It looks like this thread has run it's course, but since I have taken the time to read the entire thing, I'll post my impressions of the ODAC.
I originally found this forum while searching for a DAC, and I've been coming back ever since to read the board. First, I'll start with a little background. I've been actively listening to music for more than 20 years now. I say actively listening because, prior to that, I just took it for what it was and was not really concerned with the quality of the reproduction. During college, I worked in a high-end (read, expensive) boutique audio store. It was there that I came to know all the big names in the high-end game. I've been lucky enough to spend time with speakers and amplifiers selling in for the big bucks. It was also there that I first began to notice that no matter what the manufacturer's representative that came to the store to train us said, I just couldn't hear all the magical things that they were talking about.
Their latest and greatest high-dollar interconnects, preamps, and amplifiers pretty much sounded the same to me. I just chalked it up to inexperience.
It was only later when I became the defacto in-store installer that I realized that maybe I wasn't crazy after all. When new gear would come in everyone would wait around impatiently for me to get it set up. Then they would sit around an expound on the most wonderful sound that they had ever heard. Oftentimes I would take this opportunity to pull little pranks on them. I would secretly connect a Marantz receiver in place of the big and bad Bryston amp. Then I would connect it with the cheapest interconnects that I had at home. The we ran the wiring in some of the setups even allowed me to substitute 16 gauge lamp cord for the Kimber speaker wire. The owner would listen to his favorite setup this way for a least an hour a day, and he never noticed when I would make the substitutions.
So, what does this have to do with the ODAC? First let me say that while I do enjoy listening to headphones, I do most of my listening on my two channel setup with KEF 105/3 speakers. They are often described in similar terms as the ODAC. Clinical, analytical, ect. Which to me means transparent. I also have a fondness for pro-sound equipment. Especially the fanless amps from the 80's and 90's like the Yamaha P2200. I like them because the manufactures give pages upon pages of technical specs and measurements taken at all levels of output and under all loads. They don't just simply list the the frequency response and distortions specs at a single, undisclosed output. I like the objectivity.
That objectivity is exactly what I like about the ODAC. It is a DAC after all. A digital to analog converter. No more, no less. It is not a "DAC-Q". A "digital to analog equalizer" like so many others try to be. If I want EQ, I will simple fire up the EQ. Preferably a parametric one.
I am unable to comment on the "sound" or the "soundstage" of the ODAC simply because it does not produce those things. It just converts the digital signal from my computer so that my amps can power my speakers.
I do have more to add, but my time is limited. I'll be back in a few days.