Filter Filters Harmony Audio Remove All Filters Price Under $50 (2) $50-$100 (78) $100-$500 (1563) $500 and above (403) Condition New (2018) Refurbished (28) Size 12" (65) 10" (53) 15" (43) 18" (8) 8" (2) Voice Coils Dual (18) Dual 2 Ohm (1) Single (10) Single 2 Ohm (2) Amplifier Class Class D (1) Stable to (Ohm) 1 Ohm (1) Make Cadillac (9) Chevy (212) Dodge (44) Ford (184) GMC (166) Honda (22) Infiniti (9) Jeep (14) Nissan (17) Show More Toyota (26) Model Sierra (149) Silverado (124) F-150 (116) Ram Truck (44) Mustang (35) Avalanche (30) CK Pickup (25) Camaro (20) Tacoma (20) Show More S2000 (18) F-250 / 350 / 450 / 550 (15) Wrangler (14) G35 Coupe (9) Explorer Sport Trac (9) Ranger (9) Escalade EXT (9) 350Z (9) S-10 Truck (8) Sonoma (8) Envoy (7) Tundra (6) Titan (5) Ridgeline (4) Frontier (3) Colorado (3) Canyon (2) Trailblazer (2) Sensitivity 83.1dB (2) 84 dB (1) 84dB (1) 85.7dB (2) 86.1dB (2) 86.9dB (2) 87 dB (1) 87.1 dB (1) 87.1dB (1) 87.3 dB (1) 87.3dB (1) 87.dB (1) 87dB (1) 88.2dB (4) 88.4dB (2) 88.6dB (2) 88.7dB (2) 89.4 dB (1) 89.4dB (1) 90.4dB (1) 91.2dB (1) Channels 1 (1) Fixture Type Dual (51) Single (44) Bundled Items Harmony Audio (1) Not Applicable (1) 4x Harmony HA-ML151 Monolith 15" Competition SPL Sub 3200W Dual 1 Ohm Subwoofer $1300.99 Harmony Audio HA-A102 Car Stereo Alloy Series 10" Sub 800W Dual 2 Ohm Subwoofer $79.95 Harmony Audio HA-R124 Car Stereo Rhythm Series 12" Sub 600W Single 4 Ohm... $67.95 (2) 4x Harmony HA-ML121 Monolith 12" Competition SPL Sub 3000W Dual 1 Ohm Subwoofer $1174.99 Harmony Audio HA-ML121 Monolith 12" Competition Sub 3000W Dual 1 Ohm Subwoofer $309.95 (1) Harmony HA-ML1X12D2 12" Dual 2-OHM Subwoofer Vented Enclosure Box Subpackage $379.95 2x Harmony HA-ML121 Monolith 12" Competition SPL Sub 3000W Dual 1 Ohm Subwoofer $589.99 Harmony Audio HA-C124 Car Stereo Competition Carbon 12" Sub 2200W Dual 4 Ohm... $169.95 (4) Harmony Audio HA-ML151 Monolith 15" Competition Sub 3200W Dual 1 Ohm Subwoofer $339.95 Harmony HA-ML1X15D2 15" Dual 2-OHM Subwoofer Vented Enclosure Box Subpackage $409.95 Harmony Audio HA-A152 Car Stereo Alloy Series 15" Sub 1500W Dual 2 Ohm Subwoofer $109.95 Harmony Audio HA-A122 Car Stereo Alloy Series 12" Sub 1000W Dual 2 Ohm Subwoofer $84.95 4x Harmony Audio HA-C122 Car Competition 12" Sub 2200W Dual 2 Ohm Subwoofer New $640.99 Harmony Audio HA-ML181 Monolith 18" Competition Sub 3500W Dual 1 Ohm Subwoofer $379.95 (1) Universal Car Stereo Vented Port Single 12" Kicker Comp C12 Loaded Sub Box... $195.99 Harmony Audio HA-F124 Car Stereo Flatline Series 12" Sub 800W Single 4 Ohm... $99.95 Harmony Audio HA-A152 Car Stereo Alloy Series 15" Sub 1500W Dual 2 Ohm... $209.99 Harmony Audio HA-A102 Car Stereo Alloy Series 10" Sub 800W Dual 2 Ohm... $189.99 8x Harmony Audio HA-C124 Car Competition 12" Sub 2200W Dual 4 Ohm Subwoofer New $1280.99 2x Harmony HA-ML122 Monolith 12" Competition SPL Sub 3000W Dual 2 Ohm Subwoofer $589.99 8x Harmony Audio HA-C122 Car Competition 12" Sub 2200W Dual 2 Ohm Subwoofer New $1280.99 Harmony Audio HA-A122 Car Stereo Alloy Series 12" Sub 1000W Dual 2 Ohm... $164.99 Harmony Audio HA-R154 Car Stereo Rhythm Series 15" Sub 900W Single 4 Ohm... $84.95 Harmony Audio HA-C122 Car Stereo Competition Carbon 12" Sub 2200W Dual 2 Ohm... $169.95 (3) 123456...86