Pioneer TS-W311D4 Champion Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Pioneer TS-W311D4
Pioneer TS-W312D4 | Car Entertainment, Subwoofers, Champion Series Subwoofer, Champion Series Red Subwoofer | Pioneer Middle East - Car Stereo, Car Subwoofer, Amplifier
Pioneer TS-W311 - 12" Subwoofer
PIONEER TS-W261D4 1200W 10" Champion Series Dual 4 ohm Car Subwoofer TSW261D4 $51.64 - PicClick