Rockville RWS10CA Slim 1000 Watt 10" Amplified Powered Car Subwoofer Enclosure Rockville RWS10CA Slim 1000 Watt 10" Amplified Powered Car Subwoofer Enclosure. 1000 Watts Peak power output. 300 Watts RMS CEA rated. 10" Super Slim Subwoofer. Ultra Stiff Composite Pulp Cone with Kevlar Reinforcement. 3D Molded Acrylic Dust Cap. Expanded & Rolled Steal Basket. High Density Laminated Foam Surround. High Power Strontium Magnet with Ultra Saturated High BL Motor Structure. Vented Core Magnet Motor Structure. 2" High Temperature Aluminum Voice Coil. 8mm Washer & Yoke Plates. 13.6mm Peak-to-Peak X-Max. 60oz. Magnet Motor Structure. Super Slim Sealed MDF Enclosure Design. Aviation Grade Black Tweet Carpet with Embroidered Logo. Black Texture Synthetic Leather Front Panel. Impedance: 4-ohms. Frequency response: 43Hz-500Hz. SPL @ 1w/1m: 93dB. Dimensions: (LxWxH): 24" x 7" x 15". Built-in 300 Watts RMS CEA Rated / 1000 Watt Mono Block Amplifier. 150mV  5V Variable Input Level. 24dB Low Pass Crossover Frequency 50Hz-250Hz. Low Level RCA Inputs. High Level Speaker Level Input with Auto Start Music Sense. RJ11 Jack for Dash Mounted Bass Remote.