Hi James,
I’ve shifted your post to Tinkering for the moment as I suspect that is the audience that can assist most quickly. I’ll also flag @brian as he may have some suggestions about the best tools in the box for active crossovers.
I have to confess to not knowing a great deal about Procedural EQ or channel mapping, but this statement seems to be the point of departure between Roon and the non-Roon experiences. Can you expand on how you know the above ?