10-Inch 500 watts active subwoofer system with Class - D Amplifier, spun paper cone, 2X high level and 2X RCA/Cinch inputs, automatic on/off, cable remote control, power on 2-color ED"s. General: Frequency Response: 25-200Hz Low Pass Filter: Variable 50-200Hz Gain Control/Phase: 0.2-5V/0-180° Bass Boost: 0-12dB Sensitivity: 91dB Dimensions: 455mm x 338mm x 226mm Housing Volume: 22 Liter 4 Ohms Grille