solderdude
Grand Contributor
Nope. EQ between 100Hz and a few kHz is correct.In this case, any mention of an EQ profile (like in Amir’s review) should automatically be shunned on this website, yet I haven’t seen that happen.
It is also the reason why Amir does not EQ according to the measurements but eyeballs the measurements and then makes an EQ based on what he hears and sees as problem areas on the plots.
Of course there are plenty of folks who like to EQ exactly according to a measurement and when you would apply that EQ to that particular copy on that particular fixture in that particular fitting/position you can get a nice line that follows the chosen target exactly.
In most cases that will give an improvement for sure.
But get this... when one EQ's several headphones this way they sound similar but not the same. That is because:
Headphone copies differ.
Positions on the fixtures differ (or are averaged).
Pad conditions may differ (temperature, wear).
Different fixtures might be used.
Different targets may be used.
Different EQ settings (the implementation of it)
Different seal may occur both on the fixture and on the head.
Actual heads do not conform to standards.
You see .... that is the science behind headphone measurements.
That does not make headphone measurements on a fixture pointless. On the contrary.
When one used one fixture the science tells us the results will be comparable to those of others using the same fixture and same copy provided they fit a same headphone in the same conditions and will only have to allow tolerances to be the difference between the measurements (regardless what the cause is for the tolerances).
That is the science part.
Any generated EQ will most likely be an improvement simply because headphones are far from perfect and never will conform to any target on every fixture but you can get them to 'follow' a certain target on a certain fixture ... that is the science part.
Knowing head/perception/circumstances like listening SPL, fit, seal etc will differ on any head is something that must be taken as a given.
That too is very well described by science. Many articles have been written about this.
That is the science part and is what fits with ASR. Especially the knowledge that a fixture conforms to a standard and your ears might well differ (and actually do).
That does not make any EQ pointless or even not preferred.
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