mixing/mastering headphones

[nognow]

I have already bought a professional headphone amp/dac so now I just need to find it a mate.
I have the AKG Q701 but they just dont cut it for me anymore. not enough detail/nuance and instruments sorta get meshed together.
any suggestions within a 400-ish range?
I was thinking about the shure 1840 or audio technica ATH-R70x but youre welcome to suggest any other pair.

Thanks!

[TwilightOdyssey]

Re: mixing/mastering headphones

You should definitely get to a place where you can audition all contenders in your price range. I would suggest that, if you can, stretch your budget a little more; $5-600 is really where you want to be if you are not going to be using monitors. I really like the higher end Beyerdynamic headphones, as well as Shure. My workhorse headphones are SRH 440's from Shure.