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, ...
Audio Visual World - Kenwood KSCSW11 - Aluminum enclosure loaded with 8-¼" x 5-1/8" Subwoofer, Built-in amplifier 75 watts RMS, Wired Remote Control, Variable low-pass crossover (50-125 Hz), Preamp (RCA) and Speaker
BassPro SL2 | ["Add high-performance bass with a low-profile woofer enclosure", "Self-Powered, 8\" (200mm) low-profile under seat subwoofer system"]