Thanks for replies people, much appreciated!
My budget is around £200 for Amp/Dac and I should have mentioned at the moment my setup is fixed, xonar d2x & the q701s/hd555s but it's not quite cutting it for me.
I recently listened to the Phillips Fidelio X1 and I couldn't live with them to me they sounded very Bassy and warm so I'd say I prefer a more neutral sound when listening to music and gaming etc.
So is the o2 amp/dac the way to go??
Edited by Angerer - 2/7/14 at 8:09pm