Sony XM-N1004 in-Car Amplifier (Black) Sony XM-N1004 car stereo power amplifier features : High power output automatic thermal control efficient cooling design high quality components lpf (low pass filter) , HPF (high pass filter) single sided connections, specifications : Channel configuration : 4ch, 3ch, 2ch power supply : Mosfet power supply high pass filter , slope : 80Hz , 12DB, oct low pass filter , slope : 80Hz , 18DB, OCT frequency response : 5-50KHz signal-to-noise ratio : 100DB total harmonic distortion (1KHz) : 0.05 percent line in: Input sensitivity (v) : 0.3-6 gold plated connectors : Yes current drain : 36a load capability : Yes (2Ohm) tolerance : +0, -3db weight (Kg) : Approx. 2.7Kg package contents : 1 x Sony XM-N1004 car stereo power amplifier.