Mcintosh and their dealers have said that the MVP881 has no connection to the denon DVD-A1UDCI but the pictures and specs prove otherwise.
Here is the back of the MVP881.
Here is the back of the DVD-A1UDCI.
We know that they units use the same digital, video, DSP's, DAC's as the denon so when used as a HDMI player it will be 100% the same. What "changes" mcintosh has made to the power/analog sections remain unkown.