Thank you, Mattkimb96 and Theo, for your input. When you get your C-5xe (Theo), please update us on your impressions. And if you get one too, Mattkimb96, it would be great to hear from you. (BTW, it's great to hear that Ayre offers a black faceplate for the C-5xe; the CX-7's come in only silver---as far as I know.)
In the meantime, I will wait until I can get a side-by-side audition of both machines, hopefully in my own system.
Any others who've heard the 306 SACD next to the C-5xe...?