So, i was playing bass through my peavey combo 300, when suddenly the output dropped to a really low volume. Increasing the output volume on the amp just created distortion rather than an increase in output. Then it stopped making a sound altogether. The preamp seems fine when using the preamp out jack, but there is no amp output at all.
I confess amplification is by far my weakest bass subject, havn't got a clue. Any ideas what has happened?