Well these turned up today, at the moment i'm running then from my PC's onboard sound until i get the FiiO E7 and E9 combo tomorrow.
The build quality is really good, and they're really comfortable to wear, my only gripe is that they aren't genuine leather, they're synthetic or "Pleather" i think it's termed, for the price i would have expected Velour (sheepskin leather) pads and headband, but that's only a small thing really, i'm going to be getting the custom Velour JMoney pads in the future.
The sound quality is absolutely breathtaking, before hearing these i was used to listening to my music through Sennheiser RS140 Wireless headphones, they pale in comparison and sound really cheap, but i didn't know any better because i'd never heard high quality headphones before, until now!
If you close your eyes while listening to a good quality track you can place the sounds in the space around you, think the professionals term it "Soundstage"? well it's got a really good one, all other headphones i've owned it sounds like the sound is coming from within your own head, but not in these, it's like you've been picked up and are sitting there with the band right on stage with all the instruments and speakers around you.
Some people have said the denon phones suffer from recessed mids, but to my untrained ear i can't tell really, everything sounds so good to me, bass is tight and punchy, vocals sound excellent, maybe a little in the background slightly sometimes but i think that's to do with the music rather than the headphones because i've heard alot of songs too where the vocals seem more prominent, the high end is clean, sharp and sparkly but i think that will mellow as they get some hours on them.
All in all i've been blown away by these, best £ i ever spent, i never knew music listening had so much more to offer, i'm hearing details in the music i didn't know were there before, i reccomend to every music lover to get a set of high end headphones at least once in your life, you don't know what you've been missing until you've heard it, my eyes (or ears?) have been opened.