Originally Posted by Mellowship
Just keep in mind that the majority of headphones will take several hours breaking-in. The mobile membrane should accomodate and loose it's stiffness so that the sound becomes enjoyable. These is even more significant when talking about small headphones. Some people buy them, plug them pristine, and expect to ear miracles.
What's funny is that with the RE2's as soon as I plugged them in I was impressed. Then I hooked up the FiiO amp and wow!
As of now I probably only have 15 hours on them and I can't hear any real improvement (and yes I think burn in, with speakers/headphones at least, is a real phenomena). But there is no need for it, the combo is very nice.