KICKER COMPRT10" Down-Firing Enclosure - AudioWorks of Delaware | Turn It On! | Car Alarms - Remote Starters - Audio Systems - Navigation Systems - Multimedia Systems - Custom Car Rims & Tires - On-site Company Fleet Services
Alphasonik ASDF 10" Down Fire Shallow Mount Flat Enclosur | Alphasonik
Kicker 47TRTP102 10-Inch Thin Down Firing Subwoofer And Passive Radiator Enclosure, Kicker KX400 amplifier and wire kit - Walmart.com
Kicker Comp RT 12 Inch Thin Down Firing Enclosure Package with 46CXA4001 Amplifier and wire kit - Creative Audio
How to Make Underseat Downfiring Subwoofer Box-Mounted Amp - YouTube
Kicker 48TRTP122 Sealed downward-firing enclosure with CompRT® 12" shallow-mount subwoofer and passive radiator at Crutchfield
Kenwood P-W804B 8" Down-Firing Subwoofer in Ported Enclosure