28 cm (11") Subwoofer. Subwoofer with fiberglass cone. Sturdy and robust Aluminum Enclosure. 1 x 150 Watts RMS, 1 x 300 Watts Max. Both models is equipped with high-level inputs and auto turn-on. Lowpass 50-150 Hz, Bass Boost 0-12dB @ 45 Hz.
eBay