Okay @ James and Chris, now when are you guys going to join me in the customs plane? There are so many seemingly decent custom companies out there now that are allowing to you get a pair around the same price as the universals you are purchasing. Don't get me wrong, I think universals will always have their place, but these customs are taking sound - for me - to a whole other level.
I think I still prefer the 'idea' of universals, and how they are more easy to sell if you're not content with the sound over time (and we both know how that can happen to even the seemingly most vaunted kings of the heap!).... I'm sure the quads you have must be amazing though! However, these EX1000s do some amazing things too, and with that impact which only dynamic drivers can provide. Isolation is another matter though... not as bad as the DDM, or FX700, but worse than the SM3 for sure. Probably somewhere right around the IE8, maybe a touch less.