

FOR SALE

HOW TO ANSWER BOX NUMBER ADSWhen replying to an Audio Box Number Ad, pleaseuse this address Box No. c/o Audio, 1515Broadway, New York, N.Y. 10036

1-313-553-9246. AB SONICS FOR KEF, CJ Walker, Linn,Pink Triangle, Michell Gyrodec, Rogers, and other Britishcomponents! Write or call for free catalog and info. ABSonics, 28140 Kendallwood Dr., Farmington Hills, Mich48018. We now carry the full line of Unity Audio speakers.

1 -602 -245 -0192 -ARIZONA AUDIOPHILES -Demo& used equipment clearance -Ross 1A speakers, Re -vox Amplifier, Tandberg preamp, Luxman tuner, B &0, Rega turntables ESOTERIC AUDIO

250 WATT DALE RESISTORS 4 -OHM Non -Ind goldfinned $20., 212-996-2252

1-313-471-3076 OR 1-313-553-0508-B&K IMPORTS -Favorable terms for ALL audiophiles! Broad range of prod-ucts imported and domestic. Free shipping -Visa, Master -charge, Checks, C.O.D.-Ask for our catalog! 24160 TwinValley Ct., Farmington, MI 48024. British Audio mags oldand new

AAAAAN ORACLE DELPHI $760, 616-874-8369 eve-nings

FOR SALE

1-800-245-6000TAPE WORLD

JVC: T.120 8.09TDK: MA -90 4.49TDK: SAX -90 3.19TDK: ADX-90 2.99TDK: SA -90 2.25TDK: SA -60 1.89TDK: AD -90 1.89TDK: /10-60 1.49TDK: ID -90 1.29TDK: 0-60 1.15MAXELL, TDK: T-120, L-750 Hi -Grade 11.49MAXELL, TDK: T-120, L-750 8.49MAXEEL: XLI or IIS-90 3.59MAXELL: UDXL I or IIC-90 2.59MAXELL: UDXL I or IIC-60 2.29MAXELL: UD-90 2.19MAXELL: XL I 35-90B 6.49MAXELL: UD35-90 5.39SONY: UCXS-90 2.99TDK: HD -01 (Head Demag.) 13.99WE WILL HONOR ANY COMPETITORS PRICE OFTHE TOTAL ORDER. $3.75 Shipping any size order inUS. VISA, MC no extra charge. COD add $1.50. Mini-mum COD order $40.00. PA ad Sales Tax. Allow 2weeks for delivery.

323 Brown Ave., Box 361, Butler, PA 16001412-283-8621

HERE'S WHAT HAPPENS WHENYOU GIVE THE WORLD'S FINESTAUDIO

ENGINEERS CARPE BLANCHEThe team of engineers that developed Sony Esprit was not asked to

work within the narrow confines of a budget_Nor were they asked to adhere to tie conpromising deadlines of some

production timetable. Or to the arbitrary figures of a spec sheet.They were asked, quite simply, to cevelop components that would

approach, to the closest possible degree, percect sound.There is no gimmickry in Esprit components; only those technological

improvements that contribute to sound quali-y were considered meaningful.There are no question marks either. For _he Esprit engineers fully re-

search their equipment before production. Nct afterward. SONYFor more information write Sony Esprit, 2300

Peachford Rd., NE, Suite 1150, Atlanta, Georgia 30338. ESPRIT.roe

0

powo

1.11 m )

3213 17th StreetMetairie, LA 70002(504)834-7772D S AUDIO545 Penn AvenueWest Reading, PA 19611(215)376-4917

PARIS AUDIO12401 Wilshire Blvd.Los Angeles, CA 90025(213)820-2578PARK AVENUE AUDIO425 Park Avenue SouthNew York, NY 10016(212)685-8101

PROFESS I'4\L PRODUCTSAUDIO CENTER4964 Fairmont AvenueBethesda, MD 20014(301)657-2141

RECORDER CENTER2003 North HendersonDallas, TX 75206(214) 826-8700

THREE PHASE AUDIO104 Foreman DriveLafayette, LA 70503(318)981-4951

© 1982 Sony Corp. of America. Sons and Sons Esprit are registered trademarks of the Sons Corp.

AUDIO/JUNE 1983 95

FOR SALE FOR SALE FOR SALE

2 WORLD -CLASS TABLES; 1 COMPANYThe SOTA Sapphire.establishes new standards, both sonicand set-up, for all audiophile turntables. How amazing-one year later, this American firm then, adds a VacuumHold -Down STAR and a vacuum kit for all Sapphires. Howrefreshing that an American company now makes the 2best tables in the world-bar none! NEW in WashingtonD.C. area, EXCALIBUR, 703-765-1823.

AAA -TOP PRICES PAID for Audio Research, Marantz,McIntosh, and Western Electric Equipment, AudioWork-Shop (206)323-4987

AAAA-CANADIAN AUDIOPHILES Cartridges, tonearms, transformers, headphones,loudspeakers, interconnects, accessories and muchmore. All available at lowest possible prices. Write forfree brochure and price list. ESOTERIC AUDIO 107- 2929 Nootka St., Vancouver, B.C., CANADA.V5M-4K4. Free shipping throughout Canada.

ABARGAIN: Perreaux 2150B hybrid Class A power ampli-fier. 200/200. Mint. $1095 or B.O. (617) 491-2216 eve-nings.

VANDERSTEEN AUDIO DIMENSIONAL PURITY

Vandersteen Audio was founded in 1977llownors with the commitment to offer always thefinest in music reproduction for the dollar.Toward this goal there will always be ahigh degree of pride, love, and personalsatisfaction involved in each piece before itleaves our facilities. Your Vandersteen dealershares in this commitment, and has beencarefully selected for his ability to deal withthe complex task of assembling a musicallysatisfying system. Although sometimeshard to find, he is well worth seeking out.

Write or call for a brochure and thename of your nearest dealer.

VANDERSTEEN AUDIO116 WEST FOURTH STREETHANFORD, CALIFORNIA 93230 USA(209) 582-0324

0

670 AIRPORT BLVD.ANN ARBOR, MI. 48104

13131 769-5522

#1 AGAIN!Conrad -Johnson's new preamp, the Premier Three,

redefines the state-of-the-art in preamplifiers. If youwant the best, it's here. $2850. Combine this with thePremier One amplifier at $4350, and you will have thefinest electronics on earth.

DCM Time Windows: a classic that remains in aclass by itself. $747.

In stock: Perreaux's incomparable preamp withenough gain for MC cartridges ($990) and their incred-ible 2150B amplifier (200 wpc, $1450) that will driveAcoustat lovers (and others) into ecstacy.Hailer's new DH -100 preamp.

No one appreciates the value of the dollar more thanwe do. That's why we are dedicated to serving youwith the finest advisory staff in the business. Call usanytime and hear the difference.We proudly represent:

PS AUDIO HAFLER KRELLNAD PERREAUX DENONAMBER GNP BOSTON ACOUSTICSADS DCM TANDBERG

DENNESSEN SPICA NITTY GRITTYGRACE ROGERS AUDIOSOURCEVPI STAX AUDIOOUESTMARCOF CJ WALKER DYNAVECTOR

Please call or write for information. Friendly, expertconsultation. Fast, free, same -day shipping. MCNISA/AMEX.

REFERENCEAUDIO SYSTEMS

18214 DALTON AVENUEGARDENA, CA 90248

(213) 398-4205

AAA -ASTOUNDING CARTRIDGES: Finest in the World aShamefully Low Prices. Accuphase, Denon, Dynavector,Grace F9E's, F9E Ruby's, Koetsu, etc. NEW, 100% QualityControl, Warranties, COD Available. No Price List. "WeWill Not Be Undersold". AudioWorkShop (206) 323-498724hrs.

AAA AUDIO DISCOUNTS OFFERS THE FINESTlines of audio components (INCLUDING THE ESO-TERICS) at DISCOUNT PRICES. It you're in the mar-ket for speakers, receivers, cassette decks, to the bestin separate components including amps, pre -amps,turntables, cartridges etc. or a new CAR STEREO ourknowledgeable sales staff will be glad to assist you.For more information Monday thru Saturday PLEASECALL 301-593-8224-301-593-8244 or write to AU-DIO DISCOUNTS, 1026 McCeney Avenue, SilverSpring, MD 20901. We honor VISA -MC and COD foryour convenience.

AAAUDIOPHILE SPEAKER BUILDER? JORDAN MOD-ULES exclusive importer. STRATHEARN midribbon, Poly-propylene Drivers, EMIT Tweeters, Domes, IBM Computer-iied Designs, Capacitors, Low DC Coils, Crossovers.(Dealers inquire on letterhead) CATALOG $2.00 U.S.Soundbox, 841A -A S. American Street, Philadelphia,19147

ABARGAIN: Supex SDX2000 $299., 901E + Super$130., 901E + Super $120.; Grace F9E $115., F9E Ruby$165., Rubystylus $115., F11L $179.; Accuphase AC -2$285.; Technics 205CMKIII $130., Technics Electronic sty-lusgauge $56.; Denon 103D $165.; Dynavector DV -23R$180.; Koetsu Black $475., SA-1100DMKII $485.; LinnIttok $445.; Fidelity Research FR64fx $415.; Signet SK50$230.; Stax headphones; All unused/warranty; Won't beundersold; (212) 784-2939 evenings; (305) 487-1048 eve-nings.

HIGH END PARTSCorning 1/4W, ± 1% Metal Film Resistors, ea. 25¢

(E24 range, 108 values: 10 ohm -1 meg.)

NeglexlMogami signal cable, ft. 60tGold on brass, 8mm RCA plugs, ea. $3.25Mogami Speaker wire, ft. $2.00Wire Termination kits, set of 2, ea. $1.50Telefunken ECC83/12AX7, ea. $8.50GE, 6L6GC, Matched pair $18.50

Al) prices postpaid, Quantity discounts available,Ask for our parts flyer, MC 8 Visa welcome.

OLD COLONY SOUND LABBox 243A Peterborough, NH 03458

96AUDIO/JUNE 1983

FOR SALE

A BETTER WAY TO BUY YOUR AUDIO AND VIDEOCOMPONENTS. Consider the following -DIRECTSOUND MARKETING can provide you with virtually anybrand of audio or video components (including the esoter-ics) at extremely competitive pricing, on an in -stock basis.Moreover, we maintain a complete service facility to handleany service problems. So, if you're looking for a price,selection, fast shipments, in-house service and competentadvice we have it all, and more. Before you buy anythingplease call us at (404) 233-9500 for more information.

Or write to DIRECT SOUND MARKETING, 3095 BollingWay N.E., Atlanta, GA 30305. For your convenience useyour Mastercard, Visa, or Amex for fastest service. Salestax is charged to Georgia residents only.

ABSOLUTE AUDIO: AMBER, ASIATIC, ORACLE, CON-RAD JOHNSON (INCLUDING PREMIERS), DYNAVEC-TOR, MISSION, NAD, OHM, RGR, SNELL, THIEL, VPI,WALKER, ETC. Audio File, 1202 South Congress, Austin,Texas 78704, (512) 443-9295

ABSOLUTELY THE BEST? low direct Tax free price.reviewed November 82 'Gramophone' "indeed the combi-nation of Mayware MKIV tonearm $125 and MC -2V 'Vital'stylus $79 + T-24 transformer reproduced my sequence ofTest records with unusual accuracy and tonal naturalness.World's best loudspeaker manufacturer says" combinationperforms extremely well and cures mistracking which oc-cured with SME." Just released "The Cartridge $159VISA MC accepted info $1 bill. Mayware P.O. Box 58,Edgware, Middx. England.

ACCURATE AFFORDABLE AUDIOPHILE EQUIPMENTat very low prices! Specialists in CARTRIDGE -TONE -ARMS -TURNTABLES. Great selection of cost-effectivecomponents for audiophiles on a budget. Call or write forprices and specials. HCM AUDIO, 1363-G LongfellowAve., Chico, CA 95926 (916) 343-0558

ACCURATE, QUALITY HOME/CAR AUDIO AFFORDA-BLY PRICED!! Denco Audio, P.O. Box 6104-U, El Monte,CA 91734. (213) 961-6158 evenings, weekends. STAMPBRINGS SPECIALS SHEET. MiC, VISA ACCEPTED!

ACOUSTAT IN WISCONSIN!!!AUDIO ELITE, Menasha, WI, 414-725-4431

ACOUSTAT PRODUCTS AVAILABLE ATGENE RUBIN AUDIO (213) 571-1299 (PAC)

ACOUSTAT SPEAKERS -SUPERB!Free Shipping! Fast Service! READ BROS STEREO, 593King Street, Charleston, SC 29403, (803) 723-7276. AlsoSony digital (disc and PCM-F1).

ACOUSTECH III AMPLIFIER, IV pre -amp, both $200. AM-PEX 755 tape deck, $125. All are original mint, completewith factory manuals and schematics. Wayne (312) 739-0061

ACOUSTIC RESEARCH D40, NEW $1,200.00Koss Model 1, Preowned, Exc., Pair $600.00Nakamichi 700 ZXL, Demo $1,600.00

Imperial Sound, 918-622-6111, Visa/MC

CROWN BEST QUALITY AMPLIFIERS, TUNERS, PRE-AMPLIFIERS. PROFESSIONAL CONSULTATION -BESTPRICES. EAST: (904) 262-4000; WEST: (213) 840-0878.

ADCOM SUBWOOFER WITH CROSSOVER $115. Post-paid U.S.A. call for other low prices. Tarzana stereo center,19012 Ventura Bi Tarzana Calif. 91356, (213) 343-6103

KIMBER KABLEHIGH PERFORMANCE

SPEAKER WIRE

Strong in the West. headin' East.

ASK YOUR DEALERManufactured by;

RKB Industrial. Inc.2058 Harrison Blvd.Ogden, Utah 84401(801) 621-5530

FOR SALE

ADVICE TO ANXIOUS TURNTABLE OWNERSBanish audio anxiety by getting a SOTA Sapphire or SOTASTAR Vacuum turntable. Not only will you have "freedomfrom worry" about set-up, isolation, and feedback -restassured there is no better sounding turntable on the mar-ket. In Los Angeles, PAUL SEYDOR AUDIO. (213) 826-5580.

ELECTRO-VOICE INTERFACE AND CD SERIES QUALI-TY SPEAKER SYSTEMS. PROFESSIONAL CONSULTA-TION -BEST PRICES. EAST: (904) 262-4000; WEST:(213) 840-0878.

AFFORDABLE AUDIO -FREE SHIPPINGEsoteric Audio Research, Conrad Johnson, 1-tafler, Audire,Spica, Vandersteen, DCM, Quad 63's $2695., PrecisionFidelity, Walker, MAS Arm, Spendors, Kyocera, MicroSeiki, Linn Products, Dynavector, PS Audio, Janis, etc.Perfectionist Audio, 1610 James, North Mankato, Minneso-ta 56001, Daytime: 507-625-7068, Evenings: 507-345-7186

HAFLER, REVOX, TANBERG, CARVER, DBX AND OTH-ER QUALITY COMPONENTS. PROFESSIONAL CON-SULTATION -BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

HARMAN-KARDON SEPARATES, RECEIVERS, CAS-SETTE DECKS, TURNTABLES, PROFESSIONAL CON-SULTATION -BEST PRICES. EAST: (904) 262-4000;WEST: (213) 8400878.

ALL CLASSIC QUAD ELS OWNERS. Hard to believeQUADS can be improved? The "KOVAL QUAD MOD" hasbeen unbelievably successful in satisfying the most ardentQUAD lover. No risk 30 day trial $140'pr. For info sendSASE to John Koval, Linear Acoustics Labs, 11521 CieloPI., Santa Ana, CA 92705, 714-838-6555

ALL DALESFORD: 10" D 100/250; 51/4" D 30'110; D 10 RDome. $99.50 per side (x 2 for pair). Others charge $124 to$140. VERY limited supply -order now! L.R. Co. (503)779-6643. Evenings, west coast.

ALLISON I SPEAKERS AND ALLISON SUBWOOFER,215-L07-4626 EVES.

ALL NEW ITEMS: AC -2 $300; DL -103D $175; FR-Imk.3F$150; ASAK $300; ROGERS LS3/5A $500; CELESTIONSL -6 $600; QUAD ESL -63 $2500; AMPLIWIRE II $1100;NAKAMICHI DRAGON $1500. ALSO NAKAMICHI SYS-TEM ONE RACK -MOUNTED 620 POWER AMP 630 PRE -AMP TUNER/TIMER AND EXTRA PANELS $1500. NA-KAMICHI 70011 (20 HOURS USE) $800. CALL KEVIN @212-807-8746 OR 212-685-1954 (LEAVE NAME & NUM-BER

ALL LS3/5A OWNERS, A SEALED PAIR of Satterbergwoofers $450. Out of print direct discs, reasonable. 206-747-2894

ALMOST A MIRACLE, "SCORPIO!" A mediummass, high perbrmance tonearm from Helius for only$239.00. For dealer list, contact IAI, 723 Bound BrookRoad, Dunellen. New Jersey 08812 Or call 201-968-8771.

Quali TapesBELOW WHOLESALE SPECIALS

TDK DISCWASHERSAX C-90 3.19 D C-60 1.15 DISC KIT 33.49SA C-90 2.15 LX 35.90 5.25 D-4 SYSTEM 9.49SA C-60 1.85 LX 35-908 5.85 DISCSET 16.49MA C-90 4.35 SA 35-90 9.49 16 OZ. FLUID 9.99AD C-90AD C-60

1.851.45

T-120T -I60

8.4515.49

FLUIADX C-90 3.15 MAR 90 6.39 FR II C-90 2.75

D C-90 1.29 METAL C-90 4,457-120 9.95

ALLYELL T -I20 HG 13.49

UDXL I I C-902.59 XL I 35-908 6.45 SONYUDXL I I C-60 2.37 XL I I 35-90 11.49 UCXS C-90 2.95XL I I SC -90 3.59 1-120 8.45 L-750 8.95UD C-90 2.15 HGX T-120 10.95 L-500 6.95UD 35-90 5.35 MX C:90 4.89 L-750 HG 10.95

TO ORDER BY PHONE CALL 212434-3477 OR ORDER BY MAIL ON ORDERS UP TO 570 ADD 53 SO SHIPPING OVER 570 ADD 5%OF TOTAL ORDER OUTSIDE UPS ZONES DOUBLE ABOVE OUTSIDE USA WRITE FOR SHIPPING CHARGES MASTERCARD!VISA ORDERS ADD 3% EXTRA FOR HANDLING PRICES SUBJECTTO CHANGE

QUALITY TAPES..,.t364 East 7"' S:reet, Dept A6, Brooklyn, NY 11230,

TECHNICALWIZARDRY

Monster Cable andthe Nakamichi Dragon

Nakamichi is a world leader whenit comes to tape deck technology.

