Filter Filters 88.6dB Remove All Filters Price $100-$500 (2) Condition New (2) Brand Harmony Audio (2) Size 12" (2) Voice Coils Dual (2) Harmony Audio HA-C124 Car Stereo Competition Carbon 12" Sub 2200W Dual 4 Ohm... $169.95 (4) Harmony Audio HA-C122 Car Stereo Competition Carbon 12" Sub 2200W Dual 2 Ohm... $169.95 (3)