Amazon.com: Pyle 12" Dual Subwoofer Box System - 600-Watt Slim Mount Truck Audio Subwoofer Box - Rear Vented Design with Built-in Illuminating LED Lights, 2x600 Watts Max Power : Electronics
Amazon.com: DR DOUBLE ROCK CB08 Under-Seat Subwoofer Car Audio 600 Watts 8 inch Slim Powered Subwoofer with Built in Amp Active Compact Subwoofer with Amplified+Bass Volume Control Knob : Electronics
RCF SUB-8006AS Dual 18″ Active High Power Subwoofer – Sonic Circus
Dual ALB12 12 Inch Amplified Subwoofer with Ported Enclosure
Titan 12" Subwoofer | Car Audio Equipment | American Bass
Dual Electronics DWS12 12-inch High Performance Subwoofer with a 2-inch Single Voice Coil and 1,000 Watts of Peak Power - Walmart.com
Dual 10 Inch 1000 Watt Car Audio Subwoofer Enclosure with LED | Seismic Audio
Amazon.com: PyleUsa 8" Dual Subwoofer Box System - 400-Watt Slim Mount Truck Audio Subwoofer Box - Rear Vented Design with Built-in Illuminating LED Lights, 2x400 Watts Max Power : Electronics
10" Dual Series Vented Subwoofer Enclosure for Car Audio - High Powered Sub Woofer Speaker with a 10 Inch Silver Paper Cone and Built-in Illuminating LED Lights - 2x500 Watt Max Power -
8" Dual High Output Glue it & Screw It Sub Enclosure. - GP Car Audio
TNE212DV Dual 12" TERMINATOR Series 1000-Watt Peak Power Subwoofer Enclosure | MTX - Serious About Sound®