Sansui AU 9500 (1973-1975)
Specifications
| Feature | Specification |
| Year of Production | 1973-1975 |
| Power Specifications | 85W per channel (8Ω), 100W per channel (4Ω), stereo |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | Dual power supply, DC-coupled amplifier design, dual mono construction, phono equalizer with MC/MM compatibility, tone defeat switch, loudness control, pre-out/main-in jacks, massive heat sinks |
Historical Significance
Top-of-the-line integrated amplifier from Sansui's golden era, representing peak Japanese solid-state engineering with exceptional build quality and performance that rivaled separate components
Sound Signature
Clean, detailed, powerful, neutral with excellent bass control, wide soundstage, and low distortion - considered one of the best sounding vintage solid-state amplifiers
Maintenance and Restoration Tips
Aging capacitors, particularly in power supply; DC offset adjustment; noisy controls and switches; thermal paste replacement on output transistors
Collectibility and Market Value
- Market Value: $800-$1,500 depending on condition and restoration status
- Collectibility Rating: 9/10
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
Service Manuals & Schematics
- Manual (1973) — archive.org
- Manual (1973) — 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)