I got a guitar, with 3 pickups, one going to a tube preamp one to a pitchshifter and there is a piezo going to a piezo preamp. the pickups are summed in a little mixer that goes to axoloti's right input.
on the left input there is a dynamic mic.
I'm right now checking each device for noise. I realized that the mic input is quite noisy (gain of that channel is set to 27db). So propably using a proper mic preamp might be better?
Also the mixer seems to have a little hiss. Generally speaking I'm getting to point where it sounds a lot quieter. The power brick thing might have improved the whole setup quite a lot.
I also realized that the reverb in my patch makes weird noises. Somehow when the allpasses are set to anything lower as x 1,0 I get a weird sound.
p.s. pickup hum / interference seems to be quite low.