Sansui 7900ZDB (1978-1979)
Specifications
| Feature | Specification |
| Year of Production | 1978-1979 |
| Power Specifications | 60W per channel (8Ω, 20Hz-20kHz, 0.1% THD), 70W per channel (4Ω) |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | DC power amplifier design, dual power transformers, quartz PLL synthesized tuning, 4-gang tuning capacitor, Dolby FM, 3-position loudness contour, tape dubbing, pre-out/main-in jacks |
Historical Significance
Part of Sansui's highly-regarded 'ZDB' series representing peak analog receiver technology before digital took over, known for exceptional build quality and advanced features for its time
Sound Signature
Clean, detailed, and powerful with excellent bass control, neutral tonal balance with slight warmth, highly transparent and dynamic presentation
Maintenance and Restoration Tips
Aging electrolytic capacitors, dirty switches and potentiometers, lamp replacement for dial and meters, occasional issues with the quartz tuning system, power supply board recapping recommended
Collectibility and Market Value
- Market Value: $400-$800 depending on condition and cosmetic appearance
- Collectibility Rating: 7/10
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