There is some disagreement on whether or not there are some discrepancies in sound quality between different units of this headphone, perhaps different batches in production. They measured differently on head-fi than innerfidelity. Was some discussion on measurement rigs used. Personally I've heard them twice, really enjoyed them first time (though it was at a meet, a bit noisy), and found them to be pretty boomy and heavily encroaching on the mids the second time, which was at a smaller meet, less noise. Lots of variables there, but take it as you like.
needhelpUsing frequency response curves from the same source is the only way to have somewhat reliable comparisons. There are so many factors that can affect a measurement rig. This is where innerfidelity shines as they have very large archive of measurements.
1) find a headphone you own, see how it measures there,
2)find the measurements for the headphone you want
3)compare graphs to see the relative level changes between the two
4)apply those increases/decreases to your own perception of the one you own
This helps eliminate the variances when comparing graphs from different sources/measurement methodologies.