Look into the back of the amp with a flashlight and make sure all the wiring is on BOTH speakers, sometimes they share a common ground wire and if it has come of one might worj but they other won't if thats not the problem check the wiring to all the control knobs and please DO IT WITH THE AMP UNPLUGGED!!!!!!!!!!
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Look into the back of the amp with a flashlight and make sure all the wiring is on BOTH speakers, sometimes they share a common ground wire and if it has come of one might worj but they other won't if thats not the problem check the wiring to all the control knobs and please DO IT WITH THE AMP UNPLUGGED!!!!!!!!!!