Hi. Recently my Spider II 75 amp head has not been making any sound when the guitar is plugged in. I have checked the cab with another head and the cab is working fine. I've also ruled out the possiblity of it being a problem with leads/guitars etc.
The lights on the head work fine and it plays music when i plug an mp3 player into the mp3 input, however when i plug the guitar in it wont make any sound. I've taken the head part apart and there doesnt seem to be any obvious problems inside. Anyone have any ideas what this could be?