Hey there everyone......im having trouble with my amp. I have a Crate GFX-212 and has worked fine until now.....i turn it on and theres this buzz thats coming from the speakers..i have checked the fuse and its fine. u can here output from the guitar when u strum but its very faded. it has digital effects and when i lower the tone of them the buzz is not as loud but very much present.

Does anyone know whats up with my piece of crap. could it be faulty electronics. any help of info would be appreciated. Thanks