I mentioned a couple of weeks ago I was having a hard time with my Ampeg BA115. It was inamitent signal break up and distortion. I took it to a authorized repair shop and was told it was dirty pots. About a week ago I was playing with harmonics and it started to distort and the signal dropped out and went much higher then what it started. I'm just pissed that it wasnt fixed and have no idea what to do now.