4-Channel Car Audio Amplifier Description. Output Power (RMS) IC. At 0.1% THD at 4 ohm 240W x 1. 14.4VDC at 2 ohm 300W x 1At 1 ohm N/A. Output Power (MAX) 1400W. Channel Separation 50dB. Frequency Response 20 - 250Hz. Signal to Noise Ratio 95dB. Size (L x W x H) 200 x 156 x 47 MM* 4 Ohm Stable Stereo Amplifier* 4/2 Channel Amplifier* USD/SD MP3/WMA Input* FM Broadcast Input* Remonte Panel Control* LED digital Input* IC Circuitry* Variable Input Level Control* Protection Circuitry against Low impedance, Short-circuit and Thermal