Sansui QA 7700 (1976-1978)
Specifications
| Feature | Specification |
| Year of Production | 1976-1978 |
| Power Specifications | 50W per channel (8Ω), stereo |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | DC power amplifier design, dual power supplies, FET differential amplifier input, direct-coupled OCL circuitry, loudness contour switch, high/low filters, pre-out/main-in jacks |
Historical Significance
Part of Sansui's high-quality integrated amplifier series from their golden era, known for advanced engineering and build quality that competed with more expensive separates
Sound Signature
Clean, detailed, and neutral with excellent transient response, tight bass control, and smooth highs characteristic of Sansui's DC amplifier designs
Maintenance and Restoration Tips
Aging electrolytic capacitors, dirty controls and switches, thermal drift in DC offset requiring adjustment, occasional relay issues
Collectibility and Market Value
- Market Value: $300-$600 depending on condition and restoration status
- Collectibility Rating: 7/10
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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)