The compact SW4 10" subwoofer has the same great sound you've come to expect from the SW series, but it takes up less than a cubic foot. All SW series subwoofers generate true deep, thunderous bass--the foundation of a superb sounding home theater system. The SW4 is our most compact size subwoofer and is ideal for providing deep, dynamic bass while occupying minimal space. It extends flat to 25 hz, and is ideal for hi-fi bass in family rooms, bedrooms, offices, or as a supplement to a micro home theater system. Its compact size also makes it ideal for running multiple units around a room for improved bass distribution. As is our standard, the SW4 can be used with any combination of Induction Dynamics loudspeakers to add explosive impact to your surround sound system.