Best Buy: Pioneer 12" 800W Single-Voice-Coil 4-Ohm Subwoofer Black/Blue TS-W301R
Pioneer TS-W3004D4 | Car Entertainment, Featured, Subwoofers, Champion Series Subwoofer, Champion Series Pro | Pioneer Middle East - Car Stereo, Car Subwoofer, Amplifier
2) PIONEER TS-A3000LS4 12" 800W RMS A-SERIES SINGLE 4-OHM CAR AUDIO SUBWOOFERS | eBay