Configuration: Vented subwoofer Freq Response(-10dB): 80-125Hz Sensitivity (1W@1m): 99dB Nominal Impedance: 8 ohms Rated power: 500 Watts Max. Power: 1000 Watts dispersion(HXV): / Crossover Freq: / Low Frequency: 18" SUBWoofer High Frequency: / Input Connector: 1 X Speakon (4P) Output Connector: 1 X Speakon (4P) Dimension(WxDxH): 600 X 575 X 618mm