Configuration: 2-way Active speaker system Freq Response(-10dB): 65-20KHz Sensitivity (1W@1m): 96dB Nominal Impedance: 4 ohms Amplifier: LF 100Watts HF 25 Watts dispersion(HXV): 90°X45° Crossover Freq: 3.5KHz Low Frequency: 8" Woofer High Frequency: 1" titanium diaphragm compression driver Input Connector: USB MP3 Player/MIC/RCA Casing Dimension(WXDXH): 300 X 250 X 445mm