i have a concept amp, and i was using it bridged to power to JL w-0 12's. Then one day it stopped working, the power light is on green which means its ok, so i unbridged them and hooked them up normally, they worked fine until a day later, when it stopped workin agagin (no sound), so are my outputs blown? or is there something else wrong. Anyone with any advice would help. thanx ALOT!! Oh and i also unhooked the amp and hooked up a different one and it works fine, so i'm pretty sure the wiring and fuses are ok. Thanx again.