I have not tried the Ayre, but I do own a pair of Enterprises (which drive my Thiel CS3.6's). I had set off on an amp quest which I thought would end in the purchase of a high end Krell or Edge amplifier, when I had an opportunity to audition the Enterprises. What sold me on the Theta's was the incredible soundstage width and depth, the separation of multiple instruments, and what I consider to be a very musical midrange and top end (for SS amps, of course). The low end is not Krell-heavy, but it was every bit as good as an Edge NL-10, and again very accurate - upright bass sounds like upright bass, electric bass sounds like electric, etc. I know that Mike Fremer's review of the Enterprises was somewhat critical of certain aspects of the them, but if you really read his review, his main complaints seem to fall within the "tube vs SS" realm. All in all, I thought his review was quite favorable. What was also important for me (as I will be running these amps inside a cabinet until my kids are a bit older), the Theta's do not run hot at all.
I have only heard good things about the Ayre, so I would think that the V1x would also be a good route. But, for what it's worth, I am a very happy Enterprise owner (and the CS3.6's are not the easiest speaker to drive).
I have only heard good things about the Ayre, so I would think that the V1x would also be a good route. But, for what it's worth, I am a very happy Enterprise owner (and the CS3.6's are not the easiest speaker to drive).