Type - coaxial speakers Number of lanes - 2 Power - 50W (nominal), 300W (maximum) Sensitivity - 85 dB (W/m) Frequency response range - 70-21000 Hz Impedance - 4 Ohm tweeter: Dimensions - 25 mm Diffuser material - PET Magnet - ferrite Woofer: Dimensions - 170 mm Diffuser material - polypropylene Suspension material - rubber Magnet weight - 226 g Installation depth - 52 mm Mounting hole - 140 mm Basket material - steel