The Pioneer 09 does not do SACD so it will be either from Oppo, Denon, or Marantz.
I pick the new Marantz.
It would be fun to think that Theta would apply their skill and handling of a totally Theta mutichannel analog audio section with Theta DACs and Theta fully balanced 7.1 channel analog outs paired with the Denon video section. Just put it all in a taller, very shiny, metal case and Bob's yer uncle.
Then, make a stand alone, fully balanced, Theta 8 shooter pure analog multichannel preamp to attach to.
How hard could that be and how long would that take? Bet it would sound killer.