Configuration: Vented subwoofer Freq Response(-10dB): 38-2.5 KHz Sensitivity (1W@1m): 99dB Nominal Impedance: 8 ohms Rated power: 600 Watts Max. Power: 1200 Watts dispersion(HXV): / Crossover Freq: 80-150Hz Low Frequency: 18"x2 SUBWoofer Input Connector: 1 X Speakon (4P) Output Connector: 1 X Speakon (4P) Dimension(WxDxH): 970 X 730 X 665mm