Ah, you'll have to research which programs you can use for applying parametric filters then, or someone else who knows what's available on a MAC can answer.
I'd be a bit wary of using Jaakkopasanen's settings for Oratory Measurements because I'm not certain that the parametric filters are exactly the same as those ones used by Oratory? So it could give you different results to just using the parametric filters that Oratory lists. Until you (we) know otherwise
@HooStat I'd make sure you're copying the parametric filters from Oratory's pdf files at the link I gave you earlier.
EDIT: I also recommend using all of Oratory's filters rather than just some of them, because they combine together to make the Total EQ Curve and affect each other cumulatively.....there is room for customisation of the filters though, but normally by just adjusting the Gain of the Low Shelf Bass Filter and perhaps the High Shelf Filter if one exists for a given headphone.....also on his most recent EQ's he lists which filters you can adjust to morph the headphone to your own taste, even filters beyond just the normal Shelf Filters.....this is a new development from him.....I suggest you take a good look at his pdf files rather than diving into Jaakkopasanen's stuff that Jimbob linked.
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