Diablo DB-4500D 4500W Max Monoblock Class-D 1-Ohm Stable Car Audio AmplifierBRAND NEW DIABLO DB 4500D MAYHEM Series 4500 Watts Max Power 1 CH Monoblock Class D 1 Ohm Stable Stereo Car Audio Amplifier Specifications: RMS MAX @ 4 Ohm (<1% Distortion): 575 1125W RMS MAX @ 2 Ohm (<1% Distortion): 700 2250W RMS MAX @ 1 Ohm (<1% Distortion): 1800 4500W Input Level: 0. 2V 6V LPF: 50Hz 250Hz Subsonic Filter: 10Hz 60Hz Bass Boost Level: 0 12dB Signal to Noise Ratio: >80dB Minimum Load: 1 Ohm Dimensions (LxWxH): 12" x 9" x 2"