So the title kinda explains itself. Might just chuck in soundstage in there as well while you think about what they are. Anyways, I own the Q701 and also the HM5, and apparently they're pretty flat and neutral. But some say that the Q701 has a huge soundstage that's un-naatural and doesn't sound right and I don't like the HM5 as much as I do the Q701. So I'm want to know what is the most natural, as well as everything else in the title + soundstage. I've searched the forum, but haven't found much on this exact topic. At the moment I'm looking to sell my Q701 for something a bit different, but was wondering, if i had my budget was limitless, what would I get? Also consider IEMs. I heard that the ER-4s are amazing at reproducing audio that's accurate and clear. But would it be better than headphones such as the Q701 and also the HD600? Thanks Edit: I am not looking to actually purchase the headphone with the flattes, most accurate....., but rather, I'm looking to know the answer.