Wanting new headphones but need help.
I currently use the Denon AH-D310 on my Xperia Z using deezer. But I am looking to upgrade my headphones to use with my amp which is the Matantz PM6004 and to still be able to use with my phone. I have an eclettic taste in music but mainly listen to R&B & Hip Hop. I have a maximum budget of £250 and these are the options I have come across the Akg k550, Akg Q701 and the Philips Fidelio X1. What do you guys recomend out of these three or can you recommend any others.