Also having noise issues, just emailed Make Noise support.
I’m getting a mix of the different characteristics described by @starthief and yourself - mine is silent when totally dry and no signal passing (no floor), but when I pass a sub-audible bump of signal in, still 100% dry, I get gated hissing noise - not super digital sounding, more like white noise. Mostly not getting noise when wet except when color is turned all the way to the right.
That said - I don’t think this is an issue with gain staging for me, the noise level is just too loud relative to the levels I can generate within my rack; I do wonder if there is some variance between units here, because I demoed a Mimeophon extensively at my local shop and didn’t notice anything like this.
I’d be interested if you or anybody else on the thread gets a resolution from Make Noise - either some kind of case/power fix, returning the unit, etc.
I’m probably going to take mine back to the shop, and A/B it against the demo unit and see what I find.