Filter Filters Dual 10" Remove All Filters Price $50-$100 (1) $100-$500 (3) Condition New (4) Brand Harmony Audio (4) Sensitivity 84 dB (1) 84dB (1) 85.7dB (2) Harmony Audio HA-A102 Car Stereo Alloy Series 10" Sub 800W Dual 2 Ohm Subwoofer $79.95 Harmony Audio HA-A102 Car Stereo Alloy Series 10" Sub 800W Dual 2 Ohm... $189.99 Harmony Audio HA-C102 Car Stereo Competition Carbon 10" Sub 2000W Dual 2 Ohm... $149.95 (1) Harmony Audio HA-C104 Car Stereo Competition Carbon 10" Sub 2000W Dual 4 Ohm... $149.95 (1)