headphone calibration

Why do these two target curves sound so different from each other? I know it's about the methodology - Sonarworks uses a different dummy head to perform the measurements. They also include how the body perceives bass impact in the calibration, that's why it sounds do different. But wait. Isn't...

The ears used by the GRAS system are very different than mine and I actually find the harman target kinda harsh and maybe that's because of this difference. But no matter how much EQ I apply, it kinda creates other problems in other frequency ranges and it just becomes an endless spiral it...

There seems to be a downward spiral that leads us to nowhere here. I've read and watched tons of reviews and articles, yet there seems to be no conclusion. Some people say that the Etymotic target is flat, some say that the Harman target is flat, some say that the IEF Neutral target is flat...

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Kind of went down a rabbit hole seeking to find a semi-automated way to calibrate my headphones with EARS. I know there are all kinds of issues EARS and headphone measurement, but I am old and unable to hear past 12khz and that seems to be where EARS falls apart and I only have over-ear cans. At...