2x Pioneer TS-300D4 12 inch 2800 Watts 4-Ohm Dual Voice Coil Car Audio Subwoofer | eBay
1x Pioneer TS-300D4 12 inch 1400 Watts 4-Ohm Dual Voice Coil Car Audio Subwoofer 637740964585 | eBay
Amazon.com: 2 X Pioneer TS-300D4 12 Inch 1400 Watts Max Power Dual 4-Ohm Voice Coil Car Audio Stereo Subwoofer Loudspeakers/Free Alphasonik Earbuds : Electronics