OK, here is the DVD-A1UDCI processing path, you see 5 32 bit AKM4399 (Esoterics use them) DACs, just like in the Marantz UD9004 clone:

Now, the MVP881 uses 24bit DACs, so no, it is not a clone.
The MVP891 uses only 4 8 channel 32 bit DACs, no name given.
Studying the PCBs on the Denon, Marantz, and Mac 891 one sees a difference, a lot more plastic components on the Mac, less caps, smaller ones too. One HDMI output only, albeit 1.4(3D).
So, needless to say for an audiophile the order is:
UD9004>A1UDCI>MVP891
Knowing that 3/4 of UD9004s are former refurbs, given a faulty Denon tray chassis implementation design, we can safely say that if one can put up with the poor BD (30% or so cannot be read) performacne of the A1UDCI, that player is still best bet.
Hopefully we will see better products from the now liberated fro the D&M Holdings McIntosh.
As for the mass hysteria spawning Oppo 105, it only uses one DAC for 7.1 single ended. As for the newbs fascination with DSD and MLP/PCM HDMI transmission, no processors currently boast the 7.1 single ended DAC power of the A1UDCI and clone.