Wow, nothing comes to mind. Keep modding? Best bet would be IEMs tbh.
I could be that I just haven't tried the right ones but IME IEMs don't have enough forward projection for me to use them with movies and games which is probably about half of my intended use since those treble issues bother me just as much for that as well. I appear to be unusually sensitive to that sort of stuff but my brain can't stand it when my visual and auditory fields don't match up and full sizes just do that better for me.
I can do fine with even my lowly XB700 plus a surround to binaural DSP and it sounds close enough to coming from the screen to not give me issues. My SE530 gave me the impression of a tiny little stage inside my head which varies between distracting and nauseating. My PFE232s have more projection, but not enough. It gives me this weird vertigo-like sensation from time to time when watching TV from a distance, though they usually work fine if I'm at my desk a foot and a half from the monitor.
Are there any IEMs you've tried and can image forward and out of head like that? I'd prefer universals just for resale value since I don't think many other people have that sort of requirement and even if they do it may vary from person to person. I might be able to get some customs later this year though.
Good question Maverickronin, I find myself in the same spot and would like to hear input on this one.
Honestly, the only thing I can think of that
might fit the bill would be a Stax 4070 but that would totally break the bank.