So, I received the Dangerous Source today. I should mention that in between the Emotiva DC-1 and the Dangerous, I tried a Burson HA-160DS amp/dac combo that I bought off of this site. I also got a pair of Audeze LCD-2 cans and some HD800's. For the past few weeks I was listening to these headphones on the Emotiva and then the Burson (primarily the Burson). I always felt as if they never sounded quite right - not the way they had when I auditioned them in the store. Good - but not great.
Well as I mentioned - I got the Dangerous Source today. HOLY CRAP ON A CRACKER!!! This thing is seriously amazing. I know in Gary's test, he determined that the DC-1 and the Source were "indistinguishable" - and I believe him, because he was using the DAC only, NOT the built in amp. He did mention that he much preferred the headphone output of the source to the DC-1, but I can't overstate how huge the difference is here. Not just between the DC-1 and the source, but the Burson as well. This thing completely eclipses both of them. Clarity is about the same, but the depth of the sound, the fullness of the sound across the spectrum is vastly improved. Most surprisingly to me - the soundstage is at LEAST double what it was on either of the other two units with the LCD-2's, and a bit wider with the HD800 as well. This is contrary to what Gary experienced (he said he felt the soundstage was smaller) - but he must have been using a better separate amp)
It even tamed the highs of the HD800, which were previously so shrill that I noticed I would physically cringe while listening to them. I could only handle a song or two on them before my ears were hurting, even at modest volumes.
Neddless to say - I am sold!