Try unplugging your Nad for a few minutes. Plug it back in and see if that solves the problem.
When I turn it up, it turns down
I have a NAD M3 and have this weird problem. Whenever I try to crank the volume up, it turns itself down. It's very annoying. I have to fiddle with the nob for a little while and then it FINALLY turns up. WTF? Has anyone else had this problem? How to fix? Please advise!