Configuration: 3-way passive speaker system Freq Response(-10dB): 36-20 KHz Sensitivity (1W@1m): 99dB Nominal Impedance: 8 ohms Rated power: 500 Watts Max. Power: 100 Watts dispersion(HXV): 60°X40° Crossover Freq: 600, 3.5 KHz Low Frequency: 15" Woofer Mid Frequency: 8" Mid High Frequency: 1.75" titanium diaphragm compression driver Input Connector: 1 X Speakon (4P) Output Connector: 1 X Speakon (4P) Dimension(WXDXH): 514 X 445 X 924mm