Sansui BA 5000 (1974-1977)
Specifications
| Feature | Specification |
| Year of Production | 1974-1977 |
| Power Specifications | 150W per channel (8Ω), 250W per channel (4Ω), stereo power amplifier |
| Impedance | 4-16Ω |
| Sensitivity | 1.5V for full output |
| Key Features | Dual mono construction, fully complementary OCL circuitry, massive toroidal power transformer, separate power supplies for each channel, DC servo circuitry, massive heat sinks, professional-grade binding posts |
Historical Significance
Flagship power amplifier from Sansui's golden era, represented the pinnacle of Japanese amplifier engineering in the 1970s, one of the most powerful and well-built amplifiers of its time, set standards for build quality and performance
Sound Signature
Exceptionally clean, powerful and transparent sound, immense power reserves, tight bass control, detailed midrange, extended highs without harshness, neutral to slightly warm character
Maintenance and Restoration Tips
Aging electrolytic capacitors, DC offset adjustment may be needed, thermal paste drying out on output transistors, rare driver transistor failures, heavy weight requires careful handling
Collectibility and Market Value
- Market Value: $1500-$3000 depending on condition and cosmetic appearance
- Collectibility Rating: 9/10
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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)