KD-10 Single 10 inch Active Frequency Response:50Hz-20Hz?dB Sensitivity(IW/IM):102dB Maximum sound pressure:125dB Rated Power:50W Nominal Impedance:8Ω 10 inch 100 Magnet red voice coil + 2 X 4inch clarion speaker（front adjustment） Height X Width X Depth:720 X 340 X 630 mm Weight:19Kg