Hi! I am an unhappy owner of an Ampeg SVT4 pro head. So far, I had to change the whole board inside because the temp circuit would fail for no reason. Now, I got a new problem. When I play, the sound will cut out, but if I strike my bass strings hard, sound will come back instantly (and the problem is the amp because it happens even if I'm plugged directly in the amp and my bass plays perfectly fine in another amp I own) Like if when a peak signal is received, the amp comes back to life? I dunno.. Anyone has run into the same problem?