Their newest master-piece, the Dragon,

with NAAC (Naka-michi Auto Azimuth

Correction), repre-sents a giant leapforward in cas-sette deck de-sign and sonicaccuracy.Accurate music

reproduction isfirst priority at

/ Nakamichi.Monster

I " Cable is aworld leader when it comes to highperformance cable and connectortechnology.

The Monster's latest creation,Interlink Reference, with "Band-width Balanced" technology, a-chieves a new level of sophistica-tion and performance.

Accuratemusic repro-duction is alsofirst priorityat MonsterCable.

That's whyNakamichirecommendsthe use of highquality inter-connect cables,such as theInterlink series, with a I their tapedecks. Natural sounding midranges,clean highs, and powerful bass.

All from using the correct wire.Whether you are hooking up

a tuner, pre -amp, or tape deck; useInterlink to maximize the perform-ance of your sound system.

mnirrbrikSERIES by -1110111STEILOSILL

Morster Cable Co. 10 Townsend St.San Francisco CA USA 94107

(415)777-1355 telex: 470584 MCSYUI

AUDIO/JUNE 1983

FOR SALE FOR SALE FOR SALE

AMBER Preamp amp $650 Call Terry 402-391-3842

AMERICAN INTERNATIONAL offers a wide variety ofaffordable audio and video components. Choose from Ad-vent, Aiwa, Akai, Audio Control, Carver, DCM, Dynavector,Fisher, Grace, Grado, JVC, Klipsch, Koss, Luxman, Ma-rantz, Mitsubishi, Perreaux, Revox, Sony, Stax, Teac, 3-D,Walker and many more. Free shipping, double -insurance,free brochure explaining how to buy audio and video, trade-in's accepted, nation-wide financing (pending), service fa-cilities, extended warranties and dedicated personnel. M/C,VISA, AMEX welcomed. All, and only, from AMERICANINTERNATIONAL ("The Source"), 745 Alexander Road,Princeton, NJ 08540; 1-609-452-7500; Call now for yourfree brochure.

"AN AMERICAN MASTERPIECE" is how we at AUDIOELITE view the SOTA Sapphire, simply the world's bestturntable. Construction is fantastic. Isolation-unbeatable.Sound-BREATHTAKING!! Truly the Elite table at AudioElite, Menasha, WI 414-725-4431.

ROGERS SPEAKERS Hearing is believing, Audio Den,Smith Haven Plaza, 2021, Nesconset Hway, Lake Grove,NY (516) 360 1990

Eliminate Your"Patchcord Headaches"If you have more compo-nents than places tohook them up, wehave a switchingsystem for you. Forcomplete informa-tion on switch boxesfor your tape decks,signal processors, and speakers,\AMIE OR CALL TODAY.

niles111V-: audio

Dept. A, P.O. Box 160818Miami, Florida 33116 (305) 238-4373

DEALERS: SEE US AT BOOTH 3520 SCES

AMAZING? ISN'T ITThe amount of nonsense that gets thrown around in theaudio world. If you are sick of being treated like a 5 -year -old child by shoe salesmen masquerading as audio ex-perts, you owe it to yourself to give us a call. Our opinionsare based on a solid foundation of experience with thecomponents we sell as well as those sold by our competi-tors. Most importantly we don't simply sell the finest audioequipment available, we arrange it in complementary sys-tems designed to extract the greatest benefit from youraudio dollars chosen from among the following lines werepresent:ACOUSTAT ADCOM ASTATIC AUDIONOTE AU-DIO DESIGN AUDIO INTERFACE AUDIO RESEARCH AUDIONOTE 10 TYPE II BEARD BERNING BRBSYSTEMS COUNTERPOINT DCM DYNAVECTOR FOSTEX FUSILIER GRACE HAFLER ITC JANS-ZEN LINN SONDEK LIVEWIRE MICRO-SEIKI MONSTER CABLE MORDAUNT-SHORT NAD NIT-TY GRITTY PINK TRIANGLE PRECISION FIDELITY PREMIER QUICKSILVER REGA ROGERS SNELLACOUSTICS STAX SUMIKO PHONO AMP SUPEX 3D ACOUSTICS THRESHOLD

SOUND BY SINGER227 Lexington AvenueNew York, NY 10016

(212) 683-0925We ship anywhere!!

APT/HOLMAN PLUS-Own the best value in audio today.The Apt/Holman Preamplifier is the most cost effective andbest sounding preamplifier on the market. Destined to be aclassic! PLUS quality control to assure optimum perfor-mance. Shipping anywhere in the continental U.S. DESIG-NATRON'S STEREO STORES, INC., 260 Old CountryRoad, Hicksville, NY 11801 (516) 822-5277.

ARC D528 $600 1-503-938-3085 NIGHTS

THE MICHELL GYRODEC geometrically and technicallycorrect. Alternative Audio, 5207 Holston Drive, KnoxvilleTN (615) 974 9655

Do Your Friends Believe ... The more drivers the better? The lighter the tracking force

the better?

The more strands the better?

Weighted rumble figures? Lots of watts?

If you've risen above the petty mythology of mass-fiand just want good sound and the best value - then

AudioQuest products are for you.

audioquestPremium quality high and low output moving coils withhollow sapphire cantilevers.

GrooMancerHigh output moving coils & induced magnet cartridges.

Pure copper & litz speaker cables.True litz interconnecting cables & tone arms cables.

For more information please write AUDIOQUEST3857 Birch Street, #610, Newport Beach, CA 92660

A&S OFFERS HIGH -END SPEAKER KITS, auto speakersystems and raw drivers from the world's finest manufac-turers. Meeting the needs of beginners and audiophiles, wecarry Audax, Dynaudio, Dalesford, Jordan, Peerless, JVC,SEAS, Pyle, Seymour, Becker. Featuring the "Bill Reed"Signature kit and Dynaudio's "Authentic Fidelity" kits. Freeprice list. A&S SPEAKERS, Box 7462A, Denver, CO80207. (303) 399-8609.

A SUBWOOFER CAN EXTEND THE BASS RESPONSEof your stereo system. Our Dual Driver ComplimentarySymmetry Subwoofer lowers distortion and improves tran-sient response for tight, solid and accurate bass. The BassAmplifier has over 25 Amps of output current capability forthe high current headroom subwoofers need. Our productsare simple to assemble kits and provide high performanceat modest cost. No soldering is needed. All electronics arefully assembled and tested using high quality components.Call or write today. SONTEK, Dept 116, 332 E. Hope St.,Mesa AZ 85201. (602) 969-1419.

THE MICHELL GYRODEC setting higher standards ofsonic excellence. Audio Excellence, 425, Washington St.,San Francisco CA (415) 433 1335

At last, available to you now!

WONDER CAPSYou will not believe the sonic improvement thatWonder Caps, make to every audio component inyour system! See our advertisement in October Audio,p.114. Write for FREE application suggestions andorder forms.

IAR Dept. WCB2449 Dwight Way, Berkeley CA 94704

ATTENTION ACOUSTAT OWNERS!Can you name three ways to dramatically improve theperformance of your loudspeakers? EPIK can, and if youwant to know too, call or write EPIK AUDIO. (312) 894-0294, 653 Overland Trail, Roselle, II. 60172.

ATTENTION EVERYBODY!!!

ACOUSTAT COUNTERPOINT

ACOUSTIC ELECTRONICS CJ WALKER

AUDIO QUEST DAHLOUIST

ADS DCM

AUDIO RESEARCH DENON

080 DYNAVECTOR

BOSTON ACOUSTICS HAFLER

CARVER KISEKI

VPI HELIUS SIGNET

QUICKSILVER PENTAGRAM RGR

KYOCERA

LINN SONDEK

MUSIC REFERENCE

NAD

ORACLE

PETERSON

ALPHASON

GRACE

CSA AUDIO193 Bellevue Ave, Montclair, NJ 07043

The audio professionals since 1972! Complete cus-tomer satisfaction. VISA, Mastercharge accepted!

201-744-0600SERIOUS INQUIRIES BY PHONE, NO MAIL!!!

AUDIO PULSE SERVICE. Factory trained technicians.Write us about Model One update kits. White Labs, 10528Lower Azusa Rd., Suite 192A, El Monte, CA 91731. (213)446-5346.

Money backguaranteed.

HELP INSURE PROPER TRACKINGWITH THE V-1000 ALBUM CLAMP/INDICATOR. ELIMINATE CRITICALHARMONIC FREQUENCIES.The V-1000 album clamp is to be used while playingyour 331/2's to help guard against record warpage andunwanted resonance.This unit also doubles as a level indicator. Simplyplace it over your turntable spindle and adjust its levelaccordingly. The cost - $34.- Prepaid shipping.

The V-1000 is a "must" for the stereo addict.

Send check or money order to:THE JANATKA ENGINEERING CORP.P.O. Box 83 - Oakville, CT 06779

Please allow 3-4 weeks for delivery.

98 AUDIO/JUNE 1983

FOR SALE FOR SALE FOR SALE

ATTENTION DYNA AND HAFLER OWNERS:Frank Van Alstine can rebuild most Dyna units andHafler DH -200 amps with all new internal circuits. Wetransform Dyna St -80, St -120, ST -150, ST -300, ST -400, ST -4I6, SCA =800, and Hafler DH -200 amps intostate of the art quality rugged POWER MOS-FETamps with new PC cards, precision parts, mos-fetoutput circuits, huge low inductance power supplies,shielded ground plain construction, totally free of tran-sient distortion. We install new circuits in PAT -5, PAT -4 and PAS -3 preamps, complete with precision con-trols, exact RIAA equalization, matched precisionparts, and achieve complete freedom from transientoverload, even on Digital source material. Audiogramsays our complete new circuits for the FM -5 & AF -6make the world's best sounding FM tuner. We offer a30 day satisfaction guarantee or your money back onour $99 super phono cartridge. Why pay for expensivenew equipment when we can make your Dyna unitsbetter than new, for much less than new prices? Weship worldwide and have new 120 volt and 240 voltequipment available. Write or call us for our descriptivecatalogue.

JENSENS STEREO SHOP2202 RIVER HILLS DRIVE

BURNSVILLE, MINN. 55337, (612) 890-3517

ATTENTION: SOTA SAPPHIRE OWNERSSOTA Industries now offers a VACUUM PLATTER Kit toupgrade all Sapphire turntables. Performance equal to theSOTA STAR Sapphire. Write for full information: P.O. Box7075, Berkeley, CA 94707, or contact your dealer.

ATTENTION WANTED: MCINTOSH (SOLID STATE &TUBE), MARANTZ, ARC, WESTERN ELECTRIC, BERN-ING, ETC. TUBE EQUIPMENT. 713-728-4343. MAURYCORB, 11122 ATWELL HOUSTON, TEXAS 77096

ATTENTION WANTED: MCINTOSH, MARANTZ, WEST-ERN ELECTRIC, ARC, BERNING, ETC. TUBE EQUIP-MENT. (713) 728-4343. MAURY CORB 11122 ATWELL,HOUSTON, TEXAS 77096

ATTRACTIVE PRICES: DYNAVECTOR, GRACE,DENON CARTRIDGES, FULTON, LINN, KOETSU, AC-CUPHASE, FR, STAX, SOTA SAPPHIRE, QUAD 63,WALKER, BRB SYSTEMS. COD SHIPPING, SASEQUOTES, (713) 728-4343. MAURY CORB 11122ATWELL, HOUSTON, TEXAS 77096

AUDIO DOCTOR IS IOWA'S HIGH ENDThe SOTA Sapphire is so musical and fully isolated-it'sthe only table you can dance to without destroying records.After comparing SOTA to the Linn, we can't keep Sap-phires in stock. Call about our conclusions: (319) 386-8794, Davenport.

AUDIO ELITE HAS ACOUSTAT1AUDIO ELITE, Menasha, WI, 414-725-4431

AUDIO RESEARCH D9013, Mint, wonder caps, latest wir-ing, $1300. (212) 454-3205

CALL ME.

BOB HEENAN at

Q AUDIO ForACOUSTATADCOMAUDIO TECHNICABERNINGBRB SYSTEMSCRAMOUNDECCADENNESENDYNAVECTOR

GRACE PS AUDIOGRADO PYRAMIDHAFLER SONY CDJANIS SOTA SAPPHIREKRELL SOUTHERKISEKI STAXKYOCERA SUPERMONSTER CABLE 0 WALKERMOREL NITTY GRITTY

Your Tradelns Are Worth More!95 Vassar Street

Cambridge, Ma 02139617.547-2727

VISA riftlierCOrd

The Perreaux SM-2 is thebest preamp I've ever heard,regardless of price",

Quote by Ralph Tarmokky

Professional AudioConsultantsMilburn, NJ201-467-1950

aAUDIO CONNECTION

IN NORTHERN NEW JERSEYTURNTABLES: Denon, Heybrook, Linn, VPIARMS: Helius, Linn, Lurne, Souther SLA-3CARTRIDGES: Argent, Audioquest, Grado, Prome-

thean, WinELECTRONICS: Beard (tube), Bedini, Electrocompa-

niet, Magnum, Naim, PS AudioSPEAKERS: Fuselier, Heybrook, Kindel, Linn,

Rogers, Spectrum, Spica, Vander-steen & more

ACCESSORIES: Audiophile Discs, Cleaning Ma-chines, Last, Littlite, LiveWire, JGAInterconnects-201.239-1799-

615 Bloomfield Ave, Verona, NJ 07044We offer single -speaker demonstration and requestthat you schedule an appointment.

AUDIO HOUSE-FLINT MICHIGANAcoustat Conrad -Johnson SOTA SapphireRogers Belles Reserch Audio ProSpectrum Citation Nitty GrittyLeach LSR&D Revox Systemdek

4304 Brayan, Swartz Creek, Michigan, 48473313-655-8639 by appointment

AUDIO INTERFACE, low impedance moving coil trans-former-$175.00-see recent review in Audio-(901) 767-2990 -days 4901) 323 -5566 -evenings

AUDIONICS CC -2-9290., Mark 614-422-7407

AUDIONICS CC2-$399, Composer-$600. Call Shane402-483-4511

AUDIOPHILE START UPSYSTEM

Turntable:

Cartridge:

Receiver:

Speakers:

(ABOUT $700)

NAD 5025ASIATIC IM -10ENAD 71203D ACOUSTICS "THE CUBE"

SOUND BY SINGER227 Lexington AvenueNew York, NY 10016

(212) 683-0925

LISTEN TO THE MUSIC.

jdesignEVERYTHING YOU HEAR IS TRUE.

AUDIO/JUNE 1983 99

FOR SALE FOR SALE FOR SALE

AUDIO RESEARCH D79, Linn Sondek w,fac. Nirvana,lttok (latest), Koetsu Black (latest and American Import)Cotter M2L $2150. for all. Respond c/o Audio Box 683.

AUDIO RESEARCH D-76-$695, SP3A-$425 CallShane 402-483-4511

AUDIO RESEARCH SP -6E, $1500 or best offer. 217-367-2840.

AUDIO RESEARCH SP-6B-D90. Both excellent with newfactory tubes and adjusted by ARC. (201)762-4943.

AUDITION VAN ALSTINE'S Transcendence amp andpreamp in your home, by his Eastern Representative Callfor appointment (516) 277-5336 ask for Tom.

We have the superb MICHELL GYRODEC on demonstra-tion. Audio Alternative, 1124 E. Elizabeth, Ft. Collins, CO(303) 221 2268

B-1 COTTER TABLE WITH FR66S ARM and Koetsurosewood-Will separate; JBL 660 integ-amp-FR64ss;Teac X -7R, Cotter L transformer-All items must be sold-Best offers, Serious inquiries only, please. Leave message212-427-2203 anytime.

ROGERS SPEAKERS A reference standard, Chestnut HillAudio, 311 Cherry St, Philadelphia, PA (215) 923 3035

DIAMOND NEEDLES and STEREO CARTRIDGES atDISCOUNT PRICES for SHURE, PICKERING,STANTON,EMPIRE, GRADO, AUDIO TECHNICA, ORTOFON, MI-CRO -ACOUSTICS, SONUS and ADC, send S.A.S.E freecatalog. LYLE CARTRIDGES, Dept. A., Box 69, Brooklyn,NY 11218. For fast COD service Toll Free 800-221-0906.N.Y. State (212) 871-3303. 9AM - 8PM except Sunday.

AVAILABLE IMMEDIATELYFROM LARGE INVENTORY

WONDER CAP®polypropylenes and Siemens polystyrenes, includingRIM valves, at low prices. Mod kits too. Premium -quality vacuum tubes, EAR 509 poweramps, Entec'sfabulous Keith Johnson designed active subwoofer,and Strathern ribbon drivers all available at best pricesaround. Write for free info and application notes.

TWO JEFFREYS AUDIO527 W. Butler Dr., Phoenix, AZ 85021

BANG & OLUFSEN PLUS-Finally, audiophile soundquality coupled with elegant styling. Made in Denmark, youcan have European craftsmanship at very affordableprices. Now available-B&O's newest products in stock!PLUS quality control to assure optimum performance.Shipping anywhere in the continental U.S., DESIGNA-TRON'S STEREO STORES INC., 260 Old Country Road,Hicksville, NY 11801, (516) 822-5277.

BEARD TUBE ELECTRONICS, PINK TRIANGLETURNTABLES, AND HELIUS TONEARMS are nowavailable from your audio specialist. For information,contact IAI, 723 Bound Brook Road, Dunellen, NewJersey 08812 or call 201-968-8771.

