Amazon.com: SA-10 D2 CLASSIC - Sundown Audio 10" Dual 2-Ohm 750W RMS SA Series Subwoofer : Electronics
10" Subwoofer Dual 4 Ohm 900 Watts RMS Car Audio Sub Audiopipe TXX-BDC4-10, Audiopipe TXX-BDC4-10 is a 10 Dual 4 OHM High Performance Subwoofer By Brand Audiopipe - Walmart.com
TS-W1007D2|D4 - Premier 10" Champion Series Subwoofer with 1000 Watts Max. Power | Pioneer Electronics USA