Eton UG USB 8 Underseat 8" Active Amplifier Subwoofer Enclosure + Remote 160w
Eton USB 6AR - Very Compact 150 mm / 6 Inch Underseat Active Subwoofer for Cars and Motorhomes, Powerful Active Underseat Bass Box with Amplifier, ...
BassPro SL2 | ["Add high-performance bass with a low-profile woofer enclosure", "Self-Powered, 8\" (200mm) low-profile under seat subwoofer system"]
ATOTO CS-101SW 10" Ultra Slim Active Car Subwoofer, Under-Seat Powered Subwoofer Car Audio 400 Watts with Built-in Amplifier, Low & High Level Inputs, ...