Just for kicks, try putting in new fuses. Sometimes it's something simple.
Lower Volume from One Monoblock
Technical question on Cary 500 monoblocks. One amp is noticeably lower in output volume than the other. My sound was off-centered, a good bit louder on the left. Swapping the monoblocks left to right the louder sound swapped too. The left channel is now lower in volume. Any ideas on what goes wrong with a monoblock to reduce the output. The amp plays, it is just lower in output than the other amp?