Dual XOBP12D 12-Inch 1100 Watts Illumination Bandpass Subwoofer Low Q Optimized Drivers Mirrored/Diamond Plated Chambers Handles 600 watts RMS power, 1100 watts peak power Carpeted enclosure, plexi subwoofer viewing window, mirrored/diamond-plated chamber 12-inch Low-Q optimized drivers, four-port dual chamber design