100V specification. Both GAIN VOL channels have been dismantled, cleaned, and maintained by replacing capacitors, diodes, etc.! A masterpiece transistor type power amplifier from McKinn's heyday. The powerful, rich, and thick tone is a popular gem among jazz fans of yesteryear. The sound combined with JBL vintage speakers is exceptional. On the exterior, the meter panel is slightly discolored, has small scratches and dullness, and there is a feeling of use (Katsuji Hiura)
Maintenance information: 2026.4.17 maintenance completed (GAIN VOL both channel dismantling and cleaning, meter SW cleaning, meter board, driver board, power supply board C, diode, lamp replacement. (Power stage TR status OK, SP relay contact cleaning, panel grip correction, meter section cleaning.)
Accessories: instruction manual
Main specifications: 200W+200W (1/2/4/8Ω) input sensitivity 0.75/2.5V W411 × H181 × D368 mm 38.6 kg