Kicker 11HS8 8" 150W Hideaway Car Audio Powered Subwoofer Sub Enclosure HS8 RMS Power: 150 Watts Ultra-compact powered subwoofer system designed for tight locations Dimension: 13 7/8 x 9 3/8 x 3 1/8 8-inch internal subwoofer 150-watt (RMS, 14.4v) power amplifier