Oh snap, they measure much like they sound. What an unforseen coincidence.
Yes, there is some L/R imbalance in my pair, but it's nowhere near as bad as the 5k hole appears. The more evil part is the odd order distortion and upper midrange ringing.
The extreme highs are about as dropped as 5k, bit less.
Here's my personal compensation curve attached. Referenced to 500 Hz at comfortable volume of around 40 sones.
These have been reshelled once in the beginning of their life - before that, they were way, way more forward in the 3k sense.