Infinity, High-Performance Mono Class D AmplifierSpecifications: High performance, mono Class D subwoofer amplifierMax Power2600W Peak Power Output, 21000Wrms x 1, <0. 1% THD+N Power Output, 4700Wrms x 1, <0. 1% THD+N Signal to Noise Ratio>=80dB (ref 1W output @ 2) High Efficiency, Low Distortion Class D DesignActive LPF, variable 32 320HzVariable Line Level and Speaker Level Inputs (0. 2 to 20V input range)