Application Range: Ballroom, large conference room, lecture hall, performing hall, small and medium-sized performance, multi-function hall, auditorium, sports hall Specifications Drivers LF: 2*6.5" /HF:1*1.75" Rated Power 250W Rated power 450W Nominal impedance 16 ohms Frequency Range 75Hz-19KHz Sensitivity(1m/1W) 97dB MAX SPL) 124dB Dispersion(HxV) 100°*10° Construction Enclosure Material Plywood Enclosure Grille Air permeable cotton in black hexagonal hole dust-proof steel mesh Finish Black environmentally friendly water-borne wear-resistant paint (color customizable) Dimensions(W*D*H)mm) W548*D320*H180 Net weight(Kg) 17.3KG