Rockville SS8P 400w 8" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub
underseat subwoofer Kenwood KSC-SW11 (review and sound test) - YouTube
Underseat 10-Inch Subwoofer Enclosure For Full-Size Trucks and Other Vehicles - Big Daddy's Stereo
Sony XS-AW8 Compact powered under-seat subwoofer enclosure: 75 watts and an 8" sub at Crutchfield
Amazon.com: DR DOUBLE ROCK 8 inch CB08 Underseat Subwoofer Car Audio 600 Watts 8 '' Slim Powered Subwoofer with Built in Amp Active Compact Subwoofer with Amplified+Bass Volume Control Knob : Electronics
Amazon.com: AUDIOTEK 10 Inches 1000 Watts Peak Power / 500 Watts RMS Slim Under-Seat Active Power Audio Car/Truck Angle Trunk Box Sub-woofer SUB/Supply Voltage: 11-15V DC : Electronics
Amazon.com: PyleUsa 10-Inch Low-Profile Amplified Subwoofer System - 900 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs - PPLBX10A :
Emphaser under-Seat Subwoofer Compatible With BMW 3er E90,E91,E92, E93,F30, | eBay
Best Under Seat Subwoofers - Bump Up the Mood - YouTube
SK-SW8A | 8" 150 WATT COMPACT POWERED ACTIVE LOW PROFILE UNDER-SEAT CAR SUBWOOFER - Down4Sound Shop