Sansui AU 717 (1977-1979)
Specifications
| Feature | Specification |
| Year of Production | 1977-1979 |
| Power Specifications | 85W per channel into 8Ω (stereo), 170W into 8Ω (mono bridged) |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | Dual power supply, DC-coupled amplifier design, direct-coupled OCL circuitry, dual power meters, phono stage with MC/MM capability, tone defeat switch, pre-out/main-in jacks |
Historical Significance
Flagship integrated amplifier from Sansui's highly regarded 'X-Balanced' series, representing peak Japanese solid-state engineering from the late 1970s, known for exceptional build quality and sonic performance
Sound Signature
Neutral, detailed, and powerful with excellent bass control, clean highs, and a wide soundstage - considered one of the most accurate and transparent amplifiers of its era
Maintenance and Restoration Tips
Fusible resistors prone to failure, aging electrolytic capacitors, oxidized switches and potentiometers requiring cleaning, occasional relay issues, recommended recapping for optimal performance
Collectibility and Market Value
- Market Value: $600-$1200 depending on condition and restoration status
- 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)