Mackie SRM1550 1200W 15&Prime; Portable Powered Subwoofer 1200W of power paired with a 15 custom high-output woofer with 3" voice coil delivers gig-level volumes with room to spare Road-ready "Built-Like-A-Tank" design with 18mm, internally reinforced poplar cabinet and steel grille Integrated digital crossover with variable control and presets for Mackie SRM350 and SRM450 loudspeakers Stereo XLR inputs plus stereo XLR full-range and high-pass outputs Extremely portable design weighing in at only 65.5 lbs. / 30.2 kg.