The Sansui AU-3300 is a quintessential representative of Sansui’s golden era in mid-1970s solid-state audio engineering. Celebrated for its musical, warm, tube-like tonal profile, this model features low-noise phono equalization, versatile tone controls, and robust discrete circuit layout. Because vintage amplifiers often suffer from aging capacitors and scratchy potentiometers, finding a unit that has undergone comprehensive maintenance—including fresh electrolytic capacitors and cleaned relays—is paramount for audiophiles seeking reliable performance, punchy bass response, and crystal-clear acoustic fidelity.
Graded in Fully Serviced / Restored Vintage Working Condition. This amplifier has undergone thorough professional maintenance: it was disassembled, cleaned, and updated with replacement electrolytic capacitors, transistors, and dual-transistors. All volume potentiometers, switches, and speaker relays have been cleaned and treated, delivering zero scratchy noise (gari-noise free). Micro-mixing and headphone outputs are fully verified, with burn-in testing executed smoothly over multiple weekly runs. Minor cosmetic surface wear consistent with its vintage era is present as pictured. Please carefully check the photos to confirm the condition.
| Brand / Model | Sansui AU-3300 |
| Type | Integrated Stereo Amplifier |
| Power Output | 12 watts per channel into 8Ω (Stereo) |
| Frequency Response | 20 Hz to 40 kHz |
| Total Harmonic Distortion (THD) | 0.5% |
| Maintenance Status | Fully Serviced, Recapped & Switches Cleaned |
| Operating Voltage | AC 100V 50/60Hz (Japan Specification) |
| Unit Dimensions (W x H x D) | Approx. 15.75 x 4.72 x 9.45 in (400 x 120 x 240 mm) |
| Net Unit Weight | Approx. 12.13 lbs (5.5 kg) |
| Country of Manufacture | Japan |
| Estimated Package Dimensions | Approx. 19.69 x 15.75 x 11.81 in (500 x 400 x 300 mm) |
| Gross Package Weight | Approx. 18.74 lbs (8.5 kg) |