Special Features:

45hz to 20khz; components work as a system; voice matched; dual midrange drivers; 200 watt powered subwoofer; down-firing bass driver; video shielded; subwoofer phase, level and bass boost controls; subwoofer line level and lfe inputs; subwoofer auto on/off external trigger connection; low standby power; wall mounting hardware; 5.1 channels; consists of dual midrange center with satelite speakers and a subwoofer

Properties:

Two or more loudspeakers on a common mounting or mounted on each other. It does not include one loudspeaker with accessories such as transformer, case or resistors. For coaxial loudspeakers which are not readily separable, see loudspeaker (as modified).