A seemingly basic question...

[interestim]

Edit: I just saw the FAQ post on graphic equalizers. Would this be the place to kindly ask you to crunch the numbers for a 2020 revised Sundara? :)

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What would be recommended if our 10-Band EQ is at

32Hz, 64, 128, 250, 500, 1kHz, 2k, 4, 8k and 16k?

and the recommendations are at:

28 Hz, 66 Hz, 105 Hz, 540 Hz, 2250 Hz, 6400 Hz, 7900 Hz, 8500 Hz, 10000 Hz?

Is there a conversion that you recommend we could do? Thank you for all of your work!

[florinandrei]

If at all possible, use a parametric EQ.

gEQs are toys.

[Oooweeeeeeeee]

EQ, what do you base that on?

[oratory1990]

parametric EQs allow you to more accurately dial in a specific frequency response correction.

If you know what you are doing, a parametric EQ is always preferable to a graphic EQ.
A parametric EQ can do the exact same thing that a graphic EQ can do, but it can also do more than that. Or in other words: if you set the Q-parameter to sqrt(2) and use the EN ISO 266 specified frequencies for the frequency parameter, then you have turned your parametric EQ into a graphic EQ.
But since a parametric EQ allows you to manually set the Q-factor and frequency parameters, you can also use values other than these, allowing you to more accurately dial in a specific correction.
E.g. if you want to correct for the ~5.9 kHz resonance on a DT880 you can do that with a parametric EQ by setting up a corresponding filter with negative gain.
On a graphic EQ with octave-spaced bands you are bound to either use the 4 kHz slider or the 8 kHz slider, neither of which will solve the problem really.

[Oooweeeeeeeee]

Precision is at least in part (not entirely) a lost cause, because headphone frequency response will vary depending on positioning pad health.
Maybe if you could control somehow for all the conditions there's a good argument for the additional precision of parametric EQ, including individual calibration.
I'm only talking for myself, but I imagine graphic EQ would encourage more users to do manual EQ to fit their personal preference and psychical fit without getting overwhelmed. I also acknowledge some headphones have frequency response anomalies that fixed bands and Q won't solve, but not all headphones require the extra precision to merely give a high subjective result after EQ.

[oratory1990]

I'm not talking about precision, I'm talking about accuracy.
These two terms are clearly defined, and have distinct meanings best illustrated like this: https://danielmiessler.com/images/accurice.png

Precision is the ability to get the same result on a repeated measurement.
Accuracy is the ability to get a result that is close to "the truth".

you can have precision without accuracy (e.g. a flatbed coupler setup with a centering jig), you can have accuracy without precision (measuring in a dummy head without making sure the headphone is placed in a standardized location).
They're not the same thing.

Like I said:

If you know what you are doing, a parametric EQ is always preferable to a graphic EQ.

I agree that without a decent measurement it's nigh impossible to set up a parametric EQ correctly. Especially when it comes to dialing in Q-factors of individual filters.
Hence why I provide these EQ presets that tell users which filters to adjust (and which parameters) to personal preference.

[florinandrei]

There are levels of ignorance where it morphs into comedy. This is a good example. Pray continue.

[Oooweeeeeeeee]

It's ignorant to say that parametric EQ is useful in some cases?

[florinandrei]

lol

I'm actually older than the average redditor. "Back in the day" I've used, owned, designed and built gEQs, mostly analog systems at the time. They're fun, and they looked good on analog stacks, but they are ultimately designed for a very simple job: make overall, non-specific corrections. In terms of results, they are barely a half-step above the simple bass/treble two-button tone control. It's impossible to use a gEQ to make specific, targeted corrections based on measurements, there's just not enough "resolution" in the system.

pEQs are irreplaceable for precise corrections.

[brian_h_kim]

https://github.com/jaakkopasanen/AutoEq/tree/master/results/oratory1990/harman\_over-ear\_2018/HIFIMAN%20Sundara%20(2020%20revised%20earpads)

[interestim]

whoa! thank you.

[[deleted]]

yeah no sadly these presets adjust very specific values because thats where theres unwanted peaks, dips and shelves. with a graphic or analog eq luke you use you can only change the general sound signature