I installed this into a custom fiberglass sub box in my G35. I wired it to push 1000 watts rms at 2ohm. The sound quality was decent, but not great. That may have been due to 1) fiberglass gives a different sound than wood boxes, and 2) the box it was in may have been too small. The box was approximately .9 sq. ft. which is in the stated tolerance, but I inverted the sub to give it some extra room, and added polyfill, which did improve the sound. Incredibly loud for a single ten in a sealed box, just didn't seem as accurate as it should have been. OCS has a great price on this sub, so if you're looking for something loud at an affordable price, this sub is worth the money, but I would try a larger sub box, closer to 1.25 sq.Ft.