It's definitely more extended than emphasized. It's just that it's an overly warm headphone. The upper midrange is recessed to the point of harmonics and 'in-your-face' energy of songs can become subdued, so it's really laid-back sounding. A lot of people like it of that, some don't like it because they want a more in-your-face headphone.
It's a deliberately colored headphone, if you wanted more neutral you should have gotten HE-500, which is still warm too.
Ok, this actually jives with my perception of it, so we'll see.