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- #61
An update to this, I did some more testing & comparison on the same portions of tracks between my K702 headphone and my JBL 308p speakers and I did need to add a little more energy around 2kHz, but I also needed to keep the extra energy at 5.5kHz that I talked about above. I was listening to the opening bars of Supermassive Black Hole by Muse as a means to compare because there's a guitar riff in there that I think is heavily located in the 1-3kHz zone, and adding energy around 2kHz brought that more to the fore and inline with what I was hearing on my speakers, it feels like vocals are the same too. So I added two new filters, borrowing the 2280Hz Q1.9 customisation filter from Oratory's EQ and placing it on top own EQ that I previously showed in the post I'm quoting. As a result it changes the frequency response of my K702 to the following vs the standard Harman Curve (Harman Curve being the light blue line in the background):I tested altering Band 5 to preference and found it was already spot on at the Harman Curve levels vs my AnechoicEQ'd JBL 308p speakers, but I found the difference was higher up the frequency range, in silibance frequencies and a little below, so Band 9 & 8 in Oratory's EQ, with a little more energy required for me in that area. Given that this is the area where we see differences between Crinacle's & Oratory's measurements (View attachment 128275), and that my own EQ based on the average of these two measurements accounts for that then this explains why I prefer my EQ based on an average of the two measurements (View attachment 128274,View attachment 128276). One little extra difference is my EQ also boosts slightly more between 3-4kHz than Oratory's, which I think is also beneficial for me.
And here's how the new frequency response looks vs the original K702 Oratory & Crinacle Average frequency response:
In future I could use this new frequency response as a target for my other headphones and experiment if they sound more accurate to my speakers, this might be particularly useful on the HE4XX as I felt that lacked a bit of definition.
I attach my personalised EQ of my K702 at the end of the post in an EqualiserAPO config file, but be aware that it's my own tweak on the Harman Curve to make it sound more accurate to "flat reference speakers in my room" and there's not really any particular reason that it will be more accurate for any of you due to the fact that we all have anatomical differences that influence what the ideal headphone frequency response would be for us.
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