... 5.One year warranty CVR dual 12" 20000w outdoor band line array (W-8) Features--Detachable front dolly panel ... manufacture and supply a compreh ensive range of professional equipment including line array system, proloudspeaker, subwoofer minitor speaker and power amplifier. ... 218/CV-218B , which brings superb line array performance to large stadiums, big outdoor concerts, commercial events, etc. ModelW ...