I own a blaupunkt GTA 5000 amp. The problem that I am experiencing withit is that one of the terminals that go out to the speakers is not working. I bought this amp second hand over a year ago. I have recently changed the configuration of the outputs to find that the -ve on ch5 isn't working. What would be the cause of this and how would I fix it?
Thanks
Chris

sounds like a dry joint. like where the terminal is soldered to the circuit board it has cracked or not joined properly. Open up the amp and have a look. it if is simply cracked, grab a soldering iron and fix it up.