UMC-200 Phantom Center(?)

[barrynj]

So my UMC-200 doesn't seem to want to create a Phantom Center with DTS-HD or Dolby TrueHD. I have to set the "Secondary Audio Track" on my Oppo to "Active", which then sends the regular DTS or Dolby Digital sound track, and the UMC will then generate a phantom center. Is there a setting I'm missing somewhere, which will generate the phantom with the lossless codecs from the blue ray player?

Thanks, Barry