Just wanted to share this. I got these headphones about two weeks ago, along with a JDS Labs O2 and a SanDisk Sansa Fuze V1. As many people have mentioned these headphones didn't "wow" me at all, but I wasn't disappointed because I wasn't expecting it, but man are these headphones nice. They are extremely comfortable, thanks to the extremely soft velour pads, and comfortable clamping force. The sound, ahhh where do I begin? They are so faithful to the sound (which is the reason why they don't "wow") and extremely detailed. People complain about the treble being too high and piercing, but this is not what I found, as I found them present, detailed but not overwhelming and I can say that they're enjoyable. I am mostly a classical listener and I am very picky with the sound of specific instruments, especially the piano (Superlux HD681s anyone?), but these headphones are very good at reproducing a airy atmosphere for the orchestra and piano, which I tested with Tchaikovsky's Piano Concerto No.1, and Beethoven's Piano Concerto No.5 'Emperor'. The orchestra sounds great and detailed. The separation of instruments id good and the sound stage is good but not particularly large. The bass is nice and not lacking (in my opinion). I found the bass to be accurate and not bloated, but accurate bass can be a problem for hiphop and rap listeners because it can feel a little boring.
The JDS Labs O2 is great. I don't have much to say about it except that it has virtually no coloration, no hissing, great build quality, and can drive the DT880s no problem. The Sansa Fuze + Rockbox is a great little MP3 player with a good DAC, and expandable memory. I am waiting for the LOD to arrive because it ships from Hong Kong, so I can avoid double amping. Although even from the regular headphone jack to the O2 it sounds great already. The first thing I tried was Carl Orff's Carmina Burana, and wow did it sound amazing (specially in FLAC). Well, I hope you guys enjoyed these first thoughts/Review.