I also have not heard the Anthem receiver line up. However, I have owned an Anthem AVM70 4k processor and am currently running the AVM90 in my dedicated HT. The AVM70 is a good piece of gear. The AVM90 is in a whole different class.
Not sure how the Anthem receivers work, but if you want to use a separate DAC, then either the AVM70 or 90(and maybe the receivers as well), is not what you want. In order to use their ARC Genesis room correction, you need to use the internal DAC that comes with the 70/90.
My room is 90% movies and 10% 2 channel. However, even in 2 channel, you are going to have to spend some $$ to get better than what the AVM90 offers. If you plan on using the DAC that comes with the receiver, and if you like the Anthem sound, you sould be fine with any of their receivers.