Sansui 350A (1968-1970)
Specifications
| Feature | Specification |
| Year of Production | 1968-1970 |
| Power Specifications | 20W per channel (8Ω), stereo |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | Solid-state design, dual power transformers, independent power supplies for each channel, dual tone controls, tape monitor, phono input, front panel headphone jack |
Historical Significance
When Sansui launched the 350A in 1968, they weren’t just releasing another amplifier—they were staking a claim in the future of high-fidelity sound. As part of their early solid-state lineup, the 350A marked a pivotal shift from vacuum tubes to transistors, delivering reliability without sacrificing the warmth audiophiles loved. It helped cement Sansui’s reputation for engineering excellence during a transformative era in audio technology.
Sound Signature
Don’t let its transistor heart fool you—the 350A sings with a rich, tube-like character that still turns heads today. Its sound is warm and smooth, with a lush midrange that brings vocals and acoustic instruments to life. Despite its modest 20 watts per channel, it drives speakers with authority and musicality, offering a listening experience that feels far more alive than its specs might suggest.
Maintenance and Restoration Tips
After more than half a century, these amps demand attention—but they reward the effort. Aging electrolytic capacitors are the first thing to address; they often dry out and cause hum or distortion. Pots and switches gather oxidation over time, so a careful cleaning with contact cleaner can restore crisp operation. Keep an eye on the transistors and power supply, especially if the unit has been dormant. A full recap and service bring the 350A back to its original glory, often unlocking even better performance than it had in its youth.
Collectibility and Market Value
- Market Value: $150-$300 depending on condition and restoration status
- Collectibility Rating: 6/10
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
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)