The iws12-6 install subwoofer employs a high-power, 1400W, 4” voice-coil long-throw driver in a 5.5” deep enclosure that can be installed flush into 2” x 6” stud walls, or surface mounted with only 5.5” of total depth. The bass it provides belies intuition, extending deeper than seems possible, with tight, tuneful expression. It’s the perfect complement to Theory Professional full range speakers to create a truly astonishing high-energy environment.