Actually on closer inspection I've realised it only outputs stereo all of the time. Midi config is correct 6 channels 24 bit 192,000 as previously noted but I've have no surround for example if I listen to Spotify I only get left and right along with anything else non DTS/D.D related in other words Dolby surround encoded I only get stereo.

Using the appropiate player for 5.1 DD MKV is still get stereo.

Having D.D/D.T.S. is not my greatest concern most of that will go through the Oppo but I cannot figure to why sound won't emerge to all of my speakers and if infact anyone else has recently purchased a 2011 Mac Mini connected to a HD621 only to have the same outcome?

Cheers Justin.

818.3
, DSP8000SE, MacPro (the little bin), Virgin box, Sony XR77A80K, Missing Link Reference HCX cables, Townshend speaker support...