Deemic
Inspired
I've noticed the same thing through my studio monitors when I cycle power to the AxeFX III, where-as before, it was completely silent.Yes I’ve noticed mine now makes a DUUUurrrrrrrrrr sound through my CLR when I power the AxeFX off.
I don't believe I've changed any settings on my other hardware or software. It's not extreme, but it's definitely there.