Wow, i just received this headphones and they have blown me away. Ive read so many reviews on them, and now i can finally experience them. Im not using a headphone amp, and ive only just got them so there not 'burned' in either and they still sound INCREDIBLE. Im scared as to think how good these will sound once they have been used for 100 or so hours and once i have a decent amp. Would just like to point out that i don't have an amp of any sort, these are just running straight into my laptop and they run fine. Although im still yet to hear what they sound like through an amp, just a heads up to those thinking that these will sound rubbish without an amp. Because they don't! All kinds of music ive played through them, movies, games they are great with everything! I am yet to be dissapointed with them! PS - Don't know why people have said these are uncomfortable, i could wear them all day!