KICKER CompRT Down-Firing 8” Dual-Voice-Coil 2-Ohm Loaded Subwoofer Enclosure Black 48TRTP82 - Best Buy
Pioneer UD-SW300D Single down-firing sealed enclosure for 12" shallow sub at Crutchfield
Kenwood Excelon P-XRW122DB Reference Series down-firing sealed enclosure with one 12" subwoofer at Crutchfield
BIC America 12" 430-Watt Powered Down-Firing Subwoofer - Walmart.com
Kicker 48CDF124 Comp Series 150W 12" Sealed Down Firing Subwoofer Enclosure 713034020332 | eBay
HOW DOES IT SOUND? - Downfiring Subwoofer Build Finished! - YouTube
PTRTP Powered Down-Firing 10” Enclosure | Audio Express | Western United States
PS-DF110T 10" Downfiring Enclosure
Kenwood P-W804B 8" Down-Firing Subwoofer in Ported Enclosure
LAB PreFab™ 0.48 ft^3 Sealed Downfire MDF Enclosure Box for Single 12" Round Car Subwoofer
KICKER - 48CVTDF122KT - 12" CompVT Down-Firing Subwoofer Package
Kicker Comp RT 12" Down Firing Subwoofer Kit with Box: TRTP112-SK
Down Firing vs. Front Firing Subwoofer - Blog - REL
KICKER 48TRTP122 TRTP 12" 1000w Down Firing Subwoofer+Sub Enclosure Box+ROCKBOX - Rockville Audio
10" Loaded Shallow Down Fire Subwoofer Enclosure 300 Watts Rms
Amazon.com: Seismic Audio - 18" Down Firing Pro Audio Subwoofer PA Cabinet : Musical Instruments
Wireless 110W 8-inch Down-Firing Subwoofer | AB-800 | OEM
Down Firing vs. Front Firing Subwoofer - Blog - REL
BESTISAN Powered Subwoofer, Deep Bass Subwoofer, Down Firing Sub in Compact Size, Easy Setup with Home Theater System, TV, Receiver, Speakers (RCA Cable Included, Black),SW65C - Yahoo Shopping
Amazon.com: KICKER TRTP 8-inch (20cm) Thin Down Firing Subwoofer and Passive Radiator Enclosure, 2-Ohm, RoHS Compliant : Electronics
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
Down-Firing vs Front-Firing Subwoofers | Klipsch
KICKER CompRT Down-Firing 12” Dual-Voice-Coil 2-Ohm Loaded Subwoofer Enclosure Black 48TRTP122 - Best Buy
Dayton Audio 6-1/2" Down Firing Passive Mini Subwoofer Kit 100 Watts
Front- and down-firing subwoofers -- Teufel Audio blog
Audio Enhancers® MMC170C12 - 12" 2-Hole Downward-Firing Sealed Subwoofer Enclosure
Kicker 49PTRTP 12" Down-Firing Powered Subwoofer Enclosure — Showtime Electronics
