Configuration: Vented subwoofer Freq Response(-10dB): 35-3KHz Sensitivity (1W@1m): 101dB Nominal Impedance: 4 ohms Rated power: 800 Watts Max. Power: 1600 Watts dispersion(HXV): / Crossover Freq: 80-125Hz Low Frequency: 18" x 2 SUBWoofer High Frequency: / Input Connector: 1 X Speakon (4P) Output Connector: 1 X Speakon (4P) Dimension(WxDxH): 1236 X 575 X 645mm