Once the room is complete, I will build absorption panels at first reflection points. My setup will allow me to tweak the treatments as necessary.

I was more concerned with standing waves in the two front corners. In the past I've made corner trap style bass traps, but with corner loaded speakers that won't be possible, at least not in the bottom front corners. I guess I will just use trial and error.

I will have 2 separate subs so hopefully, along with bass trapping, I will minimize room mode effects.

Thanks for the replies.