Down Firing vs. Front Firing Subwoofer - Blog - REL
PS-ADF110T 10" Amplified Downfiring Enclosure
HOW DOES IT SOUND? - Downfiring Subwoofer Build Finished! - YouTube
Air-Bus Wireless 8 In. Down-Firing Subwoofer, 110W
Pioneer UD-SW300D Single down-firing sealed enclosure for 12" shallow sub at Crutchfield
Kicker 48CVTDF122 Sealed Down-Firing Enclosure with 12" 2-Ohm Subwoofer | World Wide Stereo
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
Amazon.com: KICKER Comp 12" (30cm) Subwoofer in Down Firing Encl, 4-Ohm; RoHS Compliant : Electronics
Down-Firing Subwoofer - Placement and Orientation | AV Gadgets
Amazon.com: Pyle 8'' Active Down Firing Subwoofer - Home Theater Surround Sound Black w/Sealed Design, Magnetic Design w/Sleek Black Color, Down Firing Port for Deeper Bass Resonance - PSUB8A : Musical Instruments
Kicker Comp RT 10" Down Firing Subwoofer Kit with Box: TRTP102-SK