Amazon.com: Alphasonik AS8DF 8 inch 600 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 :
Amazon.com: AudioPipe TXX-BDC4-8 8 Inch 1000 Watt High Performance Powerful 4 Ohm DVC Vehicle Car Sub Audio Subwoofer Speaker System, Black : Electronics
Monoprice 8in 60-Watt Powered Subwoofer, Black - Monoprice.com
IMC Audio PPS8SS 8" Single Sealed Sub Box Subwoofer Enclosure 8 inch Speaker Box Sub Woofer - Walmart.com
8 Inch 100W High Power Subwoofer W-1 Active HiFi Subwoofer Home Theater Home Audio Echo Gallery TV Computer Stage Speakers _ - AliExpress Mobile
DS18 ZXi8.4D High Excursion 8" Car Audio Subwoofer 1200W Watts DVC 4-Ohms Quad Stacked Magnets
EVL-8 | 8" 800 Watt Max Power Car Subwoofer - Skar Audio
Euphoria 8" Neo sub – Insane Asylum Motorsports
Boss Audio 8-inch Dual Voice Coil 4-ohm 1000-watt Car Subwoofer, Black | P80dvc : Target
Amazon.com: CT Sounds MESO-8-D4 1600 Watts Max 8 Inch Car Subwoofer Dual 4 Ohm
BOSS Audio Systems BAB8 8 Inch Powered Under Seat Car Audio Subwoofer - 800 Watts Max, Low Profile, Remote Subwoofer Control, For Truck, Boxes and Enclosures - Walmart.com
XL-844D 8" Subwoofer
Aiyima 8 Inch Subwoofer Speaker Woofer 4 8 Ohm 150w High Power Long-stroke Deep Bass Hifi Sound Loudspeaker Diy For Home Theater - Speakers - AliExpress
8" 750w RMS Subwoofer 1.5K Series by Tezla Audio - SSA STORE