This little Nad amp is good but the volume level is such a crap. While you turn the volume knob just a little, you going from no sound to a high live rock concert volume.
Didn't like it with my M80.

Nad C356 DAC & C515
Axiom M3v3
Grant Fidelity RPF-120 MKII
Analysis Plus Black Oval 12&10
JRiver 19