So, after a good days worth of listening I can go over some initial impressions.
Firstly, they are worth the money. Secondly they don't compare to the LCD-2's as I have heard others say.
Tonally, they have some good bass... Not as good as the LCD-2's or even the HE-4 but i'm content with it. Its well controlled with great extension and an adequate amount of slam. The mids on the other hand are just OK. There is a slight drop off in the upper mids that make vocals seem a bit distant and smothered in some cases. This is something I experience with the HE-4's and is a gripe I have with many headphones. Highs are good; clean, crisp not bright or sibilant. I'm not really particular about highs so others may have something else to say about it.
The main issue I have with them is that they sound a bit congested, lack separation, and have a fairly flat and close soundstage. Others may call them intimate, but compared to my other phones it makes everything a little difficult to listen to. Some intricate and heavily layered tracks sound cluttered and blurred. I guess, compared to the LCD-2's and HE-4 they sound dull and blunted.
I may be overly critical, but just so its clear, I do like these headphones. They are just outclassed by some of my other more expensive phones that, after reading some other glowing reviews, I was expecting the mad dogs to be able to compete with.
That being said, I bought these with the intention of being a transportable (not portable) headphone which is something I have not tried yet (waiting on a mini cable for it). They will also change the more they burn in so maybe some of its issues will be resolved with time.
On a side note, they are SOOO comfy, they seriously feel like pillows on your ears.
More to come.