I plugged them into my Fiio E11 and Samsung Galaxy S3 and the thing is I can't hear any of the vocals on the tracks I play. I know they're there but it's just so low!   How can I change this so I can actually hear the vocals?

I'm thinking of buying these headphones for on the go on a bus journey and so on. I won't be buying an amp, so was just wondering if these really needed an amp to sound good. I mostly listen to Rock and Rap.   If these do really need an amp to sound good can someone recommend another...

I'm looking for closed back headphones (I know the M-80 aren't but I've heard they don't leak noise) which I can use on my way to Uni and in the Library my budget is £250 and I've narrowed it down to these, I'll prob be buying after the M-100's come out but for now just seeing what my options...

First of all I'd like to say I'm completely clueless when it comes to headphones and this will be my first pair of big ones (Own Senn CX-870 and Klipsch S4 Which I may be selling) I've already asked at a non expert forum and got the general consensus that the best I could get was...