Alright guys, i have a backline 600 head, and its got a problem. It's got a distorted channel and a clean channel. But something happened to it, what I don't know, and now it believes that the distortion channel is constantly on, even when the channel switch button is changed from on to off. So do you know what I can do to fix it, or should i take it to a pro?
Take it to be replaced under warranty if it's still under it. If not you have to send it to GK to be fixed. It's a apparently a common problem where some excess flux or something melts (I can't remember exactly, search talkbass), and after it gets cleaned off once it won't happen again (again second hand knowledge, but trustworthy).