I am thinking of picking up the new Sonos Amp to power my 3rd party bookshelf speakers and sub, but not sure about the virtual center for watching movies. If I didn't like the way the virtual center sounded would I be able to simply add a Sonos Playbar or Beam to this set up? In this arrangement, I would assume optical connect from TV to Playbar and then bond it with the Amp. Is this possible?