I think he meant the actual recordings, not the bitrate. I find that to be true. Again, it's really controllable, and better to be too sharp than not enough, you can take away but not create sound, and it's a fine line.
As for my FA-003's, wow! I burned them all day, so they are now at 15 hours. The bass is tightening up, and becoming more impactful. The highs are smoothing out, for sure. I can't believe that it would not be noticed. It's gorgeous. I really notice a difference in the deep bass compared to fresh out of the box. The bass drum just smacks you right in the face now!
I'm just so happy. This is a big investment for me, hard to justify new headphones with 2 little kids! I needed to be right, and I am sure I am.
One note, on my Cowon I previously used the feature "3d surround" at 1 on a 10 scale. It would just tidy up the soundstage a bit more to my liking. On these, it is already perfect, and having the setting at 1 creates a bit off mushing in all of the instruments. Leaving it off allows more breathing room, and the soundstage is great, but the imaging is spectacular. I LOVE instrument separation!
I was just listening to Avenged Sevenfold's So Far Away, and the steel guitars at the beginning sound way away from the ears, creating quite the 3d effect. WOW! And, the cans are clearly improving in the burn-in process. And, perfect comfort still. That is on my massive head, wearing glasses. Super isolation as well. Can't really hear anything.