And I am bit puzzled by people insisting on using data generated with inferior clone couplers when amirm is providing
data generated with a genuine, calibrated and superior measurement device and equipment.
Remember, I didn't generate an EQ from measurements. I'm pretty sure the only one who did that was Maiky and it was based on Amir's data, and even that brought down the highs some. I actually took his and used it as my starting point. I then went through a lot of iteration, by 1) starting with a sine sweep to identify the hot areas that needed attenuation, and 2) a LOT of music listening over several weeks. What I hear on the sweeps mirrors what I hear with music, so there is agreement, for me.
When I listen to the Truthear Zeros stock, I hear this:
If it helps the discussion, I do not have high frequency hearing loss. I still hear capacitor whine in CRT TV's and my UPS unit which my PC is connected to.
I allways use harman target for headphones, but never really liked it for IEMs. Oratory1990s IEM target sounds more neutral to me, except from the lower mids, which I had to tune down a little (around 1-1.5 db).
Interesting, I will have to take a look at that.
Edit: according to this comparison, I would have to agree that Oratory's upper midrange and treble would be better for me, but I would not like the bass. In my experience, it shouldn't shelve up that high, but lower, something Harman gets right. They both get wrong the merge into the upper bass and lower midrange, which needs to be done by 100-125 Hz to preserve clarity.