I ended up adding a MiniDSP 2x4HD and using REW to create my sub correction curves. I set distances, crossovers and levels manually in the Anthem and removed any ARC settings.
Hi @bjp9738
I never tried Anthem ARC before but I think you didn't yet have access to Genesis.
I will say that miniDSP and ARC Genesis is a completely different ballgame. What I love about miniDSP is the ability to personally select every single filter, not to mention that the delay measurements were far more precise than with my AVM 50.
With the MRX and Genesis I have achieved a happy balance between not doing it all myself and getting it to do what I want via the tilt and bass boost settings. It's more of a happy partnership approach, where I let it do what it's good at and then color the final sound to taste. I lack however the ability to go in and tweak any given part of the ARC curve but the final results for me have worked out really really well.