BEDINI-back & better than ever! Hear the new DE electronics: Audio Connection 201-239-1799

BERNING EA -230 NEW: $730; Grace G-747 mint: $170.Boxed. (804) 232-5072.

B&W 802F LOUDSPEAKERS. One year old. New ($2500)Will sell for $1700. Call Ken nights at 608-244-3551

LEGENDS AS USUAL.These highly respected names can be found at Chestnut Hill Audio Acoustat. Adcom, Amber.Apature, Apres, Audio Pro, B&W. Berning. Cabasse. Cotter. Dahlquist. Dayton Wright.Dennesen, Denon. Discwasher. Dynavector. Fidelity Research. Fourier, Gilmore. Grace,Grado, Hafler, Impulse. Janis, Kenwood Purist. Leach, Marcof, Manah. Monster Cable.Mordaunt-Short, NAD. Oracle. PS Audio, Quad, R G R . Rogers. Signet, Spendor, Stax,Symmetry, Tandberg, Theta. 3D Acoustics. Thorens, Threshold VPI Vandersteen311 Cherry Street. Philadelphia, Pa 19106 (215) 923-3035

CHESTNUT HILL AUDIO Mk

The Mariah LS -2 incorporates many design andengineering concepts that yield a level of performancethat is unprecedented in a loudspeaker of its price.Quoting 'Audio Alternatives', they deliver a generoussupply of clean sound ... They maintain excellentdepth of imaging. Their hallmark is an ability tocapture much of the dynamic shading inherent inlive music. It is a real pleasure to find an attractive,light weight, full -range, floor -standing speaker atthis price that transmits some of the excitementof real music. Highly recommended."

Suggested List $690/pairThe Mariah LS -3 is our newly developed loud-

speaker system. The hundreds of hours of intensiveR&D has provided a blend of accuracy, openess,coherency, and precise imaging never before avail-able at the LS -3's price. We invite you to auditionthe Mariah LS -3. Suggested List $478/pair

MARIAH ACOUSTICSRt. 28, Arkville, N.Y. 12406 (914)586-3295

(Dealer Inquiries Invited)

BEST SOUND PERDOLLAR SYSTEM

(UNDER 2000)

Turntable: REGA PLANAR 3Cartridge: PREMIRE LMXReceiver: NAD 7150

Speakers: SNELL TYPE E'S

SOUND BY SINGER227 Lexington AvenueNew York, NY 10016

(212) 683-0925

BEST SOUND

HIGHEST QUALITYEXCEPTIONAL VALUE

BEARD

AUDIO

SYSTEMS

Tube pre and power amps distributed by IAI, 723Bound Brook Road, Dunellen, New Jersey 08812 orcall 201-968-8771.

BEST TRADES OFFERED. Trade for Acoustat, Berning,Belles, Bedini, Classe, Counterpoint, Perreaux, Music Ref-erence, Ruana, Pyramid, PS, Quicksilver, Oracle, Quad,Sota, Rega, Thiel, Audioquest, Nitty Gritty, etc. AUDIODOCTOR, 5731 North Pine St., Davenport, Iowa 52806,319-386-8794

BEST USED EQUIPMENT. Free shipping. Snell A's$1550. Acoustat II $695. Acoustat 2 + 2 $1550, Acoustat III$1095. Hailer 500A $475. ARC D9OB $1295. Hafler 101$95. McIntosh 240 $425. Marantz 8B $450. Apt Holmanpre $395. MAC 2505 $395. Watson Seven, CounterpointSA -2 $695, Nikko Gamma V $325. Theta 550, Luxman T-2$150., Tandberg, 1OXD 550, Counterpoint TT 175., Naka-michi 581 475, and more. AUDIO DOCTOR, 5731 NorthPine St., Davenport Iowa 52806, 319-386-8794

BOSTON ACOUSTICS PLUS-Dollar for dollar, one of themost exceptional speaker lines to come along in years.Boston Acoustics delivers unbelievable performance atvery reasonable prices. All models in stock. DESIGNA-TRON'S STEREO STORES, INC. 260 Old Country Road,Hicksville, NY 11801 (516) 822-5277.

CABLE TV DESCRAMBLERS AND CONVERTERS.Plans and parts. Build or buy. For information send $2.00.C&D Electronics, Inc., P.O. Box 21, Jenison, MI 49428.

CALL HI Fl BUYS (ATLANTA) for Acutex, Adcom, Aiwa,Apt, AR, B&O, Carver, DCM, Dynavector, Haller, HarmanKardon, Kenwood, Linn, Mirage SM-1, Mission, Mitsubishi,NAD, Nakamichi, Onkyo, Oracle, RGR, Sony, Thorens,3-D Acoustics, Vandersteen, and more. Free shipping, fullyinsured, in the Continental U.S. Just call 404-261-4434 formore information.

THE IMPOSSIBLE TAKES A LITTLE LONGER.

TATE II SURROUND STEREO SYSTEM

..-

UNPARALLELED ABILITYABILITY TO TRANSPORTYOU TO THE LIVE PERFORMANCE.

INCORPORATING MORE THAN 10 YEARS RE-SEARCH AND 5 -PATENTS (OTHERS PENDING)THE MODEL 101A CAN VIRTUALLY RECREATE AMUSICAL EVENT IN ITS NATURAL PERSPECTIVEFROM ANY GOOD TWO CHANNEL STEREO ORVIDEO SOURCE MATERIAL. DIMENSION AND SPA-CIOUSNESS ARE INCREDIBLE, REACHING BEYONDTHE WALLS IN ALL DIRECTIONS. SOUNDS ARESUSPENDED IN SPACE ALL AROUND THE LIS-TENER, EVEN UP AND DOWN WITH IMAGING ANDOPENNESS NEVER HEARD BEFORE. NOTHINGARTIFICIAL HAS BEEN ADDED OR TAKEN AWAYFROM THE ORIGINAL SIGNAL. NO AUDIBLE DIS-TORTION, NOISE. OR CHANGE IN TONAL BALANCE.INTRODUCTORY PRICE $474.95.WRITE OR CALL602-445-6999 FOR FREE INFORMATION.

F 0 S GAT E j-,_RESEARCH inic714 CLUBHOUSE DR. PRESCOTT, ARIZONA 86301

100 AUDIO/JUNE 1983

FOR SALE FOR SALE FOR SALE

CASSETTE DECK OWNERS-High quality blank record-ing tape at super low prices. Will send information and freesample cassette. Write: AUDIOTECH, P.O. Box 3360, Es-condido, CA 92025

BOB CARVER PHASE LINEAR 4000 PREAMP MINTCONDITION, BOXED, $350. 1-806-372-9608.

CROWN BEST QUALITY AMPLIFIERS, TUNERS, PRE-AMPLIFIERS. PROFESSIONAL CONSULTATION-BESTPRICES. EAST: (904) 262-4000; WEST: (213) 840-0878.

CONRAD JOHNSON PV2AR TUBE PREAMP, latest,mint. Near wholesale! (203) 762-5621.

HAFLER, REVOX, TANBERG, CARVER, DBX AND OTH-ER QUALITY COMPONENTS. PROFESSIONAL CON-SULTATION-BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

CONRAD JOHNSON PV3 KIT $299, (Dealer Assembled$329). This is the best value in audio! Order from thecomplete Conrad Johnson line along with PS Audio, Infin-ity, Stax, Pyramid, Boston Acoustics, Grado and the incred-ible VSP Trans Mos Amp state of the art 150 watts/channelfor $825. Also, Used Equipment: such as Stax DA 80M for$295. Trades Welcome! Threshold Audio 409 S. 22ndStreet, Heath, Ohio 43055, #614-522-3520.

ROGERS MONITORS The masters of imaging. The SoundChamber, 2584, Ridge Road West, Rochester, NY (716)225 8660 and 2930, Monroe Ave, (716) 381 9348

COMPACT DISC PLAYERS: SONY, KYOCERA and morein stock and on display $800.00 and up. Good selection ofCD's at fair prices. Catalog $3.00. 0 Audio, 95 Vassar St.,Cambridge, MA 02139 617-547-2727.

ROGERS. No magic or mystique, just music. All newspeakers on demonstration. Custom Stereo, 1391 S. Ham-ilton Road, Columbus OH (614) 235 3531

CROWN D-60 POWER AMPLIFIER with walnut cabinet,$175. 312-343-8553

CROWN SL -1 PREAMPLIFIER-$299, DL2-$1,800 CallShane 402-483-4511

THE MICHELL GYRODEC musically and aestheticallystunning. Audio by Caruso, 13831 S. Dixie Hwy, Miami, FL(305) 253 4433

ELECTRO-VOICE INTERFACE AND CD SERIES QUALI-TY SPEAKER SYSTEMS. PROFESSIONAL CONSULTA-TION-BEST PRICES. EAST: (904) 262-4000; WEST:(213) 840-0878.

Why is AUDIO TREND the only THE ARM dealer inTexas? Because superb audio components deservecareful matching and dedicated set-up. Hear DavidFletcher's THE ARM, along with the finest associatedgear, in a relaxed, friendly atmosphere. AUDIOTREND, 10968 Westheimer, Houston, TX 77042

SUPERTIINEYOUR HAFLER;We improve the best! Using stateof the art techniques and the finestquality parts: Wonder -Caps",computer -grade electrolytics, andpolypropylene caps - the bestbecomes even better!

Improved dynamic range Finer focus and imaging Enhanced definition

MODIFICATION PRICESDH200/DH220 5250.DH500 5300.One year limited parts and labor warranty

Call or write for more information,,Npo4k5a1,4 .1sexTAtiv2R1d6

1509!926-6336

11717° 1_77:11

"The Perreaux preamp is des-tined to be a classic ...incred-ibly high signal acceptance...uncanny resolution of detail...obviously built to last",

:7;

ME

THE MICHELL GYRODEC already becoming a legend.Chestnut Hill Audio 311 Cherry St., Philadelphia, PA (215)923 3035

DB SYSTEMS AUDIOPHILE ACCESSORIES INCLUDE:DBP-2JAU Switch Box with gold jacks $54.95, DBP-6 Pho-no Equalization Kit or DBP-6MC Resistive Loading Kit$34.95, DBP-10 Phono Alignment Protractor $21.95, DBP-12 Audio Cable -10 meter, 400 pF $65.95, DBP-CK Cra-molin Audio Kit $14.95. GOLD PLATED CONNECTORS(eight pack) DBP-13J ('/4") Phono Jacks $12.95, DBP-13JR (34") Phono Jacks $15.95, DBP-13P Phono Plugs$7.95, DBP-14 Spade Lugs $5.95 DBP-9AU Banana Plugs$14.95, DBP-9J Dual Banana Jacks (two pack) $15.95. Forcomplete information write: DB SYSTEMS, Main St.,Rindge Ctr., NH 03461 (603) 899-5121. Orders under $45add $2.50 Hand"ing. Dealer inquiries invited.

DCM TIME WINDOW SPEAKERS $440.-Mint, ThorensTD -125 Turntable, Audiocraft arm, Satin Cart $350. DeccaCart $50. Various Cart $50. 212-465-4717

DENON HA -1000 HEADAMP, mint $225 or B/O. DB 4Aheadamp and power supply, mint $100 or B/0. 217-367-2840 evenings.

C.07.1...C.,:r.

Quote by Gene Halaburt

Hillcrest HiFiDallas, Texas214-528-0774

a

THE MICHELL GYRODEC a step ahead in the art of discreproduction. Audio Consultants, 1014 Davis St., Evans-ton, IL (312) 864 9565

DEDICATED TO AFFORDABLE STATE OF THE ARTThe NEW RGR MODEL FOUR -1 High Gain Pre -amp is theworld's only FULL FEATURE pre -amp offering its level ofquality and performance WITH enough gain to accommo-date moving coil cartridges directly! THE RGR MODELFIVE High Current Power Amplifier boasts an astounding50 amperes of current output per channel, allowing its 110watts/channel the ability to "keep on going" when otheramps "run out of gas"! For more info, call or write RGR6440 N. Ridgeway Av. Lincolnwood, IL 60645 312-673-9320.

DESIGNATRON invites you to audition the remarkablenew PREMIER LMX moving coil phono cartridge. Dy-namic, accurate, transparent, detailed, and affordable.Now playing at DESIGNATRON's, 260 Old CountryRd., Hicksville, NY 11801. DESIGNATRON's NorthCountry Rd., Setauket, NY 11733.

DYNAVECTOR TONEARM DV -501. New-Never Used$250.00 with DV17D cartridge $500.00 cartridge playedapproximately one hour. (505) 299-5909. Ask for Jeff.

GALA SOUND 101,A NEW STANDARD OF EXCELLENCE

Many serious listeners have been misled by certain well in-tentioned but musically and technically incompetent "audiophile"publications.

Thousands of dollars have been spent on poorly engineeredproducts acclaimed in these publications whose expertise lies injournalism, not audio. The goal of improved reproduction of musicis not well served in this manner.

Pianist James Gala has established a unique audio salon inRochester, New York.

GALA SOUND sells correctly engineered and musically accu-rate audio components. We are involved in the recording-bothanalog and digital-of philharmonic orchestras, have a contin-uing dialogue with the world's preeminent audio engineers, andMr. Gala performs in concert regularly.

We fly our customers round trip at our expense from anywherein the continental U.S. to our store for the selection of an audiosystem of $5,000 or more.

Phone (716) 461-3000 today and ask for Mr. Gala. If music isimportant in your life, then you deserve a stereo system fromGALA SOUND.

650 MONROE AVE. ROCHESTER, NEW YORK 14607

(GALA SOUND)}AUDIO/JUNE 1983 101

FOR SALE FOR SALE FOR SALE

EFRMWould you believe? Hartley Polymer Drivers? Transient speed 5 times conventional systems? Complete phase coherency? 25 Hz -45 kHz frequency response?Call or write for more information. EPIK AUDIO, 653 Over-land Trail, Roselle, II. 60172 (312-894-0294).

ELECTRONIC X-OVERS: 6, 12 AND 18DB/OCTAVE. Kitsfrom $106.50. Also Transient -Perfect Crossover model6000-6, $175.00. Filters. Free folder w/reviews. ACE AU-DIO CO. #532 -5th Street, E. Northport NY 11731-2399.(516) 757-8990.

ENTEC-Entertainment Technologies endeavors to pro-vide the audiophile, and professional, with equipment thatreflects the classic values of integrity and common sense.Properly chosen audio equipment involves a pride of own-ership that we, at ENTEC, respectfully cater to. Our Seis-mic Generator gives the solid foundation for listening plea-sure that only complete speaker accuracy can assure. Thisbass reproducing system will work so well, and give suchtrue bass expression to a wide variety of speakers, that youcan experience a remarkable improvement by the simpleaddition of the Seismic Generator.

BEARD ELECTRONICS in NJ at Audio Connection

KITS OR ASSEMBLED

Highly refined, factory priced, speakersystems for the audio purist. The afford-able alternative for those seeking the best.For brochure, call or write usChicago Speakerworks inc5700 N. Western, Chicago, III . 60659

Phone (312)769-5640

1 ACOUSTIC ELECT B&W THE DAVID'NBERNING CO. CRAMOLIN DENON DYNAVECTOR ELITE FURNITURE ENERGY LOUDSPEAKERS FULTON GOLDMUND GRACE GRADO HAFLER HILL PLASMATRONICS JANIS KEITHMONKS KINDEL KOETSU KYOCERA LAST LINN SONDEK LIVE WIRE LUSTRE MARCOF MEGASONICS MONSTER CABLE MUSIC REFERENCE NAD NAKAMICHI NITTY GRITTY PENTAGRAM PLATTER MATTER PSE POLK AUDIO PRECISION FIDELITY PROMETHEAN PROTON P.S. AUDIO PYRAMID QUICKSILVER AUDIO SIGNET SNELL ACOUSTICS SPICA STAX SUMOELECTRIC SUPEX TANDBERG THETAELECTRONICS VPI C.J. WALKER

thelisteningroom590 Central Park Avenue

Scarsdale, N.Y. 10583Mon, Thurs, 10-9 PM

Tues, Wed, Fri, 10-7 PM/Sat 10-6 PM

Credit Cards AcceptedWe ship FREE Anywhere in the

Continental U.S.A.

914-472-4558

ENTEC is currently expanding to broaden our dealer net-work, and will soon have dealers from coast to coast. Wewelcome all inquiries, so call or write today for more details.ENTEC 1016 Morse Ave. #12, Sunnyvale, Ca. 94086(408) 745-0377.

H&B AUDIO CONSULTANTS is southwestern Michigan'snewest audiophile oriented facility. We have selected onlythe finest products, many which have never been availablein this area. You are invited to select from our product lineswhich include Astatic, Belles Research, Berning, Counter-point, Daybreak, Fuselier, Live Wire, Megacable, Mirage,Musical Concepts, OLN, Sota, Sound Lab, Spica, andmore. Hours by appointment. (616)-965-1816 or (616)-962-3910

5 YEARS AND GROWING STRONG! featuring the re-nowned Strathearn ribbon, available with solid hardwoodframes, crossovers, complete systems. Dynaudio, Dales -ford, Panasonic leafs, Wonder caps, Wesco, Shadow Engi-neering electronics. A full line of esoteric but affordable kits,AC acoustic foam for cost effective room treatment. Guar-anteed lowest prices, instant shipping, technical assis-tance. MC/Visa. Noon to 6:00m-1. 608-781-2110 Detailedcatalogue $2. AUDIO CONCEPTS P.O. Box 212 La-Crosse, Wi. 54601

FOR OVERSEAS USE & EXPORTS We supply Stereoequipments & Appliances 110-220V, 50/60 Hz. Best prices,Prompt delivery, Contact: Roma Entp., P.O.B.41127, Cin-cinnati, Oh -45241, (513) 769-5363

FREE CATALOG-CAR STEREO, Speakers, Equalizers,CB, Police -Fire scanners, Radar Detectors, TelephonesJ&M Electronics, 409 Cayuga St., Joliet, IL 60432

FREE SALE FLYERMany bargains in NEW and USED equipment.

