well ive got a AQ 3500 watt amp, rockford fosgate capacitor and 0 gauge wire kit. i think that the back of the sub on the speaker wire was wired wrong, the positive on one side the sub also was hooked into the negitive on the other side of the sub and the negative on one side went straight to the amp which left the other positive on the back of the sub not hooked up to anything at all. they told me "it was on fire because the way it was hooked up on the back of the sub was like taking a car battery and hooking it up back wards" or like "grounding it out"