Maintained including replacement of 15 transistors, 13 capacitors, 12 lamps, and 2 volumes. The flagship model of the Macintosh power amplifier at the time. The heavyweight frame, fresh blue meter, and large speakers drive lightly, and the rich, rich tone are just perfect. The clarity of low frequency contours is the highest among all Mackins of all time. There are small scratches and dullness appropriate to the model year (Oikawa Tetsuji)
Maintenance information: 2026.4.6 maintained (GAIN vol failure → both channels replaced
Panel meter dismantling cleaning meter display lamp replacement driver board Tr deterioration, C deterioration, power stage Trxl deterioration → replacement each connector cleaning pattern re-solder mode switching SW dismantling cleaning operation check, offset, bias adjustment)
Accessories: power cable
Main specifications: 500W+500W (1000W when mono) equipped with power guard circuit W483 x D465 x H263 mm 60.3 kg