Configuration: 2-way Active speaker system Freq Response(-10dB): 68-20 KHz Sensitivity (1W@1m): 96dB Nominal Impedance: 4 ohms Amplifier: 100 Watts HF 25 Watts dispersion(HXV): 90°X45° Crossover Freq: 2.5 KHz Low Frequency: 8" Woofer High Frequency: 1" titanium diaphragm compression driver Input Connector: USB MP3 Player/MIC/RCA Dimension(WxDxH): 330 X275 X 475 mm