The sound - MuleSlow Services

Actual ,
unretouched
photo of an
oscillograph
test.
The oscillograph you
see is an actual photo
of a high-quality audio
system " playing" a
fingerprint.
You 're hearing fingerprints
now through
'your speaker system.
Instead of the sound
your precious discs
are capable of. And
no vacuum record
cleaner, brush-arm
or treated cloth will
remove them. None.
The sound
of your
fingerprint
But Discwasher TM - with new
do fluid - removes fingerpri nts
completely. Along with dust. And
manufacturi ng lubricants (added
to make pressing faster) that can
act like groove-blocking fi ngerprints.
All this cleaning without
pulling polymer stabilizers from
your vinyl discs.
Discwashernl. The only safe,
effective way to silence the
printed finger. At Audio
specialists world wide.
Feature Articles
18 Speaker Tests: THO/Richard Heyser
30 Build A Low TIM Amplifier/ W. Marshall Leach
76 Let's Be Fair to Our Favorite Composers/ Felix Arnstein
79 Of Rosie, Mame, Liza, Ellen and Rod/ Donald M. Spoto
Equipment Profiles
48 GTE Sylvania RS4744 Receiver/Leonard Feldman
54 Quintessence Equalizer 1/ Leonard Feldman
58 SAE Mk VII Tuner/Leonard Feldman
64 Dynaco PAT-5 Preamplifier/Bascom H. King
74 Pioneer PL-71 Turntable/George W. Tillett
Record & Tape Reviews
81 The Column/ Fred DeVan & Jon Tiven
94 Canby's Capsules/Edward Tatnall Canby
96 Classical Reviews/Edward Tatnall Canby
98 Jazz & Blues/Dan Morgenstern,
John Lissner, & Eric Henry
103 Theater Music/Donald M. Spoto
106 Tape & Turntable/Bert Whyte
Audio In General
4 Audioclinic/Joseph Giovanelli
6 Tape Guide/Herman Burstein
8 What's New In Audio
18 Audio ETC/ Edward Tatnall Canby
24 Behind The Scenes/Bert Whyte
28 Dear Editor:
88 Advertising Index
108 Classified Advertising
D'aow.aher, Inc.
909 University,
Columbia, Mo. 65201
EDITOR Eugene Pitts III
ASSOCIATE EDITOR Edward Tatnall Canby
ASSOCIATE EDITOR Ber t W h yte
ADVERTISING PRODUCTION Lynn. Lyons
PUBLISHER Jay L. Butler
MARKETING DIRECTOR Sanford L. Cahn
DESIGN Jan et Lee
CIRCULATION MANAGER Jea n D avis
Contributing Edi tors: He rman Burstei n, Martin C lifford, Fred De Van, Leonard Feldman, Martha
Sa nders G ilm ore, Jo seph Giovanell i, Richard C. Heyser, Bascom H. King, CG. McP roud, Dan
Morgenste rn, B.V. Pis ha, Donald M . Spoto, George W . Tillett, Jo n Tiven.
AUDIO (title registered U.S. Pat. Off.) is published monthly by North American Publishing Co., Irvin J. Borowsky,
President; Frank Nemeyer, and Jay L. Butler, Vice Presid ents; R. Kenneth Baxter, Vice Pre sid e nt/Production; Vic
Brody, Promotion Di rector; M ary C laffey, Circulation Directo r.
RATES-United States o nl y: 1 year for'$7.00, 2'years for $12.00, 3 years for $17.00; outside the U.S.: 1 year for $9.00, 2
years for $16.00, and 3 years for $23.00. Printed in U.S.A. at Columbus, Ohio. All rights reserved. Entire contents
copyrighted 1976 by North American Publish ing Co. Second class postage paid at Philadelphia, Pa . and additional
mailing office. Back issues, $2.00 each. World Library Congress number: ISSN 0004-752X . Dewey Decimal number :
621 .381 or 778.5.
REGIONAL SALES OFFICES: Jay L. Butler, Publisher and Sanford L. Cahn, Marketing Director, 41 East 42nd St., New
York, N.Y. 10017, tele phone (212) 687-8924.
Jay Martin, 2525 West 8th St. , Los Angeles, California, 90057, telephone (213) 385-2917.
REPRESENTATIVES: Continental Europe: John Ashcraft, 12 Bear St., Leicester-Square, London W.C. 2, te le p hone 930-
0525.
For Be nelux a nd Germany, W.J.M . Sa unders, Mgr., Herengracht 365. Amsterdam, Holland, telephone 24 .09.08.
Japan: Japan Printing News Co., Ltd ., No. 13.2 Chome Ginza Higasi, Chuo-ku, Tokyo , telephone 541-5795.
AUDIO Editorial and Publishing Offices,-401 No. Broad St., Ph iladelphia, Pa. 19108
Postmaster: Send Form 3579 to the above address
tH" •