Filter Filters 12" Remove All Filters Price Under $50 (5) $50-$100 (44) $100-$500 (284) $500 and above (132) Condition New (374) Refurbished (88) Used (3) Brand Kicker (215) Harmony Audio (65) Subwoofer Boxes (62) Alpine (15) Memphis Audio (11) Bazooka (2) Peavey (2) Rockford Fosgate (2) Diamond Audio (1) Voice Coils 2 Ohm (1) Dual (58) Dual 2 Ohm (1) Single (97) Single 2 Ohm (1) triple (1) Sensitivity 81-85 dB (1) 83.1dB (2) 86 dB (1) 86-90 dB (74) 86.7 dB (2) 86.9 dB (2) 87 dB (1) 87.1 dB (16) 87.3 dB (1) 87.3dB (1) 87dB (1) 88.2dB (4) 88.6 dB (1) 88.6dB (2) 91.2dB (1) 98 dB (1) Over 101 dB (1) Speaker Type 1-way (2) Fixture Type Dual (85) Single (70) Receiver Size Yes 10-7-2015 (139) Speaker Type Subwoofer System (2) Active/Passive Passive (2) Kicker L7S12 Car Audio Solo-Baric 12 Subwoofer Square L7 Dual 2 Ohm Sub 44L7S122 $279.96 Alpine S-W12D2 Car Audio Type S Dual 2 Ohm 1200W 12" Subwoofers with Install Kit $399.90 Alpine S2-W12D4 Car Audio Type-S Series Dual 4-Ohm 12 Inch Subwoofer $186.95 Kicker L7S12 Car Audio Solo-Baric 12 Subwoofer Square L7 Dual 4 Ohm Sub 44L7S124 $279.96 (4) Alpine S2-W12D2 Car Audio Type-S Series Dual 2-Ohm 12 Inch Subwoofer $186.95 Kicker 46L7T122 Car Audio L7T Shallow Mount 12" Sub Square L7 Subwoofer L7T12 $239.96 (2) Kicker 46L7T124 Car Audio L7T Shallow Mount 12" Sub Square L7 Subwoofer L7T12 $239.96 Kicker 48CWRT124 12-Inch CompRT 4-Ohm Dual 500 (Watts RMS) 1000 (Watt Peak)... $183.96 Kicker 45L7R124 Car Audio L7R Square 12" Sub 1200W Dual 4 Ohm Subwoofer L7R12 $199.96 Harmony Audio HA-C124 Car Stereo Competition Carbon 12" Sub 2200W Dual 4 Ohm... $169.95 (4) Harmony Audio HA-R124 Car Stereo Rhythm Series 12" Sub 600W Single 4 Ohm... $67.95 (2) Alpine 12" R-Series Dual 4-Ohm Subwoofer Single Vented Ported Enclosure Sub... $555.45 Alpine R2-W12D2 Next-Generation R-Series Dual 2-Ohm 750 RMS Watts 12" Subwoofer $379.95 Harmony Audio HA-ML122 Monolith 12" Competition Sub 3000W Dual 2 Ohm Subwoofer $309.95 (9) Harmony Audio HA-ML121 Monolith 12" Competition Sub 3000W Dual 1 Ohm Subwoofer $309.95 (1) Alpine S-W12D4 Car Audio Type S Series Sub Dual 4 Ohm 1800W Peak 12" Subwoofer $199.95 Alpine 12" R-Series Dual 4-Ohm Subwoofer Vented Ported Enclosure Sub Box Kit $759.90 Alpine S-W12D2 Car Audio Type S Series Sub Dual 2 Ohm 1200W Peak 12" Subwoofer $199.95 (1) Kicker 48CWR122 12-Inch CompR 2-Ohm Dual 500 (Watts RMS) 1000 (Watt Peak)... $135.96 Harmony Audio HA-F124 Car Stereo Flatline Series 12" Sub 800W Single 4 Ohm... $99.95 Harmony Audio HA-C122 Car Stereo Competition Carbon 12" Sub 2200W Dual 2 Ohm... $169.95 (3) Single 12" Subwoofer Regular Standard Cab Truck Ported Stereo Sub Box Enclosure $79.95 (1) Kicker 48DCWR122 Dual 12" CompR Series Sub 1000W RMS 2 Ohm Loaded Subwoofer... $570.08 Kicker 43C124 12" Comp C12 Series Sub 150W RMS 4 Ohm SVC Car Subwoofer $99.90 (1) 123456...20