4 channel amplifier klasse ab rms power per channel at 4 ohm 85 watt rms power per channel at 2 ohm 150 watt series hifonics vulcan frequency response 5 50000 hz damping factor 200 signal noise ratio 90 db eingangsempfindlichkeit 0 2 6 distortion factor 0 05 input impedance 47 kohm