I'm not so sure that this is helpful in your decision, but I have a Roland U20 and I am NOT disappointed in it's sound quality live on stage. I just recently did a solo fly on New Year's Eve live on stage with the sound panning randomly left and right and it was absolutely the most haunting thing I've ever heard! Several audience people were stunned into silence. I really like this board a lot, even with just the standard presets being used as I don't have any cards around to plug in and create new patches with.