All aging parts (22 Mitsubishi transistors, 52 capacitors, etc.) were replaced, SW/VOL was completely disassembled, and the contacts were repolished, and oxidation and sulfide prevention measures were taken to prevent oxidation and sulfide, and assembled! Sansui's large output power amplifier. While feeling the volume of the overflowing low frequencies, the crisp sound quality is exactly one of the best for jazz-making. The way the drums sound is a masterpiece, and it makes JAZZ sound firmly and comfortably. If you are looking for a low range of good old Sansui, this is one I definitely recommend. The appearance is also a good category from the perspective of the year (Oikawa Tetsuji)
Maintenance information: 2022.7.27 Maintenance completed (all board parts replacement and re-soldering, board cleaning. SW/VOL disassembly contacts are repolished, and oxidation/sulfide prevention grease is applied. Circuit adjustment, meter adjustment, input/output waveform confirmation, load test (1kHz sine wave, 8Ω load: 170W+170W, OK), sound output test.)
Accessories: none
Main specifications: 170+170W (8Ω), 340W (MONO/BTL connection/8Ω) damping factor 100 W460 × H178 × D400mm 22.6kg