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Sansui AU-3900

Integrated Stereo Amplifier (1976-77)

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Sansui AU-3900


The Sansui AU 3900 is an integrated stereo amplifier with the same specifications and same low distortion as the AU4900, but slightly reduced power: 25 watts per channel, minimum RMS, both channels driven at 1000Hz.

Features include:

CR type tone control circuit with click stops.

Audio muting, high and low filters.

Control two sets of speaker systems, or both at once.

Mic mixing facility, plus full connections for auxiliary sources.


Power output: 22 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 40kHz

Total harmonic distortion: 0.15%

Damping factor: 50

Signal to noise ratio: 90dB (line)

Channel separation: 60dB (MM)

Dimensions: 400 x 120 x 240mm

Weight: 7kg

Year: 1976


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This website is not affiliated with or sponsored by Sansui. To purchase AU-3900 spares or accessories, please contact the company via their website or visit an authorised retailer.