Sansui AU 919 (1978-1980)

Market Value: $800-$1,500 depending on condition and restoration status
Collectibility Rating: 9/10

Name: Sansui AU 919
Brand: Sansui

Specifications

Feature	Specification
Year of Production	1978-1980
Power Specifications	100W per channel (8Ω, 20Hz-20kHz, 0.02% THD), 130W per channel (4Ω)
Impedance	4-16Ω
Sensitivity	Unknown
Key Features	Dual power supply (Dual Mono), DC amplifier design, Sansui's Diamond Differential circuit, FET input stage, massive toroidal transformer, dual power meters, speaker selector, tape monitor, phono MM/MC inputs, tone controls with defeat switch

Historical Significance

Flagship integrated amplifier from Sansui's X-balanced series, representing the pinnacle of their solid-state amplifier technology in the late 1970s, known for exceptional build quality and innovative circuit design

Sound Signature

Exceptionally clean, detailed, and neutral with tight bass control, wide soundstage, and excellent transient response, often described as having tube-like warmth with solid-state precision

Maintenance and Restoration Tips

DC offset adjustment required, aging capacitors (especially in power supply and driver boards), oxidized switches and potentiometers, protection relay contacts may need cleaning, original fuse resistors prone to failure