I strongly believe you'll get much better overall dynamics and slam going through the outboard processor for DD and DTS master movie sources, such as through the Anthem! (vs dirrect analog out of the Oppo). Yes, also, convenience of source switching, plus ROOM CORRECTION!(and absolute must have!!! - small rooms are bass sound wave roller coasters!)
.Anthem will sound great, no matter how you process through/with it, and it simplifies things.
Find a deal on one, and forget about all the audiophile tricks and short cuts, too! Help a wife out...