There is almost nothing about AE by Cary at all. I own the plain (modded now) AE-3 preamp which uses 6SN7s . I couldn't even find the model you are considering. Are you really looking for the AE-211 Monoblocks or something like it, that is a standard Cary product. Those are SETs . You might have more luck if you get the model name correctly. I am not trying to scold you forgive me if it sounds like that.
AES SET2 monoblocks by Cary Audio
I'm currently using a Cary Rocket 88r amp in triode mode with Serie Reference 3a MMC speakers. I'm very happy with this combo but I would like to try class A amplification with the 3A's and there's a pair of these mosfet amps available locally. Can any of you give me some info on these before I pursue their purchase; there seems virtually no reviews available on the Internet.