I am on the verge of buying the M-80s and was just wondering whether anyone had any experience with any amps/DACs for these?   I was looking at buying the Fiio E17s when they are released but are there any other alternatives which you would suggest?   Much thanks!

Hi,   I have a total budget of around £200-300 and am looking for some closed full sized headphones and possibly an amp/DAC if needed.   The music I usually listen to varies between Slipknot and Lady Gaga. The only headphones I've owned before were some Sennheiser CX 400-II Precision...