Amazon.com: Alphasonik AS10DF 10" 1200 Watts 4-Ohm Down Fire Shallow Mount Flat Enclosed Sub woofer for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Air Tight Sealed Bass Enclosure :
Buy Pioneer UD-SW200D Single Down-Firing Subwoofer Box Enclosure for 8" Shallow Sub Online for $69.99CAD at AVGearShop.com
Amazon.com: Alphasonik AS8DF 8 inch 600 Watts 4-Ohm Down Fire Shallow Mount Flat Enclosed Sub woofer Slim Thin Loaded Subwoofer Air Tight Sealed Bass Enclosure : Electronics
TS-SWX2502 - 10" Shallow-Mount Pre-Loaded Enclosure | Pioneer Electronics USA
Down-Firing vs Front-Firing Subwoofers | Klipsch
UD-SW300D - Downfiring Enclosure for 12" Shallow Subwoofers - Accessory | Pioneer Electronics USA
KICKER CompRT Down-Firing 10” Dual-Voice-Coil 2-Ohm Loaded Subwoofer Enclosure Black 48TRTP102 - Best Buy
Pioneer UD-SW200D Single down-firing sealed enclosure for 8" shallow sub Car Subwoofers - Newegg.com
OE AUDIO OE-110FA 10 Inch 25cm 1300W Active Car Subwoofer Bass Box fire down.... | eBay
Car Speaker Boxes and Enclosures | Lincoln Lectronics
Pioneer UD-SW300D Single down-firing sealed enclosure for 12" shallow sub at Crutchfield
UD-SW80D - Downfiring Enclosure for 8" Shallow Subwoofer | Pioneer Electronics USA
Amazon.com: Alphasonik AS10DF 10" 1200 Watts 4-Ohm Down Fire Shallow Mount Flat Enclosed Sub woofer for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Air Tight Sealed Bass Enclosure :