Polk Audio SurroundBar360? DVD Home Theater System (Black) Polk Audio patented SDA Surround technology delivers a full 5.1 Home Theater sound from a single, 44 1/2-inch cabinet 1080i HDMI with high definition video up-conversion from any video input PowerPort Bass Venting System for superior clean, low distortion bass that you can really feel; no external subwoofer required. Single 15-feet cable for the absolute easiest hookup; no more tangled wires to string around a room Remote control for complete control of all sources at your fingertips