Sansui AU 9900 Brochure

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Sansuis AUITU Series of stereo in-
tegrated amplifiers and stereo FM/AM
tuners has received the highest praise,
and has gathered the most devoted fol-
lowing of audiophiles, of any series of
high fidelity components we have ever
manufactured. Since its introduction
more than a decade ago, the series has
always represented not only the latest
and most advanced technical develop-
ments and applications in the industry
but also the finest in user-oriented con-
veniences and design innovations.

In this brochure we are proud to in-
troduce the latest in the Sansui AU/TU
Series. They are the most powerful,
most accurate, most dependable stereo
components yet to join the series, and
they represent at the very highest pro-
fessional level the famed Sansui tonal
quality standards in every respect.

A020000

INTEGRATED STEREO
AMPLIFIER

HIGH-OUTPUT, LOW-DISTORTION
CIRCUITRY

The AU-ZOOOO is the most powerful
integrated amplifier in Sansui's dis-
tinguished AU Series. Its constant and
reliable power output is a cotinuous 170
watts, min. RMS, per channel, both
channels driven into 8 ohms, over a 20
Hz to 20kHz bandwidth with no more
than 0.05% total harmonic distortion.

POWERFUL TRIPLE PUSH-PULL
OUTPUT CIRCUIT DESIGN

No less than six hand-selected power
transistors are used in each output chan-
nel. The triple push-pull circuitry here is
guaranteed to deliver its rated output at
the lowest possible distortion» power to
spare, always.

DEPENDABLE POWER SUPPLY
Particularly close attention is paid
to the power supply design to ensure de-
pendability and stability. The circuit is
the plus-minus symmetrical voltage type,
coupling a low-magnetic-Ieakage toroidal
transformer with extra large capacitors.

DUAL-AMPLIFIER PHONO EQUALIZER
WITH LOW-NOISE TRANSISTORS

Dynamic response is improved by
the 8-transistor equalizer with differ-
ential amplifiers at its initial stages. Dis-
tortion is totally minimized, and the dual
amplifier design-a CR type for highs and
a NF type for lows-achieves very ac-
curate RIAA equalization.

TRIPLE TONE CONTROLS

The AU-20000 features Sansui's ex-
clusive Triple Tone Control design, con-
trolled by a CR type circuit. A wide dy-
namic range and excellent transient re-
sponse are assured by the use of a plus-

minus voltage supply.

COMPLETE TRIPLE PROTECTION
CIRCUITS

Damage and breakdowns are avoid-
ed entirely with the use of a temperature
sensing circuit, a DC voltage detection
circuit and an ASO (Area of Safety Oper-
ation) detection circuit. Shorts in speak-
er terminals or leads, or power/tempera-
ture emergencies instantly activate these
circuits for complete protection.

SELECTABLE PHONO SENSITIVITY/
IMPEDANCE

The phono input circuitry in the AU-
20000 incorporates two special selec-
tors, each with three positions, to allow
the selection of the correct sensitivity
and impedance to obtain optimum results
with any cartridge in use.

VERSATILE TAPE MONITOR CIRCUIT

The AU-20000 accepts up to thl .
stereo tape decks and provides individual
monitoring and deck-to-deck dubbing for
each. It also permits source monitoring
during the dubbing process.

OTHER USER-ORIENTED FEATURES

Provided are: Tone Defeat Switch;
3-Step Audio Muting Swich; 2-Step Low/
High Filters; Mode Switch; Meter Sensi-
tivity Switch, and Large, Self-Illuminated
Level Meters.