I know nothing of the amp you happened to mention, but from experience, there are a few of us here that are operating on Emotiva amps and love them with our Aperion speakers.
Judging from a quick Google search, it seems you're in the market for something considerably more high-end. There will be some amazing amps in your price range that will suit your speakers greatly.
I don't know all of the science, but from what I've been reading, amps will have a 4ohm and an 8ohm rating as a matter of reference, but really, they operate all over the spectrum. As I said, a few of us are using amps that having "ratings" at 4 or 8 ohms but operate our Aperions just fine. Great, in fact.
There are some serious discussions on AVSForums.com about high-end amps. You might check that out also.
Welcome to the forums.