I thought yoga studios were supposed to be relatively quiet and serene, not loud and thumping. Now if they double as an aerobics studio as well, then I think you're on the right path, but I prefer AKG microphones, since I can get them from the same Disty.

If it is strictly for yoga, I would go with multiple in-ceiling speakers (if possible), or smaller surface mount. Maybe some Control 28's or something like that.

As far as mixer and power are concerned, I'd just have to see what is available. I have found that right now you can't be too picky. JBL CDI amps are on backorder until March or April next year.

Atlas seems to have good stock on most of their stuff, but I still prefer JBL/Crown when I can get it.