The 900N is a highperformance power amplifier for balanced or unbalanced stereo audio signals. Either input can deliver a speaker output of 10 watts RMS power per channel into a 4 load. Key Features High Efficiency – Class D operation. 10 Watts RMS per Channel S/N Ratio – 55dB. Controls – Volume knob, On LED. Special Note – Before turning on the 900N, make sure the volume is turned down to the minimum. Compact Kramer TOOLS – 3 units can be rack mounted side-by-side in a 1U rack space with the optional RK-3T rack adapter.