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Sansui A-900

DC Servo Integrated Amplifier (1982-85)

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Sansui A-900


Power output: 70 watts per channel into 8Ω (stereo)

Frequency response: 5Hz to 60kHz

Total harmonic distortion: 0.05%

Input sensitivity: 2.5mV (MM), 150mV (line)

Signal to noise ratio: 72dB (MM), 95dB (line)

Output: 130mV (line)

Speaker load impedance: 8Ω (minimum)

Dimensions: 430 x 112 x 250mm

Weight: 5.9kg


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re: A-900

I've just dug this old girl out of storage after about 25 years. It appears to work but it has a horrible 60Hz hum in the audio output through both speakers. Could this be bad/dried out electrolytic filter capacitors in the power supply? If not, anywhere else I could look?


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