Donny, as you know, I've got (or had - gave to grandson) a M-10 and found it too 'digital' (ie. not 'warm') for my liking. It was super clean (maybe too clean) and loaded with nice features; I just didn't like the sound of it. I know I'm in the minority as most owners are very happy with it. Certainly a tube amp paired with the right speakers would warm it up but that's too much money and hassle to prop up a mixer in that price range (IMO). Still, it was a good buy (SDOTD) at the time.

chas