ursinus
Well-known member
About a month ago, my MKIII started loosing its volume when it would warm up. I changed the preamp tubes and the problem went away. On Friday, the family was gone so I shook the walls of my garage for a few hours through a Theile and a LSC 2x12 with Cannabis Rex's. I love this amp! Anyway, after about 2 1/2 hours, the volume would go down to a whisper and then come back up again. I haven't had time to open her up yet and probably won't for a few days as I have three customer's amps I'm working on at the moment. Anyone have any ideas what to look for? My first thought is that it is PI circuit because the problem occurs in all the channels. Any thoughts would be appreciated.
Thanks.....
Thanks.....