Sansui AU X11 (1980-1982)
Specifications
| Feature | Specification |
| Year of Production | 1980-1982 |
| Power Specifications | 120W per channel (8Ω), 160W per channel (4Ω), stereo |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | Dual Mono construction, DC amplifier design, Super Feedforward error correction circuitry, independent power supplies per channel, gold-plated terminals, toroidal transformer, direct-coupled output, advanced protection circuits |
Historical Significance
Flagship integrated amplifier from Sansui's X-Balanced series, representing the pinnacle of their DC amplifier technology and Super Feedforward innovation, competing with the best high-end amplifiers of its era
Sound Signature
Exceptionally clean, detailed, and transparent with tight bass control, neutral tonal balance, wide soundstage, and excellent dynamics - considered a reference-class amplifier
Maintenance and Restoration Tips
Aging electrolytic capacitors, particularly in power supply; relay contacts may need cleaning; thermal paste deterioration on output transistors; complex circuitry makes repairs challenging for inexperienced technicians
Collectibility and Market Value
- Market Value: $800-$1,500 depending on condition and originality
- Collectibility Rating: 8/10
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Service Manuals & Schematics
- Service Manual — archive.org
Related Models
- Sansui PM C100 (Unknown)
- Sansui 6060 (1975-1977)
- Sansui 551 (1973-1975)
- Sansui AU 555 (1968-1971)
- Sansui CA 3000 (1974-1977)
- Akai AM-2850 (1975)
- Akai AP-206 (1975)
- Nakamichi BX-1 (1985)
- Acoustic Research research-ar-17 (1978)
- Acoustic Research AR-19 (1994)