I think there is a unwanted aversion towards EQ. All music is heavily equalized during the mixing and mastering stages. No music is ever un equalized. Even in live performance, the sounds from individual mics are equalized.
And why should I then use my own EQ additional to that? It`s job done by professionals usually and why should I over-EQ original audio that came from studio once more?
I wish to get result I hear close as possible to made/processed in studio.
I didn`t say EQ is bad and noone should use it. Yes EQ can help but better the reproduction gear is, the less EQ need there should be, in my practice.
Everything further from music makers fingers/voice/instrument is processed anyway some way. Any additional "processing" by end-user is unwanted as it is purely additional subjective thing
if done improperly.
Where EQ helps, is Your audiologists hearing response curve - You can adjust Your gear according to that using FR measuring tools. But do many of us even have been @ audiologist for hearing response graphs? Not to mention properly calibrated FR measuring tools?
I`m not and I wont probably do those things as I have good hearing and I know my sensitive region. I know which IEM/headphone to get by their available FR graphs to "avoid" and relieve exessive sensitive regions.
Of course, If one uses EQ to get that issue "solved", it is similar thing but like it was mentioned EQ affects also other nearby FR. I like to not "touch" any nearby FR as there are already hardware and software related processing before that and after audio exits studio. I rather get into hardware tuning (like I did with DX50) to get more cleaner and accurate result - but even that is affected by subjective things - hearing response and personal preference.
IMHO, It is all purely preference and subjective thing with lot of other factors in play (DAC chip, AMP chip,
software processing, tip selection and fit, hearing response etc.).
I underlined software because most of us are unaware how much software processing that affects sound we hear is actually going on under the hoods of nowdays DAPs, smartphones, wireless/streaming etc. That`s why I also use modified software and only 1 file type (FLAC) with my DX50, to keep it more "unprocessed".
But EQ is lot easier for most users to get their subjective end-result they like and I suggest to use EQ for sure if one isn`t "geek" like me ;D
JMHSO