It's in a ported box it's pretty **** big but I can't tell you exact specs because I baught it in the box. The guy demoed it with a old Kenwood 1000 watt amp and it hit hard and for whatever reason it does hit ok on my old beat down 600 watt "max" Kenwood amp. It's in a 95 f150 extended cab and the enclosure takes up most of my extended cab area. 0 gauge power and ground wires also big 3 upgrade ND alternator is upgraded from the ford 95amp to the ford 135 amp.
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I put a meter on it to make sure it was at 2 ohms aswell