Right now I’m running OS 4.1 on the Nova which I believe is latest (correct me if I’m wrong).

One thing I realized last night while doing some more trouble shooting is that the noise is only audible when the Effects Send knob is turned up! In fact, it increases in volume as you turn the knob up. Now it doesn’t matter if you have an effect selected or if you’re on the menu screen; the relationship between knob and noise seems completely independent of the parameter selected for the knob!

This is a little weird, and I don’t know what to think now…