Filter Filters Harmony Audio Remove All Filters Price Under $50 (3) $50-$100 (7) $100-$500 (67) $500 and above (14) Condition New (90) Refurbished (1) Size 12" (7) 10" (5) 15" (5) 18" (2) 6.5" (1) 8" (1) Voice Coils 4 Ohm (2) Dual (1) Single (1) Amplifier Class Class D (2) Stable to (Ohm) 1 Ohm (2) Make Chevy (4) Dodge (1) Ford (2) Nissan (1) Model Corvette (4) F-150 (2) Ram Truck (1) Titan (1) Sensitivity 87.1 dB (1) 89.4 dB (1) 89.5dB (1) 92.2dB (1) Channels 1 (2) Fixture Type Dual (1) Single (3) Compatible with 2003-2008 Nissan 350Z Coupe Under Strut Alpine Type S S-W10D2... $454.99 Compatible with 2001-2005 Ford Explorer Sport Trac SUV Alpine Type S S-W10D4... $306.99 Compatible with 2009-2020 Ford F-150 Super Crew Truck Alpine Type S S-W10D2... $464.99 Compatible with 2003-2015 Infiniti G35 Coupe Alpine Type S S-W10D2 Subwoofer... $471.99 Harmony Audio HC-CMB65 Car Stereo Cabron Midbass Midrange 6.5" Speakers - 2 Pair $74.99 Compatible with 2002-2018 Dodge Ram Quad or Crew Truck Alpine Type S S-W10D2... $515.99 Harmony Audio HC-CMB65 Car Stereo Cabron Midbass Midrange 6.5" Speakers - 3 Pair $104.99 Compatible with 2007-2013 Chevy Silverado Extended Cab Truck Alpine Type S... $465.99 Compatible with 1988-1998 Chevy CK Silverado Extended Cab Truck Alpine Type S... $456.99 Compatible with 2002-2013 Chevy Avalanche Underseat Alpine Type S S-W10D2... $456.99 Compatible with 2001-2015 Ford F250 F350 Extended / Super Cab Truck Alpine... $476.99 (1) Compatible with 2005-UP Nissan Frontier Crew Cab Truck Alpine Type S S-W10D2... $465.99 Compatible with 2007-2013 Chevy Silverado Crew Cab Truck Alpine Type S... $474.99 Compatible with 2009-2020 Ford F-150 Super Crew Truck Kicker Comp C12 Dual... $441.99 Harmony Audio R124 Triple 12" Subwoofer Loaded 1800 Watt Sub Box & Harmony... $449.99 Compatible with 2005-UP Toyota Tacoma Double Cab Truck Kicker Comp C10 Dual... $429.99 Compatible with 1999-2006 Chevy Silverado Extended Truck Kicker Comp C12 Dual... $441.99 Compatible with 2001-2014 Ford F250 F350 Super Crew Truck Kicker CompVT CVT12... $544.99 Universal Car Stereo Vented Port Dual 12" Kicker Comp C12 Sub Box Enclosure &... $379.95 Compatible with 2002-2018 Dodge Ram Quad or Crew Kicker Comp C10 Dual 10" Sub... $416.99 Harmony Audio HA-A152 Car Stereo Alloy Series 15" Sub 1500W Dual 2 Ohm... $209.99 Harmony Audio HA-F104 Car Stereo Flatline Series 10" Sub 700W Single 4 Ohm... $154.99 Compatible with 01-06 Chevy Silverado Non-HD Crew Truck Alpine Type S S-W10D2... $456.99 Compatible with 2009-2015 Ford F-150 Super Crew Truck Kicker CompVT CVT12... $489.99 1234