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Sansui AU-999

Sansui AU-999

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Sansui AU-999

Solid State Integrated Stereo Amplifier (1970-72)

The AU-999 is the most advanced professional control amplifier ever manufactured by Sansui.

Designed specifically for the ardent audiophile, it features the refined dull black panels common to all AU series professional control amplifiers from Sansui.

The pre-amplifier section is constructed of carefully selected low-noise PNP silicon transistors, while the power amplifier section features direct-coupled circuits specially developed with the improvement of tonal quality in mind.

Together, they permit the AU-999 to deliver a full 180 watts (4 ohms) in music power output with unprecedented tone quality.

The AU-999 is lavishly endowed with accessory circuits.

These include a tone selector circuit, an improved form of the triple tone control circuit that offers a choice in selecting the critical frequencies of tone control; a speaker selector which permits connecting three sets of speaker systems; a balance check switch which simplifies the job of adjusting for optimum balance of the right and left channel sound volumes; facilities to connect two phonographs and two tape decks, and a tape reprint circuit.

Special provisions have also been made to permit the amplifier to be built up into an electronic crossover stereo system and permit comparing such a system with a standard stereo set-up.
Specifications

Power output: 50 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 70kHz

Total harmonic distortion: 0.4%

Damping factor: 45

Input sensitivity: 3mV (mic), 2mV (MM), 200mV (DIN), 200mV (line)

Signal to noise ratio: 80dB (mic), 80dB (MM), 85dB (line)

Output: 200mV (line), 30mV (DIN)

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 41 x transistors, 16 x diodes, 2 x triac

Dimensions: 18-1/8 x 6-1/8 x 12-1/2 inches

Weight: 38.5lbs

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