"I had not noticed the sort of digital buzziness to the tone (most noticeable when playing multiple octave voices together, voices of the same octave doesn't matter much), until one of the dancers mentioned "what's up with all these digital accordions? I hate the sound. It's rough on my ears." And after that, I started hearing it."


I have not noticed digital buzziness. I often play mine through headphones and I have always noticed how clean it is - maybe TOO clean. I kinda like the light reverb that they add to the sound - only noticeable in headphones.

Maybe the problem you are having is that the gain might be too high on your mixer and it is starting to clip. Does you board have a little light that goes on when clipping is occurring?