a-s501

Hey all! I know that this and its newer sibling the A-S501 are very popular amps, so I figured somebody here might be able to help point me in the right direction. I have been happily using my Craigslist-find $100 Yammy A-S500 with my Wharfedale Lintons for a little while now, and could not be...

Anyone interested in looking inside Yamaha amps? I have a bunch in my collection, most of them need repair, all of them have to be opened eventually for dusting. I'll start with some pictures i made inside a A-S1000 that i bought for 500€ in mint condition. This one weighs 25kg, it's a serious...