For the price of these($160 when I bought them) they cannot be beat! They have a built in very powerful amp/dac which helps power these very powerful headphones, they have a bigger sound stage than dedicated open headphones as they have built in 7.1 surround sound which open headphones cannot achieve.
The clarity at this price is unrivaled, and have some of the most hard hitting base in headphones.
Nah just kidding, I still to this day regret buying these in my youthful naivety they wouldn't work half the time as the drivers conflict with windows 7/8 90% of the time and they sound terrible for the price. My superflux's at 1/5th the price sounded much better.
The 7.1 surround sound is awful, very forced and muddy. It makes it sound like you are underwater and you instantly loose any clarity you had in the sounds.
I ended up giving them away to a friend who still uses window's xp and doesn't care about sound all that much. I wish I could go back and start my foray into real headphones instead of purchasing these.
Though the only positive to come of this purchase many years ago, was that it made me determined to get better "real" headphones.