Polk Audio 32 in. Sound Bar Shallow-depth design, just 2.25-inches deep, blends seamlessly with your flat panel TV installation. Compact, uniquely engineered multiple-driver array delivers superior midrange detail, for pinpoint vocal clarity and realistic imaging. Polks proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds. Advanced on-board power amplifier: connect directly to your TV, DVD or Blu-Ray player, or gaming console. Built-in keyhole slots for easy wall-mounting; just one of a wide range of placement options.