Kenwood KSC-SW11 150W Underseat Active Subwoofer with Passive Radiator. Item model number: 21549898. Product Dimensions: 27.94 x 19.05 x 6.99 cm; 2.8 Kilograms. Product Dimensions : 27.94 x 19.05 x 6.99 cm; 2.8 Kilograms. Item model number : 21549898. Recommended uses for product: For music players. Compatible devices: Personal Computer. Subwoofer diameter: 8 Inches. Controller type: Remote Control. Surround-sound channel configuration: 2.0. Aluminium die cast frame. Wired remote control (level/Freq/Phase control). Speaker level input option. Product Description Kenwood KSC-SW11 underseat active subwoofer delivers 150 watts peak power from its aluminium die cast robust frame and chassis, comes with a wired remote control which allows you to control level control, Frequency and Phase control. RCA and High level (speaker) inputs also allows you to connect to either an aftermarket stereo system or your factory original equipment, Box Contains 1 x underseat active sub bass remote control.