AUDIOPHILE'S SOUND STUDIO330 Westgate MallMadison, WI 53711

(608) 273-3211

GRACE-RUBY CANTILEVER FOR F9 SERIESWe offer the Grace 747, 707MK2, 704, Fl1L, F9E andRUBY. Visa and MC. FREE SHIPPING IN US AND PR.OXFORD AUDIO CONSULTANTS, INC., Box 145, Oxford,OH 45056-0145, 513-523-3333, TLX427791.

FREE SPEAKER CATALOG!Woofers, mids, tweeters, hardware, crossovers, grillecloth, plans, kits, information, much more. DiscountPrices! UNIVERSAL SOUND, Dept. AO, 2253 RinglingBlvd., Sarasota, Fla. 33577 (813) 953-5363.

FREE SPEAKERKIT CATALOG 17 proven designs. Also200 drivers' specifications, JBL + polypropylene Thieledata, $3. GOLD SOUND, Box 141A, Englewood, CO80151. (303) 789-5310.

FRIED SPEAKERS & KITSState-of-the-art sound. Try our prices! Fast, free shipping.READ BROS. STEREO, 593 King St., Charleston, S.C.29403. (803) 723-7276. Also Hafler, NAD, Carver, Nakami-chi, Sony digital (disc and PCM-F1).

GARLAND WELCOMES SOTAWe rarely rush to endorse new products, especially turnta-bles. With this noteworthy exception! With great pleasure,we throw our full support to the SOTA Sapphire and SOTAStar Sapphire. Both set new standards for performance,sound, and value. "American turntable" and "world -class"are a rare combination. NOT ANY MORE!! San Jose, CAGARLAND AUDIO, (408) 244-6724.

GAS GRANDSON $200, MARANTZ Model 16-Model7T-$399 both Call Shane 402-483-4511

GENE RUBIN AUDIO-LOS ANGELESNAIM AUDIO LINN SONDEK ISOBARIKSPS AUDIO THORENS ACOUSTATNAD CJ WALKER THIELKYOCERA LS3/5A SPENDORPrepaid shipping (213) 571-1299 (Pacific Time)

GENUINE GOLD LION TUBES-WEST COAST DIS-TRIBUTOR. Hand built -Individually tested with Specifica-tion Sheet. The Worlds Finest Sounding Output Tubes.Shipped Prepaid U.P.S. KT88 ... (Replaces 6550) ... $38ea. MATCHED PRS. KT77 ... (Replaces EL34/6CA7)$30 ea. **ADD $10- ECC83 (12AX7 INDIA). $12 ea.M/C, VISA, MONEY ORDER. SOUND GOODS -2627 So.BASCOM, CAMPBELL, CA. 95008. (408) 559-1920

GOLD CONNECTORS, CRAMOLIN, other goodies. De-tails, SASE. Reference Audio, 368. Rindge NH 03461

GRACE F9E's and F9E Rubys's, New With Warranties."We Will Not Be Under Sold". (206) 323-4987

\LSC VATTHE AUDIOPHILE'S CHOICEDramatically reduces the effects of: Turntable Rumble Acoustic Feedback Vinyl Echo The results -more detail -more music.

WHY SETTLE FOR ANYTHING LESS?

FOR INFORMATION WRITE

Ionian Distribution,Ill Queen Street East, Suite 302a

Toronto M5C 152 Canada,

111

STATE OF THE ART

RIBBON MID RANGEAs Manufactured by Strathearn

ABSOLUTE SOUND'S REFERENCE MIDRANGE

UNSURPASSED CLARITY

SPACIOUS STEREO IMAGING

System Power Rating 100 Watt Max.Sensitivity 86 dB / Watt Mean at 1 meter

Dim. 25 1/8 X 5 1/8 InchesAlso available with.

Advanced flat honeycomb bass drivers, fast leaf tweetersRecommendation for true State of the Art system,

offering savings with no quality sacrificedEXCLUSIVE NOR1H AMERICAN IMPORTER

VARPS AUDIOCALL (201) 671-3074

102 AUDIO/JUNE 1983

FOR SALE FOR SALE FOR SALE

HAFLER DH -220K, DH -110K $550.00 BOTH, DH -355$325.00pr, FUMIG C-1000, M-1000 $550.00 both, HAR-MAN-KARDON CD -401 $585.00, CD -301 $435.00, HK -580i $390.00, HK -680i $500.00, RADIO SHACK MODEL 3COMPUTER, 48K, TWO DRIVES $1725.00, SONY PCM-F1 $1450.00, TC-K555 3 head cassette $350.00, 203-777-1476

HAFLER ELECTRONICS & SPEAKERSWe are now stocking: DH -101K $199.95, DH -101A$299.95, DH -102 $55.00, DH -110K $299.95, DH -110A

$399.95, DH -112 $74.95, DH -160K $299.95, DH -160A$399.95, DH -220K $349.95, DH -220A $449.95, DH-220KE$359.95, DH-220AE $459.95, DH -355 $400.00 per pair(speakers), DH -500K $599.95, DH -500A $749.95, DH-500KE $619.95, DH-500AE $769.95. 101, 200 and 220accessories FREE SHIPPING IN US AND PR. WORLD-WIDE EXPORTING. Visa and MC. OXFORD AUDIO CON-SULTANTS, INC., Box 145, Oxford, OH 45056-0145, 513-523-3333, TLX427791.

HAFLER FM DIGITAL TUNER DH330 at 0 AUDIO NOW.New DH100 preamp coming soon at $150.00. All otherproducts on display and always in stock. Kits, factory and0 -built. Trades taken. Good pricing. Authorized dealer. 95Vassar St., Cambridge, MA 02139. 617-547-2727.

HAFLER IN THE SOUTHIn stock, the superb Haller DH -110 pre -amp and DH -220 &DH -500 amplifiers. Immediate, FREE shipping. Also Fried,Carver, Acoustat, NAD, Nakamichi, Audire, PS, Vander-steen, Klipsch, Sony digital (disc and PCM-F1). READBROTHERS STEREO, 593 King Street, Charleston, SouthCarolina 29403, (803) 723-7276.

HAFLER IN THE WEST! ALL MODELS ALWAYS INSTOCK! REFERENCE AUDIO SYSTEMS. (213) 398-4205.

HAFLER, REVOX, TANBERG, CARVER, DBX AND OTH-ER QUALITY COMPONENTS. PROFESSIONAL CON-SULTATION-BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

The Argent series ofmoving coil cartridges wasdeveloped to offer the audiophilea state of the art componentcapable of reproducing acousticaldetail with astonishing accuracy and clarity.

IN The Perreaux is the mostnon -fatiguing preamp ofsolid-state accuracy I've everheard."

Quote by Mark PinkertonPinkerton AudioCarmichael, Cal.916-485-5725

4HAFLER PLUS-The new Haller DH220 power amplifier-replacing the Did 200, reinforces David Hailer's commit-ment to quality in every product he designs. We carry thefull Haller line, available in either kit or factory assembled.Own some of the finest audio equipment! Now at extrasavings! PLUS -FREE shipping anywhere in the continentalU.S., DESIGNATRON'S STEREO STORES, INC., 260 OldCountry Road, Hicksville, NY 11801, (516) 822-5277.

H&B AUDIO CONSULTANTS is southwestern Michigan'snewest audiophile oriented facility. We have selected onlythe finest products, many which have never been availablein this area. You are invited to select from our product lineswhich include Asiatic, Belles Research, Berning, Counter-point, Daybreak, Fuselier, Live Wire, Megacable, Mirage,Musical Concepts, QLN, Sota, Sound Lab, Spica, andmore. Hours by appointment. (616)-965-1816 or (616)-962-3910

HARMAN-KARDON SEPARATES, RECEIVERS, CAS-SETTE DECKS, TURNTABLES, PROFESSIONAL CON-SULTATION-BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

HEYBROOK TT2 TURNTABLE & HEYBROOK LOUD-SPEAKERS avalable at Audio Connection, 201-239-1799

MC110 Sapphire mounting base - Tapered titanium cantilever-Line contact nude diamond stylus

MC300 Boron cantilever - Parabolic nude diamond stylus

MC310 Aluminum cantilever - Elliptical nude diamond stylus

DIRECT SOUND CORP. 150 FIFTH AVE. SUITE 516, NEW YORK, NI.Y. 10011 (212) 807-1598

HEYBROOK HB-1 $339. PAIRThe affordable link for the demanding audiophile on abudget. By appointment: ACS Limited, 2232 Ward Street,Berkeley. CA 94705. (415) 841-4192.

HEYBROOK HB-2 $489. PAIRA classic design with uncompromizing performance andcompact dimensions. By appointment: Community Audio,318 West Duval Street, Philadelphia, PA 19144. (215) 843-9918.

HEYBROOK HB-3 SERIES II $989. PAIRA monitor quality loudspeaker with all the impact and ex-citement of the original performance. Available at: Audio2000, 2137 Sterling Road, Fort Lauderdale, FL 33312.(305) 962-5300.

HEYBROOK IN GEORGIAHear them at: Stereo Shop 4319 Columbia Road, Martinez,GA 30907 (404) 863-9143

HEYBROOK IN INDIANAHi-Fi Gallery, 811 Broadripple Avenue, Indianapolis, IN46220 (3'7) 253-5141

COTTERSYSTEM 2

The most -exciting and long-await-ed Mitchell A. Cotter System 2 audiopreamplifier is now on demonstrationat dealers worldwide. The completionof System 2 came with the introductionof the CM -2 Control Module, and com-bined with the PSC-2 Phono SignalConditioner, NFB-2 Noise Filter Bufferand MK -2 MC Cartridge Transformerforms a "triaxial" shielded preamp ofuncompromising clarity and versatilityCabinetry of unique design as well asa rack -mount complete the System 2.

MITOHLL A. COTTER Sales Corp.201 E. Rosemary St.Chapel Hill, NC 27514(919) 929-2037

AT YOUR DEALER NOW!

AUDIO/JUNE 1983 103

FOR SALE FOR SALE FOR SALE

HEYBROOK IN MISSISSIPPITreat your ears. Music One, 375 Lake Street, Greenville,MS 38701 (601) 335-0380

HEYBROOK IN NEW YORKAudition the full line at: Audio Breakthroughs, 1534 North-ern Blvd., Manhassett, N.Y. 11030 (516) 627-7333

HEYBROOK TT -2 $500.The turntable that has lowered the price of perfection.Available at Audio Connection, 615 Bloomfield Avenue,Verona, NJ 07044 (201) 239-1799.

ROGERS MONITORS Reference loudspeakers from a ref-erence hi fi dealer, Lyric Hi Fi, 1221, Lexington Ave., NewYork, NY (212) 535 5710 and 146, E. Post Road, WhitePlains, NY (914) 949 7500

ROGERS SPEAKERS Playing music forever. The fullrange on demonstration. Audio House, 4304 Brayan Dr.,Swartz Creek, MI (313) 655 8639

ACTIVE ELECTRONICCROSSOVERS

STEREO BI -AMP $139STEREO TRI-AMP $230

Level controls and sub -sonic filters,summers, optional. Filters, regulatedpower supplies, equalizers, are alsoavailable.

eFree catalog and price sheet

deerde# Eng. Lab.11828 Jefferson BI. Culver City, CA 90230

PHONE (213) 397-9668

HIGH END EQUIPMENTAll kind of American, Japanese, English and German au-diophile products like: Audio -Research, Audiostatic, Acous-tat, Conrad -Johnson, Esoteric A.R., EMT, Goldmund, Infin-ity, Kiseki, Krell, Koetsu, Linn, Magneplanar, Oracle, Plas-matronics, Quad, Revox, Stax, Snell, Threshold, Thorens,Vernissage, Zen and many others at lowest export prices.Ask for latest price list and details. WE SHIP WORLD-WIDE! Hifi Systems, Lengsdorfer Hauptstrabe 75, 53 Bonn1 West -Germany, Tel. 0228-253111 or 253314, Tlx.886646 hfss d.

HIGHEST QUALITY USED EQUIPMENT FOR SALE:McIntosh C32 preamp, $1,000.00; B&W 801 spkrs,$2,500.00/pr; IMF Monitor mktV, $2000.00/pr. Quad ESLspkrs, $1,000.00/pr; McIntosh C28 preamp, $300.00;Tandberg TD20A deck, $1,000.00; JBL SG 520 preamp,$200.00; McIntosh MR 78, $800.00; Carver M400 amp,$295.00; Dahiquist D010 spkrs, $595.00/pr; Tandberg10XD, $990.00, McIntosh MR 71 tuner, $275.00. All usedequipment guaranteed 90 days parts and labor. AudioConsultants, Inc, 1014 Davis Street, Evanston, II. 60201(312) 864-9565

ROGERS NEW SPEAKERS incredible detail and resolu-tion, Hi Fi Gallery, 811 Broadripple Ave., Indianapolis, IN(317) 253 5141

IN STOCK! Audio Research, Thorens, RGR, Hafler, On-kyo, Technics, B&W, Meridian, E.V., Vandersteen, Dyna-vector, Snell, Tascam and more ... For information: P. K.Audio, 4773 Convention Street, Baton Rouge, LA 70806 or(504) 924-1001.

Its a crime to sell a cartridge this good for only 200bucks! That's how we feel about the new PREMIERLMX. It's smooth and neutral, yet detailed and dynam-ic. In a word, unquirky. We'd love to let your hear it.Now in progress at AUDIOVISIONS, 1067 MontaukHwy., West Babylon, NY 11704.

0 Don't Throw OutYour Amplifier...

Buy Pentagrams!We at Pentagram have noticed that all too

often high end speakers are fickle devices thatmust be very carefully matched to your ampli-fier. Some speakers present the amplifier with

such an odd load that all but the most esoteric ofamplfiers sound terrible, clip at low volumes, or

still worse-blow up! The customer must revamp hissystem in order to accommodate his new speakers.

While the Pentagram P-10 and P-8 incorporatethe latest in technology and design, they also have been designed to present the ampli-fier with a smooth, easy load. So, when you purchase Pentagrams you can keep yourpresent equipment, or if you want to get the most of our special engineering you mayuse equipment as esoteric as you like. In either case you will be able to achieve the op-timum quality your equipment is capable of producing.

Changing to Pentagrams is the most significant audible improvementyou can make in any system.

AmertronHollywood, Ca.(213) 466-4321Audio AnalystMadison, Wi.(608) 241-8889Audio DenLake Grove, N.Y.(5t6) 360-1990Audio VisionArlington, Mass.(617) 641-0490CSA Audio DesignUpper Montclair, N.J.(201) 744.0600Digital SoundVirginia Beach, Va.(804) 424-5850Harmony HouseNew York, N.Y.(212) 751-9188

Landes AudioChester, N.J.(201) 879-6889The Listening Room, Inc.Scarsdale, N.Y.(914) 472-4558The Mountain EarCarbondale, Cob.(303) 963-3269The Stereo Lab, Inc.New London, Conn.(203) 447-9802Stereo HouseLos Alamos, N.M.(505) 672.1177Stereo ShopMartinez, Ga.(404) 863-914321st Century AudioPhiladelphia, Pa.(215) 324-4457

Come hear the difference at yourlocal dealer or visit us at the "Con-sumer Electronics Show" inChicago June 5-8 in Room 626A.

Pentagram

"WE SOUND BETTERBECAUSE WE LISTEN!"

AIN PENTAGRAM® INC."A Labor of Love"

207-19 35 AVENUE BAYSIDE, N.Y. 11361(212) 746-6193 (212) 423-3923

JANIS WOOFERS & INTERPHASE CROSSOVER/AMPThe Janis bass systems are the finest universal subwoofersystems available. FREE SHIPPING IN US AND PR. Visaand MC. WORLDWIDE EXPORTING. OXFORD AUDIOCONSULTANTS, INC., Box 145, Oxford, OH 45056-0145,513-523-3333, TLX427791.

J.B.L. SPEAKER SYSTEMS AND COMPONENTSbought, sold and traded. 1-313-229-5191 or 5115 Red Fox,Brighton, MI 48116.

John Garland is moderately enthusiastic about DavidW. Fletcher's THE ARM: "Finally GARLAND AUDIOhas found the pinnacle in tone arms-THE ARM, thefinest, the last word." Hear why at GARLAND AUDIO,325 S. Monroe Street, San Jose, CA 95128.

JRM POWER TOWER AMPS; 3PBP Electronic Cross-overs; Transparency Loudspeakers. Jerry Martin, 3716Broadway NE, Knoxville, Tn. 37917 (615) 688-6501.

ROGERS SPEAKERS Everyones reference standard, Au-dio Excellence, 425 Washington St. San Francisco, CA(415) 433 1335

ROGERS SPEAKERS Your ears should be so good!!Jannen Systems, 214, W. 21st St, Hazleton, PA (717) 4595722

"KAIDE", Sao Win's new MC -10, musically superb, a truereference: at Audio Connection, 201-239-1799

KENWOOD KT -917 (List $1000) $365; Lustre GST-1$143.; Quad EHT $40.; Dalesford D50/200 Driver $37.each; Syrinx PU-1 $198.; Supex SDX-1000 $199. All Un-used; Dahiquist LP1 $175,; Dyna (Van Alstine) ST -70$210; ST -70 $100.; Paragon 12A $399.; Promethean (G2+) $143.; Marantz 20 tuner $199.; Stax UA-7CF/N $168.;

Oracle (latest) $645.; Mission 774 $225.; lonavac tweeters$198. An Mint (212) 784-2939 evenings.

LAB & TEST GEAR-Ferrograph RTS-2, Audionics quaddecoder, Crown IMA, BK Precision 1465 scope, Eico 902scope, Heath 10-102 scope, Heath 1G18 sine -square gen-erator, Heath 1G37 FM stereo generator, Heath SG -8 r.f.generator, Lectrotech FC-50 freq. counter, Heath AG -9Aaudio generator, meters: BK Dynascan 2830, Knight 440-06235, Ohmeter M220, Heath 1M-105, Lafayette fieldstrength, Eico capacitance, Daystrom ohms, Heath volts,Realistic SPL. $1,000. f.o.b. Florida. Respond to AUDIOBOX NO. 6831.

uxmanADSM KHallerTandbergWharfedaleMotets,3-D Acoustics GraceAudio Control DenonNAD HitachiOrtofon OnkyoAIWA SMERevox MXRKenwood SherwoodMitsubishi & Many More!

