i wasnt really happy with this sub it puts ou a little bass it's only for my center concole and i got 4 12's behind my colsole and i dont know just doesnt really do anythang it's good if your wantin a little bump but not if your lookin to show off

These subs are junk. You can barely hear them in a sealed box but they're not built strong enough to use a ported box. i had an oldschool 800 watt planet audio amp hooked up to them which should be more than enough, but the subs weren't even as loud as a pair of 6x9's. Waste of money. Go with kickers.