Configuration：2-way Active speaker system  Freq Response(-10dB): 50-20KHz  KHz Sensitivity (1W@1m): 97dB Nominal Impedance: 4 ohms Amplifier: LF 150 Watts HF 30 Watts dispersion(HXV): 90°X45°  Crossover Freq: 3.5KHz  Low Frequency: 12"Woofer  High Frequency: 1.35" titanium diaphragm compression driver Input Connector: USB MP3 Player/MIC/RCA Casing Dimension(WxDxH): 425 X 345 X 645mm