C20（前期） McIntosh - HiFi-Do McIntosh/JBL/audio-technica/Jeff Rowland/Accuphase

C20（前期）

Manufacture:McIntosh

Price: JPY 452,727

26-50143-13352-00

Control amplifiers (tube type)

U.S.A 1959 made

Shop: Akihabara shop

Arrival: 2026-06-08 20:11:25

The initial model C20 underwent maintenance due to poor contact with the main volume shaft in 2025/12, and a major overhaul in 2023. With the thick, soft touch unique to Old Mackin, it vividly depicts music in the mid to high range, which has a different luster from C22. There are small scratches, dullness, etc. appropriate for the model year*For about 30 seconds after the power is turned on, chipping will appear due to the effects of charging and discharging the capacitor. Serial 1L377 (Fujisawa Yukishi) Maintenance information: 2025.12.10 Maintained (main volume shaft contact defect repair (*any model will crack for about 30 seconds after turning on the power supply due to the effects of capacitor charging and discharging) Lamp defect replacement. Input ground reinforcement treatment) 2025.7.3 Maintained (vacuum tube 12AU7 noise replacement. 6 1/2W noise replacements Vacuum tube socket and RCA jack re-caulking repair*Other operation checked with AC 100 to 117 V) 2023.3.4 maintained (starting current inspection and PSE inspection. The main volume is scarce and can be exchanged. Replace 2 40/20/20/20 μF block capacitors and other defects and deterioration. Replace 2 1000 μF electrolytic capacitors for the original circuit. Replace the 0.1 μF film capacitors with 33 other oil capacitors and ceramic capacitors. Replace 4 50 μF electrolytic capacitors with other Sprague ones. Vacuum tube 12AU7 noise replacement. Lamp deterioration replacement. RCA jack and vacuum tube socket caulking repair*Other operation has been checked with AC 100 to 117 V) Accessories: copy of instruction manual Main specifications: Vacuum tube used 6x4, 12AX7, 12AU7 dimensions W390 x H146 x D315 mm weight 8.3 kg

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