Hi folks! I too have been on the original wait list for this product and have been biding my time patiently. I have the UMC as well and I think it is a really good product but certainly not in the league of what has been announced with the XMC. There is a emo-cast that goes into a lot more detail about what is going into this architecture that I recommend. This emo-cast is a solely dedicated discussion on the XMC.
http://emotiva.com/podcasts/012712/EmoCastMix.mp3
I would not take the renderings too serious and it is not final and yes the analog video is gone. I hope they do add the second HDMI out for others as I read so much about how important it is but I do not need it.
The system controller is a large ARM9 processor that will future proof the platform for many years. Here is some information on it.
ARM9 Processor Family - ARM
The TI DSP work and decoding is being done by a partner company called Momentum Data Systems as a long term strategic relationship and of course Tact on the RCS. The Emotiva engineering team is retaining the audio and analog work plus putting it all together.
The TACT can be used in auto mode or for the tweakers or you can change settings on the fly with an APP for the GUI that will let you look at before and after corrections. You might have missed that you can sit on your couch pull up the GUI and tweak in real-time and listen to the effects. I mean dang Betty!
Probably the coolest thing about Emotiva for me continues to be the accessibility to their engineers where anyone can call and talk with them. 5 year warranty too always gives me comfort. Believe me I have owned 3 different Denon's and I ain't going back. My B&W 802 Speakers are worth more than any of my other audio gear and so I dig the value I get too.
The high current headphone amp built in is a TPA 6130 IC with separate volume control that is pretty cool. You can set volume for headphone independent of the main volume.
I am really glad that I am on the pre-order and get the 40% discount plus can keep my UMC. If I sold the UMC, The V-link Asynchronous device I use for my laptop (the XMC will be an upgrade based on the specs and will be Asynchronous with 24/192 from XMC and only 24/96 on the V-link), the Headphone Amp, then I am pretty much having no out of pocket.
The emo-cast ends by stating all the heavy lifting with TACT and Momentum Data Systems is complete. MDS has pretty much eliminated jitter with their work on the DSP part. They also added a loudness button because of the Fletcher-Munson Curves that will allow a correct implementation for that feature.
There is really just too much to type but I highly recommend listening to the emo-cast.
In closing I do agree that anything new like this will get its justifiable due scrutiny and speculation until it ships and folks can share actual experience.
It is nice to have options folks and product release notes like this keep me jazzed while I continue to patiently wait.