Filter Filters Harmony Audio Remove All Filters Price Under $50 (83) $50-$100 (42) $100-$500 (529) $500 and above (20) Condition New (663) Refurbished (10) Used (1) Size 12" (22) 10" (22) 15" (19) 8" (1) 18" (1) Voice Coils Single (7) Single 2 Ohm (3) Make Chevy (71) Dodge (18) Ford (25) GMC (63) Honda (18) Kia (1) Mazda (6) Model Sierra (54) Silverado (35) CK Pickup (18) Ram Truck (18) S2000 (18) Corvette (9) Envoy (9) Mustang (9) Trailblazer (9) Show More Explorer Sport Trac (8) F-150 (8) Miata (6) Rio (1) Sensitivity 86.1dB (1) 87.1 dB (1) 87.1dB (1) 87.3 dB (1) 87.3dB (2) 87.dB (1) 88.2dB (2) 90.4dB (1) Fixture Type Single (44) Universal Car Stereo Vented Port Single 15" Harmony Audio A152 Sub Box &... $390.99 Universal Car Stereo Vented Port Single 15" Harmony Audio A152 Sub Box &... $305.99 Universal Car Stereo Rearfire Sealed Single 15" Harmony A152 Sub Box & CXA800.1 $388.99 Universal Car Stereo Hatchback Sealed Single 15" Harmony A152 Sub Box & CXA800.1 $386.99 Harmony Audio HA-E115 Single 15 Empty Vented Port Sub Box Unloaded Enclosure New $109.95 (1) Universal Car Stereo Rearfire Sealed Single 10" Harmony R104 Sub Box & CXA400.1 $223.99 Universal Car Stereo Vented Port Single 12" Harmony Audio R124 Sub Box &... $201.99 Universal Car Stereo Hatchback Sealed Single 12" Harmony A122 Sub Box & CXA800.1 $361.99 Universal Car Stereo Hatchback Sealed Single 10" Harmony F104 Sub Box & CXA400.1 $254.99 Universal Car Stereo Vented Port Single 15" Kicker Comp C15 Sub Box Enclosure... $330.99 Universal Car Stereo Vented Port Single 10" Kicker Comp C10 Sub Box Enclosure... $204.99 Universal Car Stereo Vented Port Single 12" Harmony Audio R124 Sub Box Enclosure $96.99 Universal Car Stereo Rearfire Sealed Single 10" Harmony F104 Sub Box & CXA400.1 $251.99 Universal Car Stereo Vented Port Single 12" Harmony Audio A122 Sub Box Enclosure $115.99 Harmony Audio HA-E112 Single 12 Empty Vented Port Sub Box Unloaded Enclosure New $69.95 (3) Universal Car Stereo Slotted S Port Single 12" Harmony A122 Sub Box Enclosure $150.99 Universal Car Stereo Vented Port Single 12" Harmony Audio R124 Sub Box &... $246.99 Universal Car Stereo Slotted S Port Single 15" Harmony A152 Sub Box & Harmony... $335.99 Universal Car Stereo Hatchback Sealed Single 15" Harmony A152 Sub Box &... $300.99 Universal Car Stereo Slotted S Port Single 15" Kicker Comp C15 Sub Box... $366.99 Universal Car Stereo Slotted S Port Single 10" Kicker Comp C10 Sub Box... $229.99 Universal Car Stereo Vented Port Single 10" Harmony Audio A102 Sub Box &... $274.99 Universal Car Stereo Hatchback Sealed Single 12" Harmony R124 Sub Box & CXA400.1 $255.99 Universal Car Stereo Rearfire Sealed Single 15" Harmony A152 Sub Box &... $303.99 123456...29