Give it a while after unplugging it before you start poking around in the amp, let the capacitors discharge.... I don’t take stuff apart right after unplugging. Thanks for advice !!! I’ll see maybe I can fix it easily maybe not . Can always find a new set used cheap if I wait long enough in way better shape . Wish there were inputs so I could use this sub with a normal receiver it as little beast !! Ultimate bass lover !! si ht15 dvc. Free the reptile [emoji1656] aliens [emoji89]