Description
We just came across a beautiful Sansui AU-777A amplifier (with original manual) as well as a matching Sansui TU-777A tuner (sold separately/link coming).
Sansui AU-777A Vintage Integrated Amplifier — Excellent Condition
Overview:
The Sansui AU-777A is a revered solid-state integrated amplifier from the golden age of hi-fi audio. Produced in the early 1970s, this Japanese-built unit is known for its warm, detailed sound and exceptional build quality. A true collector’s piece, the AU-777A is a sonic powerhouse that pairs beautifully with vintage and modern speakers alike.
Specifications:
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Model: Sansui AU-777A
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Manufactured: Japan, circa 1970-1972
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Power Output:
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30 watts per channel @ 8 ohms (RMS, both channels driven)
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Total Harmonic Distortion: Less than 0.5%
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Frequency Response: 20 Hz – 20 kHz ±1 dB
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Input Sensitivity:
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Phono 1: 2.5 mV
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Phono 2: 2.5 mV
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Tuner/Aux: 200 mV
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Signal-to-Noise Ratio:
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Phono: 65 dB
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Aux: 80 dB
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Inputs: Phono 1 & 2, Tuner, Aux, Tape Monitor
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Outputs: Speaker A & B, Tape Out
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Speaker Impedance Compatibility: 4 – 16 ohms
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Dimensions (W x H x D): 430 x 140 x 330 mm
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Weight: Approx. 12 kg (26.5 lbs)
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Notable Features:
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Transformer-coupled output stage
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Dual phono inputs for turntable flexibility
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High-quality tone controls with defeat switch
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Solid, brushed aluminum faceplate with wood sleeve
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Hand-wired internal construction
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Condition:
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Cosmetic: Excellent – minimal wear, wood case in great shape
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Functional: Fully tested, working 100%
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Maintenance: Cleaned controls, no crackle or hum. Ready for plug-and-play use.
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