Maintenance has been completed for switches, volume disassembly, contact polishing, etc. Maintained! The L-550X is the successor to the L-550, a masterpiece premain amplifier with pure Class A operation. Compared to the initial model, there are no changes other than the addition of an input terminal, and it plays back bright and spacious lacktones. MC compatible, which is great for analog users. There is a feeling of use on the exterior, such as scratches and dullness over time. Serial 4401108 (Yamato Yuki)
Maintenance information: 2025.12.11 Maintained (switch, volume disassembly contact polishing output relay contact defect replacement, each circuit board soldering, all correction, main volume disassembly contact polishing, input/output pin jack polish)
Accessories: copy of instruction manual
Main specifications: 50W+50W (8Ω) pre-main separation function W453 x H174 x D470 mm 20 kg