Maintained! It is a mono amplifier with excellent characteristics of Class A amplifiers, with uninterrupted bass coming out as if it were groaning forward and forward. It has a thick, thick sound that is rare for Yamaha, and it drives a variety of speakers both domestically and internationally. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.9.29 maintenance completed (replacement of 50 decoupling capacitors, correction of bus bar polishing, replacement of 4 output relays, replacement of speaker terminals, expansion of output elements, etc., wiring styling correction, bias and offset check, output sound check)
Accessories: instruction manual (copy)
Main specifications: pure A grade 100W mono W271 x H230 x D488 mm 18.4 kg