Maintenance has been carried out with attention to details such as main volume, switch dismantling and polishing, relay replacement, etc. A heavyweight high performance premain amplifier that is above its class. The sound quality is tight throughout the entire range, but the characters are neutral without getting too stiff. This is truly a high cost performance model from Sony's golden age. PHONO is also MM/MC compatible, making it great for analog users. There is a feeling of use on the exterior. Serial 202887 (Murakoshi Yoichi)
Maintenance information: 2026.5.11 maintained (main volume dismantling and cleaning, output relay replacement, ground terminal reinforcement, switch disassembly and polishing (input selector, adapter, speaker, muting, subsonic, source direct, reckout, cartridge selector, mode, tone, turnover), main solder repair, pin jack polishing, interior and exterior inspection cleaning, bias adjustment, operation confirmation)
Accessories: instruction manual (copy)
Main specifications: 120W+120W (8Ω) output bandwidth 10 to 100000 Hz damping factor 100 W 470 x H166 x D435 mm 24.5 kg