SVS SB-2000 Subwoofer (Black Ash) &ndash; 12-inch Driver, 500-Watts RMS, Sealed Cabinet The SVS SB-2000 Subwoofer combines power, quickness, intelligent processing, and innovative driver design to deliver an unrivaled bass experience for music, movies, TV and everything you listen to Dimension: 14.6-Inch H x 14.2-Inch W x 15.4-Inch D Driver : 12-Inch ; The Sledge STA-500D is the sonic engine that brings an unprecedented amp technology and sophistication Amplifier : 500 watts rms (1100 watts peak) ; Frequency Response : 19-220 hz 3 DB Standby mode with less than 0.5 watts consumption ; sealed box subwoofer.