Finally got mines. Briefly trying it with USB for headphone purposes before moving it to the monitors rig. A couple of things I noticed with D2000:
1) Mute with headphones doesn't mute the sound completely. The volume is simply lowered
2) Noise from USB when in Asynchronous mode. When I changed it to synchronous, the noise went away. The DC-1 was connected directly to the wall. Using the USB output from Macbook Pro Retina laptop which has one of the cleanest USB ports I've tried so far on computers. Not a big deal with the whole synch vs asynch mode as it sounds fine with Audirvana Plus.
3) Headphone output is surprisingly quite decent. I was expecting a whimsy output on this. It's punchy with the D2000. Maybe more so than the output of the DM Source. Although the DM Source is super tight and flat, not to mention it has endless sub bass extension with loads of texture.
4) Knobs and volume control - DM Source takes this one. I like the hard defined positions of the DM Source. I can control it much better for fine tuning despite the Emotiva having 0.25 dB steps. I am very tuned with the Source and can easily operate with just a finger and get the perfect volume without it slipping. The weight on it is perfect. The DC-1…not so much. I nearly blew my ears out when I tried to turn the knob with just one finger swipe. It slipped and skipped a bunch of db's very fast. The remote is okay.
5) Overall, very impressed so far with the DC-1 at it's price. Great sound. Design could be a bit better but certainly no deal breakers…yet.
6) Headphone pairings - I've only tried the D2000 so far. Will try more phones at some point, especially the HD800. The DM Source with HD800 is just so right in every way. Will see if the Emotiva can deliver with other phones.
Next up: Monitors.