definitive technology supercube 2000 powered subwoofer definitive technology if you want all the high-impact bass excitement of the finest home theater audio systems without taking up a large amount of floorspace, then this is the subwoofer for you. the supercube 2000 is the upgraded successor to the supercube iii—the most successful subwoofer in definitive’s history. it incorporates a new 71 ⁄2-inch supercube technology woofer pressure-coupled to two 71 ⁄2-inch ultra low bass radiators. the total piston area is greater than a 12-inch diameter woofer but with far greater speed, musicality and control than a single large-diameter woofer could ever deliver—and it all fits in an impossibly tiny enclosure that is easy to tuck away out of sight. the supercube 2000 can easily fill all but the largest domestic spaces with loud, visceral, extended, musical bass yet it occupies less than three-quarters of a square foot of floor space!