I bought this to replace the Boss 1500 watt sub (which in my opinion is junk! I fried it trying to tune it!!!!!!!! lol) So I bought this sub, Good deal at 65 bucks free ship. I recommend researching your box before you buy one. I bought a box that had an air space that was within the 'range' listed on the subwoofer and it sounded ok in my ext truck. I think this sub would probably be more suited in an SUV, I sold it to a friend whos ext was slightly bigger than myne and it sounded pretty good.