Sony XSL1090 / XS-L1090P5 / XS-L1090P5 P5 Series 1200-Watt 10 Car Subwoofer w/ 4-ohm Voice Coil & Gold-Plated Binding Post 1200W Peak Power (400W RMS) Gold-plated Binding Posts 10 Inch Aluminum Cone Small Sealed/ Ported Enclosure Optimized