I have 2 quick points to make about the DC-1. First, for anybody wanting to test it against a Gungnir, I found that they both use drivers from the same company (C-Media) and that confuses the heckll out of Windows. I had the Emo drivers installed, and when I went to install the Gungnir drivers, the setup wanted to uninstall the Emo drivers, not install the Gungnir drivers. So I did. Then had to rerun the setup to install the Gungnir drivers. I tried to get both DACs to run from those drivers, but was not successful using JRiver. So I'm not sure how to compare the two DACs side by side on the same computer (I did it by proxy... the Emo sounded like the DM Source and the other "indistinguishable" DACs to me, and so did the Gungnir, so I judged them to sound the same). On the other hand, I will admit to not being the world's greatest expert in DACs, drivers,Windows or JRiver, so there's a good chance that this was operator error.
Note also that Emo sells refurbed units, usually for a significant discount. Refurbs carry the full warranty, but you can't return them for a refund, only for replacement. For those willing to take that risk, or who have heard the DC-1 and/or know they want it, they might be able to get a refurb unit later for a price close to the holiday sale price, which we might never see again... but who knows, Emo has 2 sales per year (July 4 too) and they might put it back on sale... Or not. Pay your money (or don't) and take your chances.
Hope that info is helpful.