Amazon.com: PIONEER TS-A120D4 A Series 12" 1500 W Max Power, Dual 4 Ohm Voice Coil, IMPP Cone, Rubber Surround - Component Subwoofer, Black : Electronics
Pioneer TS-W306R 12" Subwoofer
Subwoofer Pioneer TS-W302F specifications.
Pioneer TS-W33C 12" Speaker 450W Impp Enclosure Type Subwoofer for Sale in Miami, FL - OfferUp
Amazon.com: PIONEER TS-A120D4 A Series 12" 1500 W Max Power, Dual 4 Ohm Voice Coil, IMPP Cone, Rubber Surround - Component Subwoofer, Black : Electronics
Amazon.com: Pioneer TSW126M 12" Subwoofer with IMPP Cone : Automotive
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specs on a pioneer TS-W302F IMPP sub - Third Generation F-Body Message Boards