This is great, thank you for sharing. I knew the ATH-M50x had a good reputation, but I didn't expect to get an EQ'd score of 105 for only $150.
Do you happen to know, what is meant by "Error Curve w/ EQ Histogram" ? Of all 5 headphone PDFs I've downloaded thus far,it averages about 50% at -1,1 . If EQ is meant to fix FR "errors", it's confusing why this score would go up vs. non-EQ curves