I'm in a club now too, got myself the LCD-X a week ago.
An absolutely freaking good heaphone. The build is excellent, the looks too and of course the sound. Coming from HD 660S here and my god LCD-X destroy those.
The bass is so much deeper and so much better controlled, the highs... There are just so much details in the highs and the mids are good, but i think i still prefet the HD 660S mids a tad more. Overall, the sound is very neutral i think and while pushing details into your years it is never harsh. The sound is extremely gentle and extremely revealing.
The weight... At first i was afraid that i won't handle it, but surprisingly i've been wearing the LCD-X for 5-6 hours for last three days and it was completely fine which is a surprise for me.
One con tho... When i first placed the headphone onto my head and started the music i thought "wait, there is smth wrong with the balance".
I triple checked it (compared to other headphones) and yeah, if it's not some kinda special staging that these headphones provide, there is a clear 1.5 - 1.75 dB (!!!) channel imbalance!
I contacted my local dealer and it appears to be they don't have a measurement rig, so they can only LISTEN to the heapdhone and IF they find any problems they will send it to ANOTHER CITY leaving me without the headphone for 20 days!!! That's so frustrating...
I've read Audeze helped the other dude here, may be they could somehow solve my problem too, so
@Audeze please, contact me!