Specifications: System: System Type: Self Powered 15\' subwoofer Maximum SPL Output: 131 dB peak Frequency Range (-10 dB): 37 Hz - 113 Hz Frequency Response (±3 dB): 44 Hz – 91 Hz Input Connectors: Two Balanced female XLR/ 1/4\' combo connectors Input Impedance: 20K Ohms (balanced) Signal Indicators: Limit: Yellow LED indicates peak output has been reached and dsp limiter is acting Signal: Green LED indicates signal present Power/Standby: Blue indicates system has power and ready to pass audio, Red indicates system has power but is in a power saving mode and will not pass audio. Dynamic Control (Input): dbx Type IV™ limiter circuit Internal Crossover Frequency: 100 Hz DSP Loop out Crossover Frequency: 120 Hz analog 24 dB filter slope Amplifier: Design: Highly efficient Class-D amplifier Power Rating: 1500W AC Power Input: 100V - 240V