The 10″ down-firing V1020 subwoofer uses a high power amplifier (designed by BASH technology) which explodes with 160 RMS watts (350 watts peak) of undistorted bass! It incorporates a heavy-duty long excursion 10″ woofer with high power magnet. The V1020 includes a patented “Venturi” port to eliminate port noise often heard from other subwoofers when playing demanding music and videos. It features an adjustable crossover, adjustable volume control, automatic signal sensing, high level inputs & outputs, and both Dolby Pro Logic & Dolby Digital/DTS LFE inputs.