Subwoofer power rating 200 watt effective output 300 watt system 1 way system principle active frequency response 22 200 hz crossover frequency 50 200 hz amplifier type digital colour white housing material mdf enclosure control feature adjustable transition frequency special features sc technology design front firing subwoofer speaker enclosure bass reflex number of subwoofers 1 bass chassis 260 mm subwoofer material woofer aluminium speaker