Finally managed to get them and boy am I enjoying them!   I feel they may need an amp to work a better though and I'm looking at the FiiO E7 - is this the best option for the price?

Hi all,   Thought I'd seek some advice as there's a lot of choice, and a lot of headphones that considered real good so here goes!   I'm looking for closed back headphones that don't leak much and preferably will work well with a mixture of genres - by that I mean anything from metal to...