Package:- Taramps TS400x4 400w 4 Channel AmplifierCharacteristics:- Max Bridge Power at 13.8 VDC - 4 OHMS - 400 W RMS (2 X 200 W RMS)Input Sensitivity: 160mV- Total Harmonic Distortion (THD): 0.05%- Signal / Noise Ratio:> 90dB- Damping Factor:> 300- Frequency response: 20Hz to 30000Hz- H..