Two areas, and sometimes both are involved. A bad tube. You can try changing left and right channel tubes. The other possible problem (and "crackle" sounds like this could very well be it) would be a capacitor going bad. That one is a little trickier to trouble shoot, and not being very familiar with that particular amp I wouldn't know where to tell you to start looking. Sometimes, it's a combination of the two, which can make trouble shooting very difficult.
8 responses Add your response