Pioneer TS-W311D4 (tsw311d4) 1400W 12" Champion Series Dual 4 ohm
Pioneer TS-W311 - 12" Subwoofer
Pioneer TS-W310D4 Champion Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Pioneer 12 Inch 1400 Watt Subwoofer Car Audio Power 4-Ohm DVC Sub | Car Speakers - Newegg.com
Pioneer TS-W311D4 Champion Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Pioneer TS-W311D4 Subwoofer - YouTube
Alphasonik AS12DF 12" 1500 Watts 4-Ohm Down Fire Shallow Mount Flat Enclosed Sub woofer for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Air Tight Sealed Bass Enclosure - Walmart.com
Pioneer TS-W312D4 | Car Entertainment, Subwoofers, Champion Series Subwoofer, Champion Series Red Subwoofer | Pioneer Middle East - Car Stereo, Car Subwoofer, Amplifier
TS-W311D4 - 12" Champion Series Subwoofer with Dual 4 Ohm Voice Coil | Pioneer Electronics USA