D2v vs Classe ssp800, which would you prefer?

Yes. It's what Kal Rubinson recommended for using with Classe's manual EQ. And since he has used it and reviewed it I take his word for it.
I have heard several people say it sounds let's digital and more natural.
I was never able to actually directly compare the two, but I have heard glowing reviews of Classe's sound quality from several owners.

JWM, I want to be clear, the XTZ is a room Analyzer.

The XTZ measures whatever you feed it to. You can feed it to one channel, some channels or all channels. For EQ, use a single channel to develop the filters but pairs/multiples to confirm results.

The results with the XTZ Pro II were great with
The Classe. Sounds so much better!

I briefly heard some Classe equip (2 ch? ...multi ch?) playing stereo music at a CES demo in the Venetian this past week. I wasn't there for the equipment, and briefly ran in and out of the room to get to the next stop on my list. What I did remember, besides what exactly I was listening to, was how refined and "hi-end" sounding the setup was, and what was coming out of the system, and was nicely assured of the prowess of what Classe still offers in electronics! Yes, the sound was overall superb.
I presume the same passion level of excellence would be meticulously passed on to the hi-end only company's other products, regardless, no doubt! That said, the assumption is that you will be treated to no less when it came to high end sound reproduction from the SSP800, yes?!
My presumption (only mine) is that a safe bet would be that the Classe likely trumps the potential of the Anthem, all things equal and considered.