Filter Filters Harmony Audio $500 and above Remove All Filters Condition New (18) Size 12" (1) Harmony Audio HA-ML2X12D1 Universal Dual 12" Monolith Series Subwoofer 3000W... $699.95 Compatible with 2005-2014 Ford Mustang Coupe Alpine Next-Generation R-Series... $761.99 Universal Car Stereo Paintable Ported Dual 10" Alpine Next-Generation... $681.99 Compatible with 1994-2004 Ford Mustang Coupe Alpine Next-Generation R-Series... $721.99 Compatible with 1993-2002 Chevy Camaro Coupe Alpine Next-Generation R-Series... $759.90 Universal Car Stereo Rearfire Sealed Dual 10" Alpine Next-Generation R-Series... $681.99 Compatible with 2005-2014 Ford Mustang Coupe Alpine Next-Generation R-Series... $720.99 Universal Car Stereo Hatchback Sealed Dual 10" Alpine Next-Generation... $705.99 Compatible with 2003-2015 Infiniti G35 Coupe Alpine Next-Generation R-Series... $710.99 Universal Car Stereo Paintable Ported Dual 12" Alpine Next-Generation... $767.99 Universal Car Stereo Rearfire Sealed Dual 12" Alpine Next-Generation R-Series... $759.90 Universal Car Stereo Vented Port Dual 10" Alpine Next-Generation R-Series... $685.99 Universal Car Stereo Hatchback Sealed Dual 12" Alpine Next-Generation... $771.99 Compatible with 1982-1992 Pontiac Firebird Coupe Alpine Next-Generation... $710.99 Universal Car Stereo Vented Port Dual 12" Alpine Next-Generation R-Series... $759.90 Compatible with 1994-2004 Ford Mustang Coupe Alpine Next-Generation R-Series... $776.99 Compatible with 1982-1992 Chevy Camaro Coupe Alpine Next-Generation R-Series... $710.99 Compatible with 1993-2002 Pontiac Firebird Coupe Alpine Next-Generation... $759.90