Altec Lansing XA3001 Powered Subwoofer for TV and Gaming Compact, powered subwoofer for use with televisions, DVD players, personal computers, and video-game systems 19 watts of total continuous power (RMS), 30 watts total peak power Deep-bass, ported subwoofer with 5.25-inch long-throw woofer and 20 to 150 Hz frequency response (-3 dB) Stereo analog (left/right) RCA inputs compatible with Sony PlayStation, Microsoft Xbox, Nintendo, and GameCube systems Measures 8 x 8 x 14.5 inches (W x H x D) positioned horizontally