The 12 in., 430 watt BIC America V1220 Down-Firing Powered Subwoofer for Home Theater and Music offers unsurpassed performance at its price! It incorporates a high current 200 watt (430 watts peak) amplifier (designed by BASH Technology) combined with a 12 in. heavy duty long-throw woofer and heavy duty magnet. The patented Venturi vent eliminates port noise (often heard from other subwoofers when playing demanding music and videos). The V1220 also features an adjustable crossover, automatic signal sensing, high level inputs and both Dolby Pro Logic and Dolby Digital/DTS inputs.