I read the Audiophile Perfectionist journal last year that included both of the products that you are looking at in one of their journals. This will not help as they liked both the Ayre K1xe and Aesthetix Calypso extreemely well. I ended up buying the Calypso a few weeks ago as I wanted a little more warmth in my system. You might try talking to dealers that carry both products.
Good Luck
Good Luck