A few months ago, I refurbished a Dynaco Stereo 120 audio amplifier for my studio, replacing a Stereo 80 amp that had been in service for years. There wasn’t anything wrong with the 80, but I wanted the increased power and the sound improvements that the 120 upgrades had provided in the studio.
I am listening to a classic solid-state amp from the 70’s. Just a couple of weeks ago, it arrived from an eBay auction in rough and partially-working condition.