Pros: Soundstage, Comfort, Moddable
Cons: Read Review
This isn't a detailed review.
If you are still an S500 user and prefer it's sound, get the S600, to see why, read below.
I'm still kinda shocked nobody has voided people from these.
Burn In Times & Changes
If you don't believe in Burn In, ignore this. But be aware you're missing out.
These cans can't be burned in by just listening sessions, Constant Burn In required.
Bass will loosen a bit, headphone sounds more spacey.
A little change, Mids were getting lost in the Lows, but the famous S500 Shiny Highs start to show their faces.
Bass begins to hit a bit harder, and if you use low bit rate files, bass comes off muddy.
Same differences, no real change.
50h Mark(Final Mark! These only need at least 50h)
-Highs became even more prominent, yo basically begin to get S500 style Highs that the S500 would get after Burn In times.
-Bass Response Tightens.
-Bass loses a bit of flooding Mids issue.
-Soundstage increases, Bass detail is more prominent.
So all that being said, there isn't a huge Burn In time, the headphone has more Soundstage and icreases rapid response and Bass Detail.
Bass isn't as mushy as S500, it's more tight.
Cotton Mod - Apply bits of cotton inside inner shell to reduce echoing in Bass punches.
EDT250 Pads - Bass loses rapid response, but increased comfort.