Nelson, you said you have the hifiman hm801, how does the ED8 and hm801 combo sound? And I've heard people saying ED8 needs hundreds hours to burn in, is that right?
Hey Litho, glad you were able to hear the Ed. 8s. They seem to be a little underrated on Head-fi, maybe because their price scares a lot of people off (you can find them discounted on rmcaudiodirect). But I'm not aware of another closed, portable headphone that sounds better.
They do a lot of things right, with a good tonal balance and great detail. IMO, they do have a slightly recessed midrange and its bass and treble can come off as peaky with the wrong setup. They also don't isolate as well as my Beyer DT1350s (or most IEMs), but these are mostly minor complaints. I just wish I had brought my RSA-stereo plug adapter, so you guys could hear it on a desktop amp and source. The CLAS+SR71b does sound pretty damn good for the price and size, though.
The Beyer DT1350s are also an excellent choice, they're more portable and isolate better than the Ed. 8s. And they're not that far behind the 8s in terms of sound quality; they have a richer midrange, but maybe lack some texture in the treble and impact in the bass.