Earthquake SoundMiniMe Subwoofers MiniMe-FF8-V2 8" Front Firing Piano Black

Plugged it in, connected my RCA cable and ZAP...got a nice loud and bright arc and burn mark on my RCA cable. Heck, the power switch was still in the OFF position too!The voltage switch was set correctly, nothing was cranked up, or anything. I've had bad subs, but this thing was dangerous. I hope it didn't ruin the sub output from my amplifier.