Again, with this 'required' treble bump. Please. Again, the LCD3 has NO such thing. So much for a high end headphone, if it has no such treble bump that is 'required'. It's so far below the mids, it'd need some serious lift at 10khz to come close to the bass and mids.
How about actually listening to headphones instead of just looking at graphs? The X1 has an obvious emphasis SOMEWHERE in the treble.
Since you prefer to look at graphs instead of listening to the cans:
From Innerfidelity
As if that obvious tip at near 10khz wasn't obvious enough (a 10db difference). I don't even need to see that graph to HEAR that the X1 CAN be fatiguing at times, with a screech in the treble at times. Again, the X1 is a pretty smooth headphone, but there is SOME treble inconsistency. Some of my TV shows are borderline painful to watch with the X1. That's not to say they aren't painful with other headphones, but the X1 isn't as smooth as some might lead others to believe.
You're just beginning to sound like a fanboy to me, trying to defend everything about the X1. We get it, it's perfect. The end.