Cerwin-Vega TS42 1000-Watts 1 x 21 Inches Passive Subwoofer Frequency Response: -3db 35 Hz - 215 Hz/-10db 33 Hz - 230 Hz Power Capacity: 1000W (RMS) 2000 Peak Recommended Amplifier Power: 1500 w - 2000 w @ 8 ohms Input Connectors: (2) Neutrik Speakon Sensitivity (1 w/1 m): 108 dB