We Deliver FREEAnywhere in theContinental USA

the SOUNQAppeack,6067 Jericho Tpke., Commack, N. Y .

Charge it...Call 516-499-7680 Ext-82

1111 1111111111111111 1111 II 111111111111111111111111 1 I=WE WILL

=NOT BEE BEAT! _E

_= SUPER SELECTION. FULL WARRANTY -FAST DELIVERY == HI- Fl, HIGH END& VIDEO =_

=

.:"= L-

= - , /== VISA=

;',r,-=.., IteAt''-r- /001.11111( 1 iS '11'

1 1 -,: .N11r, Ill, li a

1I

t; ii, 1:7'

CALL (203) 934-5291 NOW!

=7 =:. =

r

=MAC -

: * AUDIO PEOPLE *.1 °rang* Ave., Wst Hamm, CT OW 6 =

104 AUDIO/JUNE 1983

FOR SALE FOR SALE FOR SALE

LEVINSON HOD, ML -1, ML9, LNC-2, Nakamichi 682ZX,Counterpoint SA -1. (913) 764-6482

LEVINSON LNP-2 PROF PREAMP, Factory checked 3,17/83, mint cond. $1695. Threshold 400w amp $695. 212-465-4717

LINN/NAIM In NJ: Audio Connection, 201-239-1799

LINN PRODUCTS, MODIFICATIONS & NAIMWe are pleased to offer the complete line of Linn and Nairnproducts: turntable, cartridges, arms, speakers, electron-ics, NIRVANA & VALHALLA MODIFICATIONS FOR LP12.Visa and MC. FREE SHIPPING IN US AND PR. OXFORDAUDIO CONSULTANTS, INC. Box 145, Oxford, OH45056-0145, 513-523-3333, TLX427791.

LISTEN METRO N.Y. Audition New York Acoustics superbline of custom built speakers in your home. FeaturingStrathern midrange, ultra smooth super tweeters, stunningcabinets. Choice of finish and grill covers. Prices start at$260. per pair. Call 516-277-5336 for information and ap-pointments

LUXMAN 5M20 POWER AMPLIFIER, $600., 312-343-8553

MAGNAPLANER TYMPANI 1-D, white, $900 (203) 467-0319 Evenings & Weekends

MAGNUM'S 95 FM PREAMPLIFIER-the only way toclean FM. Audio Connection, 201-239-1799

MARANTZ, McINTOSH original tube covers, cabinets,manuals. Reasonable (805) 646-5862

MC INTOSH AUDIO EQUIPMENT Bought-Sold-Trad-ed-Evenings & Weekends, 607-865-7200. If no answer607-865-5387 S.D.R., P.O. Box 176, Walton, NY 13856

MC INTOSH BOUGHT AND TRADED. Kenwood 917 Tun-er $295. Levinson ML1 w/latest pwr. supply $850. DaytonWright SPA w/latest mods. $575. Beveridge RM1/2d$1100. Levinson ML3 $1900. Counterpoint SA2 $675.Scheiber decoder b/o over $950. Oracle Delphi $725. B&O1900 rec. $300. Sumo The Power 400 w/pc $925. Meridian1055 $500 pr. Thorens 124 $125. Tech EPA 500 arm $300.Pyramid 2 + 2w's $1000. Several desirable MAC & Marantzpieces. More used hi -end gear every week. Yours wantednow for cash. Sound Investments (212) 377-7282. NewYork, 7 days. Noon till 3PM only.

McINTOSH BOUGHT, SOLD AND TRADED. 1-313-229-5191 or 5115 Red Fox, Brighton, MI 48116.

McINTOSH MC -275, MR -67, C-26. CITATION Eleven, 18.PIONEER Spec -1, CT -F1000, PL -610. SONY ST -J60.M&K Sattelite's & Volkswoofer. DYER, 717-299-4161

McINTOSH MR78-$998, 2120-5900 Call Terry 402-391-3842

"The Perreaux's craftsmanshipand attention to detail are imme-diately evident... listening tothe Perreaux preamp and poweramp was simply stunning),

Quote by Kerry LikisLikis Audio1103 21st St.Birmingham, Ala.205-933-8135

MCINTOSH MR71 $450, MC2100 $475. MA230 $285,MPI-4 $1,000. Marantz #6 $200, 15 $175, 7T 160, SLT12U$285, 22 $140, 23 $99. Harman Kardon Citation 1 $150.Citation 3X $225. Citation 11 $175, Citation 12 $200. Pana-sonic SH3433 4 channel scope $300. Kenwood RC6060A$200. KT7000 $99. Teac AL700 elcaset factory sealedoriginally $1,100 only $349. Sony EL -4 elcaset factorysealed $139. Sony Ferrichrome elcaset tape. Mullard12AX7's $5.95. Dahlquist D010's w/stands $650. KLH 9'spairs $1,000, $750. Quads $750. RCA 770X's $1,000.AKG 412's perfect $1,800. Neumann KM86 $750. MCI 8channel $9,000, Tandberg 9000 $300. Ampex 350 w/con-sole perfect condition seldom used $1,750. ReVoxA77MK3 $650. A700 w/unused 1/2 track headblock $2,250.Crown SS1444 52,000. IC150A $225. DBX 124 $175, 122$125. Advent 100A $135. Scott 265A's $300, 130 $200,4312 $160. Stax MK3's sealed $150, Koss ESP9B $125.Audiopulse #1 $300. Adcom GFA1 $250. GAS Thoebe$300. Nakamich rack system $1,699. 300 prerecorded ht./rtapes $6 each. some Crown, Mac, Marantz & SAE cabi-nets. Some Dual, ReVox, McIntosh parts. Manufacturer'soriginal service manuals -no red tape, no minimum -fastMartin Gasman 779 Worcester St. Wellesley. MA 02181617-CEL-TICS

ORACLE "DELPHI" OWNERS. You won't get the bestsound your turntable can produce without our beefier, lowripple power supply. Improved imaging, dynamic range andinstrument timbre guaranteed! THE MOD SQUAD, 144Athena Street, Leucadia, CA 92024 (619) 436-7666.

McINTOSH MR 78 TUNER, with walnut cabinet, originalpacking. One year old. Excellent condition $1050. JerryKaldor, 218-728-1414

Close-out Sale !Fons CQ30 Mark 1

$125 plus shipping. limited quantitySend money order to:

no refunds.90 day warranty

Lord BrothersP.O. Box 6430Denver, Colo. 60206

303-534-7590Colorado residents add tax

Can a cassette soundas good as a record?The KMP-2 candramatically close the gap.With a good deck, top quality tape andthe Kinergetics Magnetic Processor for tapedecks (KMP-2), the quality will be directly comparable.

It is not an equalizer. The processing uses the same technologyas that employed in the KMP-1 for magnetic cartridges.

The KMP-2 has a suggested retail of $110.00. Why not audition the KMP-2 and hear for yourself.

SEE US AT CESConrad Hilton,3rd Floor LICENBY SE"""ASR

6029 Reseda Blvd. Tarzana, CA 91356 (213) 345-28511-03_

KiNERGETICSINCORPORATED

al,

MCINTOSH PLUS-McIntosh instruments are the Labora-tory Reference Standard for the world. McIntosh designstheir equipment for a long life with low maintenance andhigh quality performance. PLUS -FREE test report on yournew McIntosh equipment, on request, FREE shipping any-where in the Continental U.S., Prompt delivery, Creditcards accepted. DESIGNATRON'S STEREO STORES,INC., 260 Old Country Rd., Hicksville, N.Y. 11801 (516)822-5277

MISSION 770'S, Linn LP -12, Grace 707, Ortofon MCII 20latest models, each unit $900., best offer. (215) 874-7404

MITSUBISHI TUNER, Preamp, Amplifier, Power meter-$1,000 Micro Tuner, Preamp, Amplifier-$600 Call Terry402-391-3842

MONSTER CABLE .654 A FOOT CUT TO ANY LENGTH.GOLD PINS .506 EACH. Mariah Speakers, Precision Fi-delity. Call or write for other great prices. VISA and MC.TROLLY STEREO 451 Moody St. Waltham MA. 02154(617) 891-3337

No hyperbole - just the kindof knowledge, creativity anddependability you expect froma dealer who represents thesemanufacturers.

Acoustat LASTApt -Holman MagnepanAudel MarcofAudio Pro M & KBoston Acoustics Monster CableBryston N A DCarver NakamichiDahlquist Nifty GrittyDenon OracleD C M ProtonDynavector PyramidFidelity Research SignetGem SupexGrace ThresholdHailer VandersteenKeith Monks V PIK E F Win LabsKLH & more .. .

5 listening rooms . .. NewEngland's largest Audiophilerecord dealer . . . Keith Monksrecord cleaning . . . In-storeservice .. . All shipments pre -paidand insured in the continental U.S.

105 Whitney Ave., New Haven, CT(203) 777-1750

Mon., Tue., Wed., Fri. 10-6, Thurs. 10-8, Sat. 10-5

AUDIO/JUNE 1983 105

FOR SALE FOR SALE FOR SALE

MERRILL AR MODIFICATIONSSUB CHASSIS K1T-$69.00 Designed to deaden

the AR turntable and allow replacement of originaltone arm. Consists of acoustically dead replacementsub chassis and new bearing.

SPRING KIT-$8.00 Allows use of wide variety oftone arms, platter pads, record weights, and otheraccessories.

REPLACEMENT HIGH TORQUE MOTOR-$45.00OAK REPLACEMENT BASE-$135.00 Beautiful

solid oak base with lead lining for extra deadness.LEAD COATING SERVICE-$10.00, REPLACE-

MENT SPINDLE-$25.00PLATTER BALANCING SERVICE-$10.00GLASS & LEAD PLATTER PAD-$35.00

Underground Sound, 2125 Central, Mphs, TN38104, (901) 272-1275.

MOUNTAIN EAR HAS STRATHEARN RIBBONS. 303-963-3269

ROGERS SPEAKERS Legendary performance, MainStreet Music, 315, E. Hyman Ave #208, Aspen, CO (303)925 2921I

MERRILL TURNTABLE-NOW ACCEPTING ORDERS

FEATURES: Solid oak hand -built base, lead and foamlined for deadness. Seven layer laminated plinth. Oneof the best looking turntables ever built. Three pointenergy absorbing subchassis. Three -fourth inch thickarm mounting boss (thickest of any turntable made).Four adjustable feet. Twenty-four pole synchronousmotor with enough torque to handle a ten pound plat-ter. A spindle system that will handle hundreds ofpounds of weight. Two piece platter, machined out ofmatching aluminum. 100% balance guaranteed. Non -obsolescent. New accessories can be added to theexisting turntable. Comes with a 10 gauge soft vinyldust cover. Many more features! The bottom line:Listen and compare to the high priced foreign turnta-bles. Price: $385.00 COMING SOON FOR THE MER-RILL TURNTABLE: A subchassis tuning system; moreadvanced than any on the market. A unique recordvaccum platter. FOR MORE INFORMATION AND APICTURE: Please send a self-addressed stamped en-velope to: UNDERGROUND SOUND, 2125 CentralAve., Memphis, TN 38104

Avenue 425 Park Avenue South

10at 29th StreetNew York, N.Y. 10016212 685-8101/8102

We respect our customers;you can make your own choice from among:

Sony Esprit Sony PCM-F1 McIntosh Nakamichi SAE -X Black Koetsu Denon Mitsubishi Spendor Quad B&W Bang & Olufsen

Tandberg 3000 Series Kirksaeter Obelisk* Shahinian Acoustics Sequerra Pyramid Accuphase ADS Mordaunt Short Signet Supex Benchmarli

Thresholdprecision crafted audio components

The Threshold FET one STASIS preamplifier places fewerelectronic devices between the source and the listener than anyother preamplifier.

Threshold considers it axiomatic, all other things being equal, thata simple audio circuit will always sound better than a complexaudio circuit. The FET one approaches the theoretical limit of thisideal by using a single fet for the voltage gain required of eachpreamplifier stage.

Sophisticated peripheral control circuits assure that this single fetis always held at maximum linearity while the output topologyemploys, for the first time in a preamplifier, Threshold'sproperietary STASIS technology.

Component parts, assembly craftsmanship and finish aremaintained at the highest level, and each FET one is individuallyhand calibrated for exact phase and amplitude adherence to theRIAA characteristic.

Threshold

Threshold Corporation1832 tribute road suite e sacramento california 95815

For a full color brochure and technical specificationsheet on the full Threshold line write:

MUST LIQUIDATE MANY CROWN AMPS, preamps,equalizers, cross-overs. Most new with warranty, someused. Phone 616-641-5555

NAD 1020 and 3020A Owners!Find out what high quality parts such as metal filmresistors, polypropylene capacitors and gold platedjacks can do for the sound of your NAD. Free info withSASE. Kindel Audio, 1710 Newport Circle, Unit 0,Santa Ana, CA, 92705

NAD IN PITTSBURGH-BETTER SOUND CONCEPTS3281 W. Liberty Ave., Pgh, PA 15216, (412) 561-3312

NAKAMICHI: SHAMEFULLY LOW PRICES. New AndUsed. BX-2, LX -3, LX -5, ZX-7, ZX-9, Dragon. AudioWork-shop (206) 323-4987

NAKAMICHI PLUS-Featuring the incredible BX-1 cas-sette deck. Now you can have Nakamichi performance forunder $300. We also carry the full line of Nakamichi prod-ucts. PLUS -FREE calibration and bias adjustment, on re-quest, FREE shipping anywhere in the continental U.S.DESIGNATRON'S STEREO STORES, INC., 260 OldCountry Road, Hicksville, NY 11801, (516) 822-5277.

NEW 83 RAW LOUDSPEAKER CATALOG, 250. Menis-cus Systems, Dept A, 3275 Gladiola, Wyo., MI 49509

-NEW-RG DYNAMICS' VIDEOSONICSTEREO PHASOR

Now, from ANY video source, RG's VC -1 delivers a qualitysignal worthy of being amplified through your stereo sys-tem! It's the audiophile answer to terrible video sound.Since compression is 80% of the problem, and noise is20%, the VC -1 combines expansion with effective elimina-tion of the hiss and noise PLUS superb synthesized stereosound! The VC -1 is simply UNBELIEVABLE! For more info,call DSA Marketing 1-800-323-3665 (IL call 312-673-7003)9-5pm CST

PHASE LINEAR 700 WATT AMP $450. F.M. Acoustic 600Lab Power Amp $895. 212-465-4717

,T Oe DegveryAme,

The BestDoesn't Mean theMost Expensive.Low prices on a huge selectionof name brand hi -end All unitsare new with full warranty Letour experts guide you to thebest sounding system for yourdollar Call for information orwrite for a free catalog

( 0 1 audio advisor, inc.Box 6202 Grand Rapids. MI 49505 (616) 451-3868

REM111:10411CArt01WMOST'STEREODISCS

-,InF-75-77-- -ti" -.17B* -:'The Thompson Vocal Eliminator can actually remove most or

virtually all of a solo vocalist from a standard stereo record andyet leave most of the background music untouched! Not anequalizer! We can prove it works over the phone. Write or callfor a brochure and demo record below. COST: $349.00

YOU SHOULD. SEE USFor:

Time Delay/Ambience Studio Echo/Reverb Tape Noise Reduction Parametric Equalization Electronic Crossovers Compressor/Expanders Mic Preamp/Mixers

11181

Innerne-nennernklYst.tVerSztittabla

1::m1L111821188820.121818taggatisigewilIttatxleiti g...iskased

IMITZ=VgWe manufacture a full line of high quay,such° aud,recording

equipment. You will probably have to pay twice as muchelsewhere to obtain comparable quality. Only Direct Sales makeour prices and quality possible. Write or call for a 24 pagebrochure and demo record.

Write to: LT Sound, Dept. AU, P.O. Box 338,Stone Mountain GA 30086, Phone (404)4934258

106 AUDIO/JUNE 1983

FOR SALE FOR SALE FOR SALE

ROGERS SPEAKERS A growing legend, all new modelson demonstration. North County Stereo, 131-B El CaminoReal, Encinitas, CA (619) 753 3546

ROGERS SPEAKERS Capture the magic in music. New-port Audio, 1000, N. Bristol, Newport Beach, CA (714) 8510112

THE MICHELL GYRODEC Engineering artistry, a sonicand visual delight. Newport Audio, 1000 N. Bristol, NewportBeach, CA (714) 851 0112

THE MICHELL GYRODEC nothing beats it for isolationand beautiful styling. North County Stereo, 131-B El Ca-mino Real, Encinitas, CA (619) 753 3546

1-601-323-0750 FOR LOWEST PRICES: NAKAMICHI,HK, JBL, BOSE, POLK, DBX, GRADO, and more. DY-NAMIC SOUND, Box 168, Starkville, MS 39759. 1 PM -9PM, M -F.

ORACLE PLUS-Own the finest sounding turntable in theworld. The Oracle will greatly improve the total sound ofyour system. Plus - quality control to assure optimumperformance and free shipping anywhere in the continentalU.S. DESIGNATRON's STEREO STORES, INC., 260 OldCountry Road, Hicksville, NY 11801. (516) 822-5277.

OTL AMPLIFIER (c)The OTL AMPLIFIER (c) was perfected by Julius Futter-man in 1954. Now, for the first time the audiophile maylisten to a tube amplifier that is not penalized by the outputtransformer. With a slew rate of 33 volts per microsecondand a bandwidth of 200KHZ the OTL AMPLIFIER (c) hasthe speed of a transistor amp and the harmonic correct-ness only possible with tubes. There are 8 models of theFutterman OTL AMPLIFIER from a 25 watt triode to a 250Watt mono amplifier. For a complete technical discussionof tube electronics and technical papers on OTL AMPLIFI-ERS, send for our 72 page book, $2.50 domestic, $5foreign. New York Audio Laboratories, Inc., 33 North River-side Avenue, Croton -on -Hudson, NY 10520

PHONO PICKS UP RADIO SIGNALS? RELIEF is money -back guaranteed with the A2 Phono Input Fitter. Simplyplug in between phono cables and preamp. Does not affectsonic quality. $17.50 (stereo pair). Audioworks, P.O. Box1288, Traverse City, MI 49685-1288.

