AJ,
The XD9 sound simply mahvelous through any PA I ever tried. I think Donny was more upset with the total difference of the navigation, and less tweaking available because of all the mixer options and separate EQ's on the Yamaha. I think sound-wize, the XD9 was a dfinate winner. I agree with Donny about some of the button places and menu requirements though.
Call me when you need me !