Sansui BA 9000 (1977-1979)
Specifications
| Feature | Specification |
| Year of Production | 1977-1979 |
| Power Specifications | 160W per channel into 8Ω, 200W per channel into 4Ω (stereo) |
| Impedance | 4-16Ω |
| Sensitivity | 1.1V for 160W output |
| Key Features | Dual mono design, massive toroidal transformer, separate power supplies per channel, DC-coupled amplifier circuit, dual VU meters, balanced XLR inputs, speaker protection relay, massive heat sinks |
Historical Significance
Flagship power amplifier from Sansui's golden era, represented the pinnacle of Japanese solid-state amplifier engineering in the late 1970s, known for exceptional build quality and power delivery
Sound Signature
Exceptionally clean, powerful, and transparent with tight bass control, detailed midrange, and extended highs, minimal coloration with excellent dynamic range
Maintenance and Restoration Tips
Aging electrolytic capacitors, relay contact cleaning, thermal paste deterioration on output transistors, occasional driver board issues, bulb replacement for VU meters
Collectibility and Market Value
- Market Value: $1,500-$3,000 depending on condition and restoration status
- Collectibility Rating: 9/10
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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)