PINK TRIANGLE: A WELL KEPT SECRET. The bestsounding turntable from England. For dealer list, con-tact IAI, 723 Bound Brook Road, Dunellen, New Jer-sey 08812 or call 201-968-8771.

PORTABLE EQUIPMENT: UHER, Sony, Sennheiser,AKG, Beyer -Dynamic. Send SASE (Specify Model), Car-penter Sound, Box 1321, Meadville, Pa. 16335-0821

POWER TO THE PEOPLE-Most complete publicationavailable on regulated power supply construction. $16.50.MEGACABLE-Our interconnect and speaker cables de-liver what others only talk about. 37e SASE brings regula-tor/cable information. MIDWEST AUDIOPHILE SUPPLY,BOX #3, Emerson NE 68733, (402) 695-2509

ROGERS No magic or mystique, just music, all new speak-ers on demonstration, Audio Dimensions, 794 N. Wood-ward, Birmingham, MI (313) 642 6383

From the worlds oldest and largest speaker kit manufacturer,SPEAKERLAB. Save up to 30% on the speaker designs criticsrave about From tiny bookshelf speakers to slender, floor -standing models to massive folded corner horns. PLUS thelatest in state-of-the-art car speakers. Ail in Speakerlab's1983 catalog. Send for it today. (Allow 4 - 6 weeks fordelivery. Send S1.25 for faster, first class postage.)

Dept. A36, 735 N. Northlake WaySeattle, Washington 98103

((The sound of the Perreaux pre-

amp is astonishing. Light yearsahead of the competition ...open,extended, detailed, natural...willhandle any cartridge or MD.',

quote by John DudleyAccurate Audio1027 No. Coast HighwayLaguna Beach, Cal.714-494-2030

ro II

PRECISION FIDELITY ELECTRONICS ATGENE RUBIN AUDIO (213) 571-1299 (PAC)

PRIVATE STUDIO SELLING QUALITY AUDIO EQUIP-MENT: amplifiers, decks, microphones, speakers,preamps, processors, turntables, etcetera. Listing avail-able: Studio, 8608 Dairyview, Houston, TX 77072

ProAC ProAc ProAcEngland's finest loudspeakers are now imported for yourlistening pleasure by Modern Audio Consultants. West:2888 Bluff St., Suite 210, Boulder, CO 80301, 303-449-1440 East: 112 Swanhill Ct., Baltimore, MD 21208, 301-486-5975 New! The fantastic, tiny ProAc Tablette!

PS AUDIO COMPLETES YOUR MUSICALITY QUESTwith the integrated "ELITE". Affordable, powerful, elegantand sophisticated. Hear it at O Audio along with the newPS 2C, PS -IV and MCA -2. 95 Vassar St., Cambridge, MA02139. Export model, too. 617-547-2727.

PS AUDIO-FANTASTIC!In stock! Fast, free shipping. READ BROTHERS STEREO,593 King Street, Charleston, South Carolina 29403, (803)723-7276.

PS AU 310 AND REFERENCE AUDIO PRESENTthe new -WO C PLUS amplifier. Incorporating innova-tive technology, the results are absolutely stunning.The Two C Plus exhibits a tremendous (and accurate)soundstage with superb lucidity that will bring you totears. Your jaw will drop when you hear this latestaddition to the PS Audio family. A true bargain at $600.

PS Audio's new MCA moving -coil headamp is theworld's first high -impedance solid-state headamp.Featuring improved regulation, this headamp worksmagically with Dynavectors and Koetsus. Only $255with high -current power supply.

Serious audiophiles wall find the new PS Audio Con-ductive Fiber Anti -Static Record Brush indispensible. Itis the best dry-cleaning system available. Forget theliquid brush systems that turn dirt into sludge withimpossible to remove residues. Special introductoryprice: $12.00. Will be $'5.00 7/1/83.Coming next month: a big surprise from PS Audio.

REFERENCE AUDIO SYSTEMS: 18214 DaltonAvenue

Gardena, CA 90248. (213) 398-4025.

PS AUDIO'S "ELITE" INTEGRATED AMPLIFIER-thebest integrated, period! Audio Connection, NJ 201-239-1799

The art ofshaping sound.

Does your music sound better inthe next room? Pro audio killsresonances with SONEXacoustic foam, and now you hEcan too. Control acousticsand turn your room into astudio. At midrange,SONEXhas twice the sound absorption ire,

of good carpeting for about thesame cost. If your dealer doesn'thave SONEX, send us $40 for asample box of four 24"x 24"sheets, or write for our colorbrochure.

albruck/usatechniques with foams3800 Washington Ave. N. Minneapolis, MN 55412

AUDIO/JUNE 1983 107

FOR SALE FOR SALE FOR SALE

QUICKSILVER, PENTAGRAM, COUNTERPOINT, Preci-sion Fidelity, David Berning, Audire, PSE, Sota, Audio-quest, Spica, Klyne. The Mountain Ear. Evenings andweekends, 303-963-3269

REGA, HEYBROOK, SYSTEMDEK, COUNTERPOINT,AUDIRE, HARMON KARDON, KENWOOD PURIST, KYO-CERA, SHERWOOD, CLARKE SYSTEMS, FRIED, ROG-ERS, SATTERBERG, ADCOM, GRACE, GRADO, LINN,PREMIER, SUPEX plus many accessories and more ...E.A.R.S., P.O. Box 658-U, W. Covina, CA 91790. M/C,VISA, MONTHLY SPECIALS

Music Lovers & AudiophilesTake Notice!

We are proud to announce the

GRAND OPENING of

APPLE AUDIOfeaturing the finest names in audio such as

ADS Amber Audio -Pro Audio Control Beyer Calestian Dynavector D.C.M.

F.A.S. Grace H.K. Last Monster CableOrtoton Ungo Box Pyramid Sonus

Sumlko Sherwood Thorens3D Acoustics And More

Prompt, Courteous Service Free Shipping in the U.S.A.Feel Free to call for information

MC/VISA 110-220 VOLTS

diappleTau o74.18 37th Ave.

Jackson Heights, N.Y. 113721212) 507-0561 Open 7 DaysExit Broadway -Roosevelt on 8 OF

278

RARE PARAGON EA BASS AMPS $185, VanAlstineDyna 120B $265 (408) 649-1115

CROWN BEST QUALITY AMPLIFIERS, TUNERS, PRE-AMPLIFIERS. PROFESSIONAL CONSULTATION -BESTPRICES. EAST: (904) 262-4000; WEST: (213) 840-0878.

HAFLER, REVOX, TANBERG, CARVER, DBX AND 0TH -ER QUALITY COMPONENTS. PROFESSIONAL CON -SULTATION-BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

RECORDED SOUND TURNED INTOA LIVE PERFORMANCE

Although disc and tape recordings fall short of thisideal, it is now possible to overcome the loss of innerdetail and of transient information as well as otherlimitations of the recording process. The PATENTEDcircuitry of the ROBERT GRODINSKY SIGNATUREONE EXPANDER is designed to analyze and correctfor shortcomings in recordings.

The improvements in resolution of each instrument,in the accuracy of attack, the correctness of harmonicstructure and stereo image must be heard in your ownsystem to be appreciated. You will hear information onall of your records and tapes as well as FM which wasonly hinted at before. Music sounding more real andwith background noise reduced.

We invite you to try the SIGNATURE ONE on ourmoney back offer. If you do not agree that your stereosound is markedly improved, return it for a full refund.The price of $495.00 includes shipping anywhere inthe U.S. To order or for more information, call DSAMarketing at 1-800-323-3665 9-6 pm CST (IL call 312-673-7003). VISA and MASTERCARD accepted.

HARMAN-KARDON SEPARATES, RECEIVERS, CAS-SETTE DECKS, TURNTABLES, PROFESSIONAL CON-SULTATION-BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

ROGERS LS3/5A MODIFICATION. You can keep thecharacteristic "Rogers" sound while cutting back on distor-tion and beaming. Want more smoothness, tighter bass,and a cleaner high end? Contact THE MOD SQUAD, 144Athena Street, Leucadia, CA 92024 (619) 436-7666.

SAVE 75%, BUILD YOUR OWN SPEAKERS. Crossovers,Woofers, Mids, Tweeters Instructions. HI-FI, Pro, Auto.Send $2.00 for catalog -refundable. DKI Audio, Davis, II.61019

PS AUDIO = SUPERB VALUEGene Rubin Audio (213) 571-1299 (PAC.)

CROWN BEST QUALITY AMPLIFIERS, TUNERS, PRE -AMPLIFIERS. PROFESSIONAL CONSULTATION -BESTPRICES. EAST: (904) 262-4000; WEST: (213) 840-0878.

0 AUDIO TURNTABLE BARGAIN FOR JUNE, 1983:LINN Basik LV-X on WALKER CJ55 with GRADO GTE + 1$595.00 set up and delivered anywhere USA. 95 VassarSt., Cambridge, MA 02139. 617-547-2727.

SEE UNDER CATEGORY "WANTED TO BUY" David Yo

REFERENCE RECORDINGSRR 11, the Utah Symphony performing Berlioz' "SYM-PHONIE FANTASTIOUE," has prompted hundreds of cus-tomer responses like these. Thank you all! W. Peplinski,WI.: "Very, Very Impressive!!!" J. Warren, IL.: "An incredi-ble listening experience -Thank you, Thank you ..." E.Ellis, CA.: "Absolutely a fabulous recording together with a1st class performance- this could be the best interpretationavailable!" M. Meshginpoosh, OH.: "Simply put; Bravo!" Toorder this special 45 rpm two record set, send $25 toReference Recordings, Box 77225X, San Francisco. CA94107. (408) 289-1462. Visa/MC welcome. Free Catalogs!Dealer inquiries invited.

ELECTRO-VOICE INTERFACE AND CD SERIES QUALI-TY SPEAKER SYSTEMS. PROFESSIONAL CONSULTA-TION-BEST PRICES. EAST: (904) 262-4000; WEST:(213) 840-0878.

QUAD 405 MODIFICATION. We've compared this beautywith the finest amplifiers and walked away smiling. It's aknock -out! Solid-state authority combined with tube sweet-ness and musicality. THE MOD SQUAD, 144 AthenaStreet, Leucadia, CA 92024 (619) 436-7666. HAFLER, REVOX, TANBERG, CARVER, DBX AND OTH-

ER QUALITY COMPONENTS. PROFESSIONAL CON -SULTATION-BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

QUAD OWNERS CLUBWe are sharing info, set up, mods to make the best better.Send for info to QUAD OWNERS CLUB, 33 North River-side Ave., Croton -on -Hudson, NY 10520 HARMAN-KARDON SEPARATES, RECEIVERS, CAS -

SETTE DECKS, TURNTABLES, PROFESSIONAL CON -SULTATION-BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

QUALITY JAZZ/CLASSICAL RECORDINGS IN COM-PLETE 72 PAGE CATALOG PLUS BESTSELLER SUP-PLEMENT. Also books, gifts, cassettes. $1.00 (refundable)MUSICAL CONCEPTS, Box 53 AA5, Cedarhurst, NY11516.

REGA PLANAR 3, with factory arm, mint condition $350.1-203-889-1937 SOUTHER LINEAR ARM -right on track!!! at Audio Con -

nection, NJ 201-239-1799

$5200for a legend

ELA DIFFERENCEGOLDMUNDj____,

MBR ELECTRONICS1 WORLD TRADE CENTER, SUITE 1913

NEW YORK, N.Y. 10048

THESOURCE

Direct free -port pricingAmerican International Audio Video

745 Alexander Rd., Princeton, N.J. 085401-609-452-7500

CALL OR WRITE FOR YOUR FREE BROCHURE

QUALITY AUDIO COMPONENTS

Complete Shipping and Export Fecilities AvailableBank Cards Accepted

Accuphase Adcom Ariston Audio Interface Beveridge Bipolar CounterpointDB Systems D&K Imports Decca Dynavector Electrocompaniet Entec

Estoric Audio Research Grace Hefter (SOS Kiseki Kimber Kable KlyneKoetsu Krell Lustre Nova Ortofon Orsonic Precision Fidelity

Sideral Akustic SME Snell Souther Spica Stax Sumiko SupexSymmetry Talisman Thorens Triad VPI VPS Labs

Call for appointment and/or information or send $2.00 (Refundable/ for product brochure.

GREENFIELD EQUIPMENTBOX 225D RIVER FOREST, IL 60305 1312/ 7714660

DISCOUNT WORLDCAR STEREO SPECIALS

CONCORDHPL122HPA25

COMPLETE $319

CLARION 5700R $ 1 9 9SONY XR-50 Silver 9 69JENSEN R-200 $99PIONEER KP-1500 $79

TDK SAC90Pioneer Car Stereo KP4500Pioneer Car Stereo KP5503Pioneer Car Stereo KP8500Pioneer Car Stereo UKP4205Pioneer Car Stereo UKP5600Pioneer Car Stereo UKP7600Pioneer Car Stereo UKE3100 169.Pioneer Car Stereo KES100 179.Pioneer Car Stereo KE6100 209.Pioneer Car Stereo UKE7100 229.Sony Car Stereo 0915 129.Sony Car Stereo X625 149.Sony Car Speakers XS101 39.Sony Car Speakers XS211S 39.Whistler Radar Dect. 01000 189.

250 TDK MAC90 '4.75119. Pioneer Car Speakers TS106 33129. Pioneer Car Speakers TS108 39139. Pioneer Car Speakers TS1622 40119. Pioneer Car Speakers 151644 60169. Pioneer Car Speakers TS168 80189. Pioneer Car Speakers TS411 49.

Pioneer Car Speakers TS694 55Pioneer Car Speakers TS695 89.

Pioneer Car Speakers TSX6 75Pioneer Car Speakers TSX11 199

Sony Car Stereo X655 239.Sony Car Stereo 0675/758 299.

Sony Car Speakers XS102 49Sony Car Speakers XS606 69.Fox Superfox Remote 199

Maxell UDXL2C90Jensen Car Stereo RE530Jensen Car Stereo RE520Jensen Car Stereo RE518Jensen Car Stereo RE512Jensen Car Stereo RE508Concord Car Stereo HPL101Concord Car Stereo HPL112Concord Car Stereo HPA-25Clarion Car Stereo 75006Clarion Car Stereo 555011Clarion Car Stereo 51506Philips Car Speakers EN -8741 4

Altec Car Speakers 6X9 -4C 85Page Alert 4444 99

'2.95 Maxell UDXL2SC90 '3.75319. Jensen Car Speakers J1242 89.269. Jensen Car Speakers J1069 45.259. Jensen Car Speakers J1065 69.239 Jensen Car Speakers J2037 69.199. Jensen Car Speakers J2033 99.149. Concord Car Stereo HPL115 199,169. Concord Car Stereo HPL118 209.69. Concord Car Stereo HPL122 289.

209. Clarion Car Stereo 31508 79.149. Clarion Car Stereo 300E0133 125119. Clarion Car Stereo 100E084 65.

9. Philips Car Speakers EN -8769129.Altec Car Speakers 562 69.AudioSate 32.

DISCOUNT WORLD, P.O. BOX 191, MINEOLA, N.Y. 11501 516-294-6136Shipping charges are $4.00 per order to continental U.S.A. We accept money orders, cashiers or certified checks.

Personal checks - 3 weeks delay. N.Y.S. Residents add sales tax. Write for FREE catalog.

108 AUDIO/JUNE 1983

FOR SALE

SONY DIGITALThe new CDP-101 digital audio disc player (plus the discs),and the PCM-F1 digital audio processor. In stock. Freeshipping. READ BROTHERS STEREO, 593 King Street,Charleston, South Carolina 29403, (803) 723-7276.

SOTA COMES TO MUSIC CITY USAVISION Audio, the only SOTA dealer in Tennessee wel-comes the Sapphire and the Vacuum Star Sapphire. Giveus 15 minutes and we will show you what new turntabletechnology REALLY means. Remarkable sound, remark-ably stable. In NASHVILLE, (615) 242-5810.

SOUND INVESTMENTS. Think again before selling ortrading -in your better components at a big loss to localaudio shops. CONSIGN your components at reason-able prices by listing with me in NYC with its large andgrowing audio market. I also buy audio equipment forcash and invite trades. Good prices for your less thanperfect gear too! Call or wine for information. H.L.Schneck, P.O. Box 153 Homecrest Sta., Brooklyn, NY11229 or call between noon and 3pm (NY time) 212-377-7282

SOUND INVESTMENTS: TIMPANI III'B $1200 pr.DENON-DP 7000 W/FR 12 arm on top Denon base $625.MET. 3 $1200 pr. MET 2 + 2W $1400 pr. Mac XR7 spkrs.$1100. KENWOOD LO7D $1100. DENON DP 80/Cotter BIbase/FR 66 arm $1400. MARANTZ mod. 19 rec. w/case$600. Mac MP14 scope b/o. Prices reduced on items inFeb. Audio ad pg. 73. Call noon to 3 p.m. (N.Y. time) 212-377-7282

SOUND LAB ELECTROSTATICS R1 with custom sub -woofers $1700., Threshold Stasis II $1450, Bryston 3B$650. 312-894-0294

SPECIAL SALE SPECIAL SALEon the following. NEW: Audio Master MLS1 $250, Audion-ics Composer $1000, Dynaco MKIII Modified (pair) $700,Grace 704 $225, Hatter DH102 $55, Lentek Prepreampli-fier $120, Linn Basik LV-V $99, Rega P2 (marred cover)$350, Rega P3 Blank $350, Rogers A100 $800. DEMON-STRATION: Denon DA307 $140, Denon HA1000 $250,Hailer DH101AP Modified $275, Haller DH200A $300, LinnPrepreamplifier $175, Rogers A75S2 $375, Spendor SA1Rosewood $400, Theta 1A $800, Theta OPT (pair) $1000.USED: Audionics Revox RVR/RVP $200, Denon AU320$75, Dynaco tube electronics, Harmon Kardon HK701$175. All sales final. Free shipping in continental US. OX-FORD AUDIO CONSULTANTS, Box 145, Oxford, OH45056, 513-523-3333.

