Sansui SR 525 Brochure

Page 1

SANSUISBEZE

DIRECT-DRIVE ELECTRONIC TRANSCRIPTION TURNTABLE

Sansui engineers and designers work-
ing on the SR-525 made no claims or
promises until they were sure of their
results. They knew they were on the
trail of a significant breakthrough in
turntable excellence. And they were
right. Now that the new direct-drive
sR-525 is ready for marketing, their
secrets can be revealed:

One, they have refined the rotor-posi~
tion sensor mechanism in combination
with a 20-pole. 30-slot brushless DC
servomotor with a saturable core to
perfect the most accurate. most
silently running direct-drive system the
industry has ever seen.

Two. they have lowered wow and
flutter to a negligible 0.03% and
boosted SJN to a high 64dB with the
use of a mirror-finished spindle and
sleeve combination.

Three, they have used the finest .
Sansui S-shaped tonearm, incorpora-

{tion a special resonance-absorber

[(Pat. Pend.) for it to totally eliminate
resonance, and used a knife-edge
support system to ensure the lowest
friction performance they've ever
achieved.

And finally. the SR-525 is equipped

with a solid. die-cast aluminum head-

shell, a stroboscopic pitch control

system. electronic speedAchange cont-
rols and a number of other advanced
features to further guarantee maximum
performance excellence and ease of
operation. '

The biggest secret of the direct-
drive SR-525 is how Sansui has held its
price to and even below the level of
comparable belt-drive models. And
thats one secret they're not sharing.
*No cartridge is provided with the

SR-525 models sold in the U.S.A.,
Europe and Canada.

Sans-rd.

Page 2

SPECIFICATIONS

TYPE .............. Manual single record playing
transcription turntable

MOTOR ... ..... 20 pole, 30 slot DC brushless type

DRIVE ,,,,,,,,,,,,,, Direct spindle drive, electronic
ally servo-controlled

PLATTER ............ 310mm,12/4' aluminum die-cast
weighing 1.4kg,"3.1 lbs

PERFORMANCE

WOW & FLUTTER r .less than 0.03% (WRMS)

SIGNAL TO NOISE RATIO

better than 64dB (IEC-B)

RUMBLE --------- better than -72dB (DIN~B)
RECORD SPEEDS ....33y3, 45rpm
FINE SPEED ADJUSTMENT
.............. 13.5% (separate knobs 33% and

4Srpm)

.llluminated stroboscope with

marking on the platter periphery

TONEARM .......... Statically-balanced S-shaped
resonance-free tonearm with
knife-edge support, adjustable

SPEED CONTROL ..,

height
LENGTH .......... 220mm 8% pivot to stylus tip
OVERHANG ...... 17.5mm,%

FRICTION (10mm deflection)

.............. 20 miligrams vertical,

100 miligrams horizontal

MINIMUM TRACKING FORCE
SETTING .......... 0.5 grams
ACCEPTABLE CARTRIDGE WEIGHT. ,4 I0 11 grams
COMPENSATION Bias & Lateral Balance
CUEING .......... Separate lever at arm base

CARTRIDGE ........ SV-27A (For SIR-525 sold outside
the USA, Europe & Canada)
TYPE .............. Moving magnet
FREQUENCY RESPONSE
.............. 10 to 23,000Hz

CHANNEL SEPARATION
.............. 25dB (1,000Hz)
OUTPUT VOLTAGE 3.5mV per channel (1,000Hz
50mm/sec.)
OPTIMUM LOAD ..47,000 ohms
TRACKING FORCE .15 to 2.0 grams
STYLUS ............ 5N-27 0.5 mil diamond spherical
CABINETRY .......... 40mm-thick chip-board base
with anti-howling insulators and
hinged free-stop tinted cover
POWER REQUIRMENTSi .120V, GOHZ (for the USA &
Canada) .
100V, 120V, 220V, 240V, 50/sz
POWER CONSUMPTION. .5 watts (rated)
DIMENSIONS .......... 469mm (18%) W
150mm (5525') H
375mm (14%') D

WEIGHT .............. 9.5kg (20.9 lbs) Net
11,2kg (24.6Ibs) Packed
ACCESSORIES .......... 45rpm record spindle adaptor,

Low capacitance (40 pF/m)
output signal cable, Cartridge
mounting gauge

Dutln and spear-mum «mm to am... without not... Iar improve-menu

SANSUI ELECTRIC CO LTD 14-1. 2~CHOME, IZUMI, SUGINAMI-KU, TOKYO 168, JAPAN TELEPHONE: 323-} l l l/TELEX: 232-2016
SANSUI ELECTRONICS CORPORATION 5511 QUEENS BLVD, WOODSIDE. NEW YORK 11377, U.S.A.rTELEX: NEW VORK 422633 SEC Ul

SANSUI AUDIO EUROPE SA. DIACEM BUILDING. VESTINGSTRAAT 53-55. 2000 ANTWERP, BELGIUM, TELEX: ANTWERP 33535

Sans-111°.

PrintedthlnnntlbosaMzi -