Filter Filters Rockford Fosgate Remove All Filters Price $50-$100 (1) $100-$500 (2) Condition New (3) Size 10" (1) 12" (1) Voice Coils Dual (2) Sensitivity 86-90 dB (2) Receiver Size Yes 10-7-2015 (2) Rockford Fosgate R2D4-10 10" Prime R2 4-Ohm DVC Subwoofer Car Audio Sub Speaker $94.99 Rockford Fosgate R2D4-12 12" Prime R2 4-Ohm DVC Subwoofer Car Audio Sub Speaker $104.99 Rockford Fosgate R2-250X1 Car Audio Mono Prime Sub Amplifier 250W Subwoofer Amp $219.95