Home theater electronics, including in-wall surround sound speaker wiring. Speaker system is 7.1 (7 speakers, 1 subwoofer). This includes three in-wall front speakers (behind a sound transparent screen), two in-wall side speakers, and two in-ceiling (round) rear speakers. The flat subwoofer sits on the ground under the media cabinet. All speakers and sub plug into the receiver, which plugs into the projector. The projector is short-throw and sits in front of the screen for excellent clarity. LTKsalealert LTKhome LTKSale