Configuration: compact vented sub passive system Freq Response(-10dB): 40-150Hz Sensitivity (1W@1m): 97dB Nominal Impedance: 8 ohms Rated power: 500 Watts Max. Power: 800 Watts Crossover Freq: 150 Hz Low Frequency: 18" Woofer Input Connector: 1 X Speakon (4P) Output Connector: 1 X Speakon (4P) Weight: 35.0kg