FOR SALE

SPENDOR BC -1, Janszen Electrostatic Tweeters, REGA-3 Turntable, ACE-BSP Preamplifier, (412) 327-7193

SPENDORS ARE SPLENDIDExcellent loudspeakers, reasonably priced: SA1, SA2,SA3, BC1, LS3/5a and Prelude. Visa and MC. FREE SHIP-PING IN US AND PR. WORLDWIDE EXPORTING. OX-FORD AUDIO CONSULTANTS, INC., Box 145, Oxford,OH 45056-0145, 513-523-3333, TLX427791.

ROGERS FABULOUS new speakers, from $450 to$6,600/pr. The Sound Mill, 115, Main St., Mount Kisco, NY(914) 241 1230

ROGERS MONITORS By far the best value in Britishspeakers. The Sounding Board, 75, Franklin Ave., Ridge-wood, NJ (201) 445 5006.

ROGERS ... Our favorite speakers. Shimeks, 505, W. 6thAve., Anchorage, AK (907) 277 3223

ROGERS SPEAKERS Amazing clarity and incredible im-aging. Soundscape, 406, W. Coldspring, Baltimore, MD(301) 889 1134

ROGERS STUDIO ONE: exquisite tonal quality + preciseimage + tremendous dynamics = a Winner. Sound Com-ponents, 2710 Ponce de Leon Blvd., Coral Gables, FL(305) 446 1659

START WITHSEPARATES SYSTEM 1

Turntable:

Cartridge

Preamp:

Tuner:

Amplifier:

Speakers:

(About $2600)

REGA PLANAR 3ADCOM HCE-1ADCOM GFP-1ADCOM GFT-1AADCOM GFA-2SNELL TYPE E S

SOUND BY SINGER227 Lexington AvenueNew York, NY 10016

(212) 683-0925

THE MICHELL GYRODEC for music lovers only, Sounds,502. Kaaahi St.. Honolulu HI (808) 847 0104

ERROR -FREE LINEAR TRACKINGThe Souther Linear Arm, the only purely mechanical linear -tracking tonearm is now available in animproved, production model. The new unit features a 1.1 gram tonearm/headshell fitted to ourquartz track system. The tonearm fits most turntables and will extract superior sound from anycartridge. Our EOLJI-MASS- configuration ensures perfect tracking of warps and permits anultra -low moving mass. Available at selected dealers or direct for immediate delivery. $700 00 ppd.

Literature available-Dealer inquiries invited.

ICJ SOUTHER ENGINEERING CORPORATION429A York St., Canton, MA 02021 (617) 828-5050 -'.TENTED-MADE IN USA

SiderealAkustic.

Sidereal Akustic_ Audio Systems Inc.L 4035 Oceanside Blvd., Unit G-57 Oceanside, CA 92054/

The Sidereal Akustic Model Four Loudspeaker System utilizes a lightweight ribbon tweeter instead of the usualdome. This decision was based on the fact that flexure ripples which are transmitted from a dome's periphery to itscenter cannot be terminated as with a cone or ribbon. The dome is therefore a potentially resonant device.The coil of a ribbon transducer is etched on the diaphragm itself, the diaphragm is therefore subject to uniformdrive power over its entire surface. This provides superb sound reproduction with less distortion and better phaseresponse. Also, the impedance is flat over a wide frequency range and this maintains a constant damping factoreven at high frequencies.To create a whole loudspeaker system capable of reproducing sound with a high degree of fidelity to the original,Sidereal Akustic has carefully integrated the individual components into a fully coherent, synergistic design.Write or call for free literature and information.See us at the summer C.E.S. at Conrad Hilton Room 637. Dealer inquiries invited.

(619)726-3150

It's notthe Rubywe put onthe Grace.

It's the Gracewe put inthe Ruby.

Grace's F -9E Ruby is a revolu-tion in fixed -coil cartridges. Thenew solid ruby cantilever givesthe legendary F -9E the transientquickness previously associatedwith only the finest moving coildesigns. Ruby exhibits muchless resonance and flexion thancommon metal cantilevers,assuring a virtually perfect one-to-one enercy transfer betweenstylus and magnet. It took Graceto combine this technology withthe proven musical superiority ofthe F -9E.

Listeners are already callingthe F -9E Ruby the world's finestsounding cartridge that doesn'tneed a step-up. We agree. We thinkyou'll agree after you visit yourGrace dealer and listen to the F -9ERuby.

Note, Owners of Grace F -9E and F -9L

cartridges may update with the RS -9 Ruby

replacement stylus.

"MHOP.O. Box 5046. Berkeley, California 94705

AUDIO/JUNE 1983 109

FOR SALE FOR SALE FOR SALETHE MICHELL GYRODEC musically neutral, superior iso-lation, engineered to perfection, beautiful and affordable.The Sound Mill, 115, Main Street, Mount Kisco, NY (914)241 1230

STOP DAMAGE TO YOUR STEREO, TV, Computer andVCR's caused by AC power failures, with our model TW-1.For information, write: Custom Electronics, 3401 ElginDrive, Decatur, GA 30032

STRAIGHT-LINE TONE ARM, OPTO Electronics, lowmass Plexiglas $800., M&K arm OPTO update $200. AU-DIOETC, 613 S. 8th, La Crosse, WI 54601, (608) 782-5845eves.

SUBSONIC FILTER KIT $50Rejects subsonic and most audible low frequencynoises: warps, rumble, often even acoustic feedback.Kit instructions: $2.50 (refundable); kit $50; assem-bled: $85 postpaid. Free catalog. SSS, 856A LynnroseCt., Santa Rosa, CA 95404

SURROUND EFFECTSFROM YOUR STEREO MOVIES on Laserdisc, CED, VCR!Rear channel gives experience of Stereo Theater Sound inyour home. Free information. Surround Decoder $99. Cine-ma Box, RT. 3, Box 163, Prairieville, LA 70769

SWL's QUICKSILVER INTERCONNECT CABLE.Fine strand silver coated copper cable with teflon di-electric and outer jacket with machined gold plateRCA's. Aveliable in 1/2, 1, & 2 meter stereo sets ($25,$30, $45 respectively. Add $3.00 S&H. TX res. add 5%sales tax). Custom lengths, connectors, bulk cable,speaker cable. 33-50% off all Japan MC cart., arms,transformers. Dealer inquiries invited. Send SASE forcatalog. VISA & MC by phone. STEPHEN WORSHAMLABS 3720 Maplewood Dr., Dallas, TX 75205, Ph.409-763-6061.

SYMDEX LOUDSPEAKERSWe are pleased to introduce the further improvedSymdex Sigma and the new companion subwoofer, athree-way system of unparalleled accuracy and lowcoloration. This reference system, which sets newstandards for definition and transparency, is a result ofthorough optimization of all design factors plus con-struction and components of a quality never beforeused in loudspeakers. The sonic results of this efforthave been described by listeners as a redefinition ofthe state of the art of dynamic loudspeakers.

For further information, contact: Symdex Audio Sys-tems, Inc., P.O. Box 8037, Boston, MA 02114, 617-938-8180.

Current Symdex owners note that factory updatesare available.

VANDERSTEEN IN NJ only at Audio Connection, Verona

senorBBC Specification LS3/5A

BEFORE SPENDOR WAS ESTABLISHED, WHILE SPENCERHUGHES WAS STILL WITH THE BBC RESEARCH DEPT., HE

DEVELOPED THE BASIC DESIGN FOR THE LS3/5A. IN COM-MON WITH OTHER CURRENT SPENDOR DESIGNS, THE LS3/5A IS USED EXTENSIVELY THROUGHOUT BRITISH BROAD-

CASTING. THE LS3I5A WILL PROVIDE THE FINEST REPRO-DUCTION OBTAINABLE FROM A LOUDSPEAKER OF ITSCOMPACT DIMENSIONS, FOR LESS THAN $500 THE PAIR.

RCS Audio International, Inc.1055 Thomas Jefferson Street, N.W.

Washington, D.C. 20007

THRESHOLD AUDIO is offering Conrad Johnson, VSP,Pyramid, PS Audio, Grado, Sony, Marantz, Infinity, Stax,VPI, YSL and more. Prepaid shipping. Trade-ins Welcome!Stax DA -80M, retail $1500, sell $295. 409 South 22ndStreet, Newark, Ohio 43055, (614) 522-3762, or 3520.

THE FINEST WISCONSIN-ACOUSTAT!Just one of the fine lines AUDIO ELITE represents isACOUSTAT. We have their superb electronics and theirreference loudspeakers. AUDIO ELITE takes the time toproperly set-up these respectable speakers so you canhear why the ACOUSTATS are one of the finest soundingloudspeakers anywhere. Come and listen to the entireACOUSTAT line. AUDIO ELITE, 221 Main St., Menasha,WI 54952, 414-725-4431.

WALKER CJ55 & LINN BASIC LV-VThis is a most agreeable, attractively priced, complete discsystem. Visa & MC. FREE SHIPPING IN US AND PR.WORLDWIDE EXPORTING. OXFORD AUDIO CONSUL-TANTS, INC., Box 145, Oxford, OH 45056-0145, 513-523-3333, TLX427791.

THIRSTY EAR-Nakamichi, NAD, harman/kardon,Apt Holman, Tandberg, Thorens, Bang & Olufsen,Dahlquist, Polk Audio, Dynavector, Adcom, Mordaunt-Short, Conrad -Johnson. THIRSTY EAR, 9 East Main,Bozeman, MT 59715, (406) 586-8578

THE MICHELL GYRODEC Redefining the state of the art.Stereo Horizons, 3760-11 Sports Arena Blvd., San Diego,CA (619) 223 2424

THE MONOLITH LOUDSPEAKERIt redefines the state of the art for affordable loudspeakers.Its clarity, transient response, imaging, and cabinet con-struction are virtually second to none. You have beenwaiting for this one for a long, long time. Literature 53.Monolith, P.O. Box 222, W. Springfield, Massachusetts01090

THE SOUNDING BOARD (NJ) KNOWS TURNTABLESDoes your turntable have the shakes or jitters? Does it cry"TILT" when you start to boggie? Audition the very musicaland very well -isolated American SOTA Sapphire, whichsounds as well as it performs. Compare in Ridgewood,(201) 445-5006.

TWEETER OF THE MONTH CLUB!High frequency masterpieces from all over the world,picked at the point of perfection and delivered to your door.A gift to delight the audio gourmet. WHERE ELSE BUT ...MADISOUND Box 4283, Madison, Wisconsin 53711 608-767-2673

WIN LABS STRAIN GUAGE CARTRIDGE, w/power sup-ply. $125. SME S/2 tonearm, DKL modified, $100. Infinity"Black Widow" tonearm, needs wiring harness, $75. ESSHeil AMT I Towers, excellent, $500/pr. Ten foot transmis-sion line subwoofers, two Kef B200's in each; homely, butDEEP, TIGHT BASS. $700/pr. Call evenings (703) 560-6598.

VTA ADJUSTMENT FOR YOUR TONE ARM. SUMI-KO'S new vertical tracking angle adjustment devicesallow you to dial in correct VTA during play. VTA-7 forGRACE G -707/G-747; VTA-U for most other separatetone arms. Now at your GRACE dealer or call 415/843-4500 for nearest location.

TELEOUEST CATALOGFilled with over 350 exciting state-of-the-art electronicproducts. Latest in high-tech engineering and design. Toorder dial toll free 1-800-327-TELE. Or send $4.95 plus$1.40 for shipping and handling (Fla residents include 5%sales tax) to: TeleQuest: 3015 North Ocean Blvd., FortLauderdale, Florida 33308

TEACS: A-4300SX with remote control, $425; A-2300SX,$295; Burwen DNF1201A, $165; Onkyo T-4090 tuner,$190; Carver C-9, $175. All mint. Norman Tetenman, 20Whitebirch Lane, Commack, N.Y. 11725.

25% TO 60% SAVINGS on Prestige Audio products fromEurope and Japan. Our prices often better than otheroverseas suppliers. Products not sold in U.S. available.Ship worldwide. For information and price list send $1 to:Audiophile Exports Co., 507 Dragon Seed Building, 39Queens Road Central, Hong Kong. Run by audiophiles.

VANDERSTEEN-DIMENSIONAL PURITYWe offer the remarkable 2C's at $990 per pair (stands$75). Visa and MC. FREE SHIPPING IN US AND PR.WORLDWIDE EXPORTING. OXFORD AUDIO CONSUL-TANTS, INC., Box 145, Oxford, OH 45056-0145, 513-523-3333, TLX427791.

HARMAN-KARDON SEPARATES, RECEIVERS, CAS-SETTE DECKS, TURNTABLES, PROFESSIONAL CON-SULTATION-BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

ROGERS MONITORS All new models available at VictorsStereo, 8, E Erie St., Chicago IL (312) 642 6349 and 5701.Dempster, Morton Grove, (312) 966 5590

HAFLER, REVOX, TANBERG, CARVER, DBX AND OTH-ER QUALITY COMPONENTS. PROFESSIONAL CON-SULTATION-BEST PRICES. EAST: (904) 262-4000;WEST: (213) 840-0878.

TELEFUNKEN, APMPEREX, GENALEX and other top THORENS TD126SME--5795, TD160111B--$225 Callquality audio tubes available. Contact S.J. Wallace, 1203

Shane 402-483-4511Success St., Pittsburgh, PA 15212.

Houston and the Gulf CoastMark Levinson/Spectral/ Bryston/ Lin )/Acoustat/Magnepan/Dahlquist/Nakamichi

Klipsch/Apt-Holman/Pyramid/Stax/Boston/DCM/Hafler/NAD/Rega/AmberNAIM Audio/Meridian/Adcom/Fidelity Research/Thorens/Grace/Chapman

AudioConcepts2200 5W Freeway at Greenbriar Houston, Texas 77098 713/527-0774

Credit Cards Accepted Freight Prepaid in Continental USA

04i1/40 e e_,Ap...\)6v cp-

46-

N11*.Vak.

Go p..0 ,e,b.

eg'C5Ctle<sds

4#.

01,049,0S'6,4.4'0

ote,sers)49:e4ecZoce

PO V'se:0.°XeGOSCA 5!:44

::O\ A21. \:3

(sckCPP°Ses14.19

`

e se\

O\ draooCc

p,e470e0.<\6

;S2.

\Cr&SOVC' '

14,sQeso ,o -o` .10.--

C*' CO4 CX-k 0-C:14 4, Ce .,,,

exvCfr' \ '

c1/40,, P.

PG ,00..-177 Sound Beach Avenue, Old Greenwich, CT 06830

Major credit cards honored. Open 10 AM -6 PM Mon -Sat.

110 AUDIO/JUNE 1983

FOR SALETHRESHOLD S/150 STASIS POWER AMP. Latest. Nearwholesale! (203) 762-5621.

THRESHOLD STASIS 1 POWER AMPS. Only 160 unitsbuilt and only 30 units in the U.S.A. Threshold 800S poweramplifier. only 12 built. Joe Sammut, P.O. Box 214615,Sacramento, Ca., 95821, 916-726-2263

THRESHOLD STASIS II, Mint, $1,300. 817-573-4097

TIME DELAY, SOUND CONCEPTS SD550, $350. DBX-3BX Dynamic Range Expander $350. 212-465-4717

TUBES-ALL TYPES, DISCOUNT PRICES. Many Oldiesand hard to find types. SASE for list. Antique Radio & TubeCo., Dept. 601, 1725 W. University Tempe, Arizona 85281

THIEL LOUDSPEAKERS ATGENE RUBIN AUDIO (213) 571-1299 (PAC)

RECORDS

ALL AUDIOPHILE ALBUMS 5-50% OFFI Over 500 ti-tles, including new compact digital discs. Save on accesso-ries too! FREE catalog: FOR THE RECORD..., Box21201-G, Columbus, Ohio 43221.

AUDIOPHILE RECORD GALLERY discounts on ultrasound direct disc, half mastered, digital, Japanese Imports,more! We specialize! Only the finest fidelity recordings.Catalog $1.00 P.O. Box 1073, Vienna, VA 22180

"KAMIKAZE SALE"of imports from Japan. Until 7:00 PM June 30, $11.50 willbuy almost any single Japanese LP (exceptions: CBS/EPIC and albums list priced over 2500 Yen)

You can select from anyone's list of Japanese imports orour own 1983 catalogs:

Pop/Rock (4500 listings) send $ 5.00Jazz (3500 listings) send $ 4.00Complete (with Soundtrack, Blues etc) $10.00

Expect a 6-8 week wait. Send us your want list now! Ordersmust be received by June 30. Check, Visa, MC, AmEx,C.O.D. (add $2.00). Domestic shipping: $1/album up to $5.SUPERSOUND RECORD SERVICE, box 82-A, ForestPark, IL 60130, (312) 366-1300

QUADRAPHONIC RECORDS and 08s! Really! The fabu-lous Fosgate Research Tate II Surround Stereo System;our price only $439.95. Hard -to -find ambisonic UHJ record-ings. Free catalog. QUAD Incorporated Enterprises, Box19, Capron, VA 23829.

SHEFFIELD MISSING LINC, Sealed-Best offer -201-366-9836

SHEFFIELD S-9 PLAYED ONCE IMMAC $500. New Ma-yorga Vol -3, Houston Lab -2, James Lab -3, Brahms Lab -4,Grusin Lab -5. Umbrella Rough Trade, Nexus. Crystal ClearDentie, San Fran, Byrd. Mobile Fidelity Steely Dan, Super -tramp, Star Wars, Power & Majesty. M&K Blu 1&2. All new.Others. Make offer. SAE 5000, Dahlquist MX -1, other stuff.Write for listing. P.O. Box 48, Cook, Mn 55723 or 218 6665203 p.m.

