I have them and Dear Lord they are beautiful... Mouth agape when I first opened them.
Putting them through their paces as we speak. I'm comparing them to my D5k's HE-400's, and A900x from AT. So far so good! The test hasn't reached the Denon's yet but compared to the HE-400's as amazing and wonderful as they are these are on a whole nother level. The 400's are still some of if not the best headphones you can buy for $399. Probably the best bang for your buck on the market today but once I put on the LCD's it was very clear right away what the next level sounded like. At every volume point they are superior in every way which is really saying something. The main difference to my ears is the instrument separation and soundstage, the LCD's just POP. The mids come alive and the vocals are right in your face but still not to forward so that to me is the perfect mix. I love that mids on the 400 but these are just better to me.
That's it for now, I'll post more pics in a day or two.