Amazon.com: DS18 Elite Z12 Subwoofer in Black - 12", 1,600W Max Power, 800W RMS, Dual 4 Ohms, DVC - Premium Car Audio Bass Speaker Great for Low Frequencies and High Power Applications (
TNE212D Dual 12" TERMINATOR Series 800-Watt Peak Power Subwoofer Enclosure | MTX Audio - Serious About Sound®
Toro Audio Force 8 Car Subwoofers | 8 Inch Subwoofer | 800 Watts RMS – TORO AUDIO