This has been sort of an on-going project for me. So thought I'd start a thread here for sharing and discussing different ideas and approaches on this. Anyone is welcome to participate, and give their own opinions, ideas, suggestions, etc. on the subject.
Since I'm currently using the 250-ohm version, most of my ideas/suggestions here will be for that particular model. Some of the basic principles discussed here should also be applicable to other headphones though, including possibly some of the other versions of the DT-770. The 32 and 80-ohm versions of the DT-770 have a slightly different frequency response than the 250-ohm DT-770 though. So for the best results, you'd probably want to find some more accurate and reliable FR data for EQ-ing those particular headphones than simply using the 250-ohm data I'll mostly be using and discussing in my examples below. (One possible resource for that might be Crinacle's graphing tool, which I believe has FR data for both the 80 and 250-ohm versions. I think all the diffuse field compensated versions of his graphs may be behind a paywall though.)
Since I'm currently using the 250-ohm version, most of my ideas/suggestions here will be for that particular model. Some of the basic principles discussed here should also be applicable to other headphones though, including possibly some of the other versions of the DT-770. The 32 and 80-ohm versions of the DT-770 have a slightly different frequency response than the 250-ohm DT-770 though. So for the best results, you'd probably want to find some more accurate and reliable FR data for EQ-ing those particular headphones than simply using the 250-ohm data I'll mostly be using and discussing in my examples below. (One possible resource for that might be Crinacle's graphing tool, which I believe has FR data for both the 80 and 250-ohm versions. I think all the diffuse field compensated versions of his graphs may be behind a paywall though.)
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