Thank you … yes, I will report my (subjective) findings when I re-install the nDAC. but it may be a few more weeks.
I’m enjoying the (new) NDX 2 so much at present that I’m almost frightened to upset the status quo 
I am commenting* upon the differences re: the (old) NDX but that is not so relevant to your post, other than, yes, I have my Pioneer BluRay digital out routed to the NDX 2 for music concerts … these work very well. I’m less satisfied with films where the sound mix (even output in 2 channel stereo) can sound harsh and unrealistic. But this has been limited to only a few examples, so far (time spent listening to music … not watching films!)