I built a subwoofer for my home theater! - YouTube
Denon Home Subwoofer - Subwoofer with HEOS® Built-in | Denon - US
HO112R-W7AE - Car Audio - Subwoofer Systems - H.O. Wedge™ - JL Audio
Amazon.com: IMC Audio PPA8SS 8 Inch Car Speaker Box Enclosures - 8 Subwoofer Box for Great Sound Quality Home & Vehicle Car Speakers 8 Inch Speaker Terminal One 8" Sub Box - Charcoal : Electronics
Elura SUBB8.2 Black Label 8" 150-Watt Down Firing Power Port Subwoofer – MSTR Brand
Q POWER Q-Power 18.25 in. x 13.25 in. x 5.25 in. Shallow Single 12 in. Sealed Truck Subwoofer Sub Box SHALLOW-SINGLE12 - The Home Depot
Wet Sounds Stealth AS-6 Marine powered subwoofer — sealed enclosure with 6" sub and 250-watt amp at Crutchfield
Dayton Audio 18" Ultimax DIY Home Theater Subwoofer Kit with 4 Cu Ft Cabinet Package 1000 Watts