... , 125 W Rated Impedance, 8 ohm Sensitivity, 98 dB Frequency Range, 500 Hz- 5.5k Hz Pa speakerPM-2520SPECIFICATIONS Size 8 ... 125 WMaximal Power 250 WRated Impedance 8 ΩSensitivity 98 dBFrequency Range 500 Hz- 5.5k HzBasket Material aluminiumGasket Material Surround Material ... φ188ID90HDφ218-4×M5 PA PM-2520 high quality middle range pa speaker