Sansui AU 777 (1967-1969)

Market Value: $600-$1200 depending on condition and restoration status
Collectibility Rating: 8/10

Name: Sansui AU 777
Brand: Sansui

Specifications

Feature	Specification
Year of Production	1967-1969
Power Specifications	25W per channel (8Ω, RMS), stereo
Impedance	4-16Ω
Sensitivity	Unknown
Key Features	Dual power transformers, fully discrete circuitry, direct-coupled output stage, Sansui's first DC amplifier design, separate power supplies for each channel, phono stage with MM/MC compatibility, tone controls, loudness switch

Historical Significance

Sansui's first DC-coupled amplifier, pioneering design that influenced future amplifier technology, considered one of the first true high-fidelity integrated amplifiers, marked Sansui's transition into high-end audio

Sound Signature

Warm, detailed, transparent, excellent bass control, smooth midrange, extended highs without harshness, musical and engaging presentation

Maintenance and Restoration Tips

Aging electrolytic capacitors, worn potentiometers and switches requiring cleaning, occasional transistor failure in driver stages, power supply recapping recommended for reliability