Description/Format Active Dynamic-Drive IB subwoofer system Drive Units 1 x (15") 380mm cone long-throw Frequency Response 30- 120Hz ±3dB Amplifier Power Output 400W Peak Power Output 850W Line Input Sensitivity 200mv for maximum output Crossover Range 30 - 150Hz Inputs Stereo Line In (2 x RCA Phono) Mono (LFE) Line In (RCA Phono Input Impedance Line Input 10kΩ LFE 5kΩ Signal-to-noise ratio (S/N) 85dB Avg. Max Output @1m 124dB Features Phase inversion, Auto on-off Dimensions Height: (540+58)mm(with feet) Width: 500mm Depth: (540+15)mm Net weight 27kg Accessories IEC power cord