PIONEER TS-W3003D4 12" 2000W MAX CHAMPION PRO DUAL 4 OHMS SUBWOOFER CAR SUB - Walmart.com
Pioneer Champion Series PRO TS-W3003D4 12" subwoofer with dual 4-ohm voice coils Car Subwoofers - Newegg.com
4) Pioneer 12" 2000W Champion Car Power Subwoofers 4-Ohm DVC Subs | TS-W3003D4 - Walmart.com
Amazon.com: Pioneer TS-A300D4 12 Inch 1500 Watts Max Power Dual 4-Ohm Voice Coil A Series Car Audio Stereo Subwoofer Loudspeakers / Free Alphasonik Earbuds : Electronics