I recently bought new HD-600. After a lot of soul searching, I decided that my HD-600's were the best headphones I ever owned. My old 600's broke during a move (so sad). Anyways, the new ones are fantastic. I forgot how tight the headband and the clamp is. My old 600's were easily the most comfortable headphones, but I guess that's what 8 years of use will do to a can (they feel so good broken in). Anyways, I'm getting a slight crackle when listening to certain songs. It only happens during orchestral pieces. Mostly piano bits. I put some hard heavy hitting electronic music, and it handles it like a champ. No crackle. Only on (I think) higher frequency sounds like piano. It doesn't happen on every piano bit either. I've heard some truly stunning pieces and it only cracking on certain spots.
I've tried a couple different albums to make sure it wasn't the same thing. But nope, same thing. It's kind of random too. I've only tried it on my Anime soundtracks. I guess it's possible the recording are bad, but the HD-600s are usually pretty forgiving. I dunno if there is something wrong with my cans, or if it's just a fluke thing. Hmmm.
I'm using Schiit Lyr/Bifrost btw.