I am now a proud E17 owner. Got it and my DT880 (250ohm) Premiums today, ordered Friday and got Saturday shipping for $9/item. Worth it. These cans are amazing compared to my HD280s, which are still nothing to scoff at compared to the majority of headphones available in stores. I hope people at work don't mind the slight sound leakage... also they are very comfortable, much more so than the HD280s. Also I was afraid the E17 wouldn't work my Nexus 7, but the Trinity kernel I'm using has the support built right in! I just have to have the E17 plugged in when I boot it. Now just to test on my SGS3... the E17 is a quality piece of hardware though. First DAC I've owned. I have a Fiio E5 I've been using at work with some Sennheiser MX580 earbuds which aren't anything special, but I figured it couldn't hurt. I can't wait to be jamming in style (and quality) when I work.
Edit: PAGE 300 BITCHESSSSS!!!!