IF YOU CARE ENOUGH TO HEAR THE VERY BEST-

MODEL BPA-100BLISTEN TO THE SPECTRASCAN BPA-1008 (BASIC)AND BPA-100M (METERED) HIGH TECHNOLOGY, HIGH DEFI-NITION AMPLIFIERS MEETS ALL DESIGN CRITERIA OFOTALA AND CHERRY NESTED MULTIPLE FEEDBACKLOOPS. WIDE BANDWIDTH, HIGH SLEW RATE 15KHZDOMINANT POLE. CONSTANT FEEDBACK, ZERO PHASE -SHIFT AND HIGH DAMPING FACTOR FROM DC TO 20KHZ REGULATED POWER SUPPLY FOR TRUE DC COUPLING ANDINCREDIBLY SOLID BASS FULL PROTECTION CIRCUITRY,ACTS ON POWER SUPPLY, NOT AMPLIFIERS 100 W/CH, 8OHMS 175 W/CH, 4 OHMS 350 W, 8 OHMS, BRIDGE/MONO

COMING SOON: TWO PREAMPLIFIERS. (MODELS LCA-10 AND LCA-20) ONE 150 W/CH AMPLIFIER (MODEL BPA-200B) AND A PAIR OF SPEAKERS (ASHLEY -100L). WRITE ORCALL FOR BROCHURES AND PRICES.

SPECTRASCAN INC5923 N. NEVADA AVE.

COLORADO SPRINGS COLO. 80907303-599-9254

DEALER AND REPRESENTATIVE INQUIRIES INVITED

RECORDS

PROTECT YOUR LPS POLY SLEEVES for jackets 13e.Poly lined paper 150. Square bottom inner sleeves 80.White jackets 35e. Postage $2.50. House of Records,Hillburn, NY 10931

MFSL 001 and 003 "Mystic Moods". Sealed $150 for Both;E.L. Harris MFSL-015 "Quarter Moon" sealed $55. CallSteve Stone 617-782-1247

THOUSANDS OF LIKE NEW LP's and prerecorded tapes.Catalogue-$2.50. House of Records, Hillburn, New York10931.

TELARC RECORDS, ALL MINT $9. each, plus shipping,$11. if sealed. (212) 454-3205

SPEAKERS

ELECTRO-VOICE INTERFACE AND CD SERIES QUALI-TY SPEAKER SYSTEMS. PROFESSIONAL CONSULTA-TION-BEST PRICES. EAST: (904) 262-4000; WEST:(213) 840-0878.

BUSINESS OPPORTUNITIESMAKE MONEY FROM HOME, excellent opportunities! De-tails $1. Chamberlin, 4166 Almond Street, Riverside, Ca92501

TAPE RECORDINGS

DIRECT -TO -TAPE RECORDINGS: REAL TIME DUPLI-CATED REELS (2/4 track, Dolby B/C, TypeX), CAS-SETTES (Dolby BC, TypeX), and DIGITAL CASSETTESfrom MASTER TAPES. FREE CATALOG. Direct -to -Tape,14-R Station Ave., Haddon Heights, NJ 08035

OUR BOOKS TALK! Best sellers, classics, childrens sto-ries, famous plays, on quality cassettes. Listen to PaulScofield bring Dr. Zhivago to life! James Mason recreatesthe Lost World! For free catalog send inquiry w/#10 SASEto The House of Gitts, Dept. A300, 7235 S. Woodward -202,Woodridge, IL. 60517

SERVICES

LOST AND FOUND. NATIONAL SECURITY SERVICE.Protect components, tapers, video, computers. Call 804-424-5800. SASE. "Finders", Box 2500-A, Chesapeake,VA., 23320.

RAPPAPORT REPAIRS AND MODIFICATIONS. TriodeLabs, P.O. Box 7717, Ann Arbor, MI 48107. (313) 482-2686.

TAPE HEADS RELAPPED. $20. each. E. Maher, 5 EvansPlace, Orinda, CA 94563.

-the new Astatic Cartridge (a movingflux design) sounded as good, if not betterthan the Dynavector Diamond."

The Audiophile Society Minutes

The Moving Flux Cartridge is equal or superior to thefinest low output moving coils. Yet it can be directlyconnected to your phono section without an interveninghead amp or transformer.

The Moving Flux is the only high output cartridge thatdirectly transmits the styli's signal to the coils withoutthe use of distortion causing pole pieces. - The sameadvantage the finest low output moving coils have.

Astatic's unique Moving Flux cartridge is available fromNorth America's better audio salons.

tASTATIC Audio Division

\MIL BOX 120 Conneaut, Ohio 44030

STILL LOWERLOUDSPEAKER

DISTORTIONO

O Yof Ot_s :(

S-

0 IS.

O ,°63c

yY-0a

,0

<1:3

foi

Ce

a

co 0

ao

The VMPS Super Tower/ R is a magnificent nine -driver, six -way ultra -low -distortion loudspeakerwith neutrality of response, wide bandwidth, andhigh output level capacities to please the mostdemanding audiophile.Total harmonic distortion with one Watt drive doesnot exceed 0.5% (22Hz-30kHz). Exclusive fea-tures such as minimum phase response, single ampor biamp operation without an external crossover,internal wiring with Monster Cable, mylar/ poly-propylene crossovers, no resonances whatsoeverwithin the audio range, and now mirror -image, dualline -source baffle design combine to afford you, thelistener, with music reproduction of astoundingrealism second only to our highly acclaimed, 6'/efttall Super Tower 11a/ R system.Hear the Super Tower/ R at the dealers listedbelow, or write us for full information on all theVMPS floor -standing systems including the Mini -Tower II ($309ea kit, $439ea assem), Tower II($419ea kit, $599ea assem), and Super TowerII./ R ($9139-1199ea kit, $1499-1699ea assem)..All prices include free shipping in USA and kitsare supplied with cabinets fully assembled. Fullreviews and test reports from Bert Whyte, B.V.Pisha, Hifi-News & Record Review, and Hifi Buyer'sGuide also available on request.

VMPS AUDIO PRODUCTSdiv. Itone Audio

1016 Contra Costa Drive, El Cerrito, CA 94530(415) 526-7084

Hear VMPS at The Listening Studio, Boston, MA; MikeHilliard Audio, Shreveport, LA; Odin Sound, Longmont, CO:Mainline II Johnstown, PA; Wallace Brown Audio, Okla-homa City, OK; The Long Ear, Big Bear Lake, CA; WoodlandStereo, Woodland Hills, CA; Sounds Unique, San Jose, CA;The Listening Post, San Francisco, CA; !tone Audio, ElCerrito, CA, A-Vidd Electronics, Long Beach, CA.

AUDIO/JUNE 1983 111

SERVICES WANTED TO BUY OR TRADE AD INDEXAUDIO PULSE REPAIR SPECIALISTS. Modification Kitsavailable for Model One's. WALT'S AUDIO SERVICE, 398Granada Street, Rialto, CA 92376, (714)-875-0776.

AUDIO PULSE SERVICE. Factory trained technicians.Write us about Model One update kits. White Labs, 10528Lower Azusa Rd., Suite 192A, El Monte, CA 91731. (213)446-5346.

TAPE AND TAPE RECORDERS

A TRUCKLOAD AMPEX AUDIO TAPE SALEHigh quality open reel 1800' or 2400' on T reels, usedonce, excellent. Case of 40, $45.00. Cassettes avail-able. Valtech Electronics, Box 6-A, Richboro, Pa.18954

CROWN RECORDERS. We upgrade SX-824 with installstion of DBX-150. Gives lower distortion and 90d8 SNPermits use of -Crown mixer. Full tape monitor. Crownservice our speciality. Ideal Acoustics, 110 Willow Road,Starkville, MS 39759. 601-324-1020 anytime.

REEL TO REEL TAPES-mostly Ampex, used once,unboxed, 1800'. 50 Reels $48.00; Sample Reel $2.00.Prices included shipping. Free boxes while supplylasts. COD orders accepted. Paragon Sales, Inc. P.O.Box 2022, Joliet, IL 60434, 815/725-9212.

WANTED TO BUY OR TRADEAUDIO INTERNATIONAL COMPANY SINCE 1974. Allitems listed by Aberst, Corb, Yo. Highest price, Integrity.(805) 646-5862

A BETTER DEAL for your McIntosh, Marantz tube compo-nents. 713-772-4653 or 713-726-9070.

BIC TWO -SPEED CASSETTE DECK. Any model Brenner,106 Woodgate, Rochester NY 14625

BOOK-BUILDING SPEAKER ENCLOSURES, by DavidWeems, Dalzell, 1729 Circo Del Cielo, El Cajon CA 92020

HEATHKIT AR -15 AM -FM radio receiver wanted. WilliamZiewacz, 101 Lancer, Johnstown, Pennsylvania, 15906.(814) 539-5689

I'LL BUY OR TRADE FOR CITATION'S 2, 11, 12, 14 &15, 17, 18, IN WORKING CONDITION. I'll also buy Cita-tion's 16, 16S, 16AS, 16A & 19 in any condition. Callcollect, 504-392-7443, or 504-866-8020, or write to DougWilson, 341 Willowbrook Drive, Gretna, Louisiana, 70063.

MCINTOSH, MARANTZ TUBE COMPONENTS, WesternElectric speakers, amps, etc. John Conrad 1178 BlackbirdSt. El Cajon, CA. 92020 (619) 449-9155

MCINTOSH-MARANTZ TUBE AMPS, PREAMPS-E.V.Patricians-JBL HartsfieldsiParagons-Klipschorns-Bo-zak Concert Grands and related equipment. Kuiluff Ent.,4331 Maxson Road, El Monte, CA 91732, (231) 444-7079

MCINTOSH, MARANTZ, QUAD, TUBE TYPE COMPO-NENTS. Western Electric Tubes, Amps, Consoles, Drivers,Tweeters, Horns, Speakers, Others. Thorens TD -124. Gar-rard 301. Altec 604C/E. Tannoy Monitor Speakers Tel: 213/576-2642 David Yo POB 832 Monterey Pk. Ca. 91754

MISCELLANEOUS

FIREWORKS: Largest selection available. For cataloguesend 505 to Fireworks, P.O. Box 792, Tiffin, Ohio 44883 orcall in Ohio 1-800-821-7901. Outside Ohio 1-800-821-2483.

FOR SALE-HiFi Stereo Mag-All back issues to #1. HighFidelity Mag-From 1953. Absolute Sound #1 to 28. ChicMag #1 to 25. Playboy #3 to 1980. Oui #1 to 48. BestOffers -212-465-4717

INSTRUCTION & EDUCATION

YOUR OWN RADIO STATION! Licensed, unlicensed,home, church, school, business. Low cost transmitter kits.Free information. Broadcasting, Box 130-N5, Paradise, CA95969

News from Apt Corporation Volume 3, Number 2

Apt Holman Preamplifier two $ 41 7 0(1

Moving Coil Cartridge CompatibilityIn this series, we will be discussing some of the areas of preamplifierperformance that vitally affect high-fidelity music systems.When moving coil cartridges were first introduced, they offered a significantadvantage over conventional moving -magnet types: substantially reduced highfrequency distortion. The previous moving magnet stylii resonate between 10 to15 kHz, and require a critical combination of mechanical damping in the stylusand electrical damping in the preamplifier to achieve flat audio frequencyresponse. (Regrettably, most preamplifiers do not provide the means tocompensate the electrical system precisely, resulting in sonic colorations.)While linear electrical damping is simply achieved with passive components,mechanical damping (typically supplied by an elastomer) is quite nonlinear,resulting in severe harmonic and IM distortion in the damping region atfrequencies above 3 kHz. Because many moving -coil cartridges resonate atultrasonic frequencies, they require far less damping in the audio band. Theonly consequence of a low mechanical damping design is an easily-compensatable frequency response rise from 10 to 20 kHz.Oddly enough, while lower distortion damping was exploited fully in the firstmoving coils, the rising high -frequency response was left uncompensated bymost pre -preamplifiers, with the unhappy results of unnatural sound,anomolous specifications, and, worst of all, new moving coil designs whichadded mechanical damping to flatten the response, but increase the distortion.Since overall system performance may be optimized by a moving coil cartridgestandard which specifies a uniform rising response and a corresponding(distortion free) electrical rolloff, the pre -preamplifier built into the Apt HolmanPreamplifier 2 allows for the precise compensation via inexpensive plug-incapacitors of any present, as well as future, moving coil cartridge.For more information, please contact your dealer or Apt Corporation. Thank you.Apt Corporation - P.O. Box 512 - Cambridge, Massachusettts 02139 USA -(617) 492-5145

Firm (Reader Service No.) Page

Acoustic Design Group (21) 27Adcom (8) 15ADS 2

Advent 32AIWA (22) 25Ariston (6) 38Audiophile Systems (37) 26BASF (17) 21

Bryston Manufacturing (14) 46Camels 6 & 7Carver Corp. 24Celestion (16) 48Chevrolet 70 & 71D'Ascanio Audio (34) 93dbx 35Delco/Bose 8

Denon (35) Cover IIIDesign Acoustics (32) 69Dolby Laboratories (9) 29Electro-Voice (18) 22IMF (7) 14International Hifi (28) 42International Preview Society 11

J & R Music World (29) 42JVC (11) 89KEF (38) 51

Kyocera (30) 39LaBelle 94Last Record & Stylus Care (29) 31

McIntosh (40) 47Maxell (27) 45Michelob 37Mitsubishi (31, 33) 18 & 19,

54 & 55Nagaoka (23) 49Nakamichi (2, 15) 5, 23NEC (1) Cover II & 1Ortofon (20) 12Phase Linear (19) 85Pontiac 43Quad (4) 4

Quality Connection (41, 42) .. 30, 33Revox (24) 47Salems 41

Sansui (3) 3

Sony (10) 52 & 53

Soundcraftsmen (30) 17

St. Pauli Girl 75

Studer-Revox (24) 47

Tandberg (5) 11

Technics (36) Cover IV

112 AUDIO/JUNE 1983

WHAT MAKES DENON CASSETTE DECKS UNCOMMONIS HOW MUCH THEY HAVE IN COMMON.

Denon las reier built mufti-thusEnidollar cassette

decks in order to sell unrelated inexpensive

machines. Instead, Delon has corcer tratec its full engineeringe*fort to produce rationality-pricec

cassette

decks that would impress serious music lavers with their sound -aTher than their features.low, the new DR -V14,

DR -M3 and DR-M2 cassettedecks exceec Denon's previous sor ic performance

le:rels, wl- le adding significant

technological and convenience features.

Denon's Tape Tension Servo SensorSystem nas been further refined to provide aubmatic sensing and

correction DI tape tersion for optimurr tape-to -head contact throughout the entire play cf mchcassette. A new

SF combirEticnhead extends

frecluerci responseto 23k1-1.7

(metal) with a 70dB SIN ra-ao (Dolby C). A new

computercontrolled si ent tape transport mechanism provides entirely quiet and sate tape handling. An

electronic ::,311 outer courrer using a aserdetector swstern automaticallyindicates -ape used and tape

remaining informationThe DR -M Cassette Decks feature Denon's Flat Twin direct capstan

drive; r on-slip clutchless, beltless,

reel drive mechanisms:Dolby B & C npise reduct on; direct-coupled

amplifier des gri, anc separate amp/

mechanical power sc polies.

The DR-M3 offers computer tape tuning hr bias anc sersitivity. The DR-M4 adds prograrrmable random

access, stopwatchfunction and dual -capstan transport.

Otherwise, all the Denon DE -M Series Cassette Decks

are principally the sane-eachoffering tte highest perforrranc.p

and quality at its price in the industry.

Denon prodacts share more than name alone.

Denon DR-1A1 Two-Head Cassette Deckmtli Do by C; Tape Tensicn Sewn. $299.

Cenon DR-M2 Three Head Cassette Deck

with Dolby C; WE Tension Servo; SF CorrbonatlorHead.

(Side pares opt onal) $399 -

Denon DR-Y3 Three Head Cassette D-ck

adds ComputerTuning Sy,--tp n.

Side panels crlioial) $499.

lab

)ENON

Denon DR-M4 Three Head ssett

adds Dual Capstan and tiousjc arch.

:Including s d a-1E1s) W99"roces to cornparson

NOMINAL

If" 9E4E.Sw9RIEVV, PF. Trf-

for the be."1-esuitson.the newDR.M &tries.

,r any eae-tedecks,dor thatmatter,

try new Orr.nonOX SWF, GICSettO Tape.

OLIN

pa 1414

many''''"

,DENONImagine what we'll do ne<t.

Denon An -erica,tic_ 27 Law Drive. Fairfield,

NJ 07006

Etter No 3E c,ri Reader Service Card

ittimmu iii IMMUI

A unique solution to a serious turntable problem:Technics introduces turntables with the P -Mount system.Unfortunatelypstandard turntable design has left toomuch to chance in terms of cartridge mountin4 andperformance.

Technics turntables with the patented P -Mounttonearm/cartridge system chanae all that. By -providingcomplete compatibility between tonearm and cartridgeto achieve the optimum tonearrr resonant frequegcythe level at which bass frequency interfftrcrimihimized. For the accuracy and Ifideli con n nturntables can deny you.

In addition, P -Mount is a plt.g-in 'rsteFri. You'll goutstanding performarl e without s uggling to insta Ithe cartridge. There's flpthing to wife. There's no Ion

healishelk T ere's rmorefum9overhang or stylus p ion. In adjanti -skating adjustments have b

Just plug any P7Mount cartridge into,,,a,Technicsstraight, low mass, high peilfcirmance tonearm, andtighten one locking screw. With Technics, your recordsare now virtually immune to -the groove we poorchannel sep4ration and distortion caused by impropercartrdge-to4onearrn mounting.

And Technics standard zed all key specificationswithinanufacturers of P -Mount cartridges: cartridgeweignt, external dimensions, connector shape, stylusposit on and more. So you have a wide range of '

cartridges to choose frOm.-he P-MoUnt plug-in cartridge system. Just one cif

the many advances you'll find in the new line ofto calibrate 'soph-4ticated Technics turntables. From belt -drive to

ition tracking and rec'-drive to quartz -locked.en virtually eliminat -he turntable revolution continues at Technics.