Equalizer in a Hi Fi system

i think you had made good observations cundare2.....

Eq. is a tool , a means used for an acoustic problem but not the solution but only an element of it at best ...

For example i used Eq. for my headphone to push them nearer the Harman curve but without my other modifications this will be useless ...EQ. cannot replace material acoustics...If it is not a cherry on a cake , we mistake the cherry for the cake ...

Also EQ. work with precise frequencies window, unlike other tool which work on all the wall of sound at once ...I use low cost small battery Shumann generators , cheap one , located at specific points and they work amazingly well to made more organic all the soundfield ... Why ? i dont know ...😊

Welcome to you by the way ...

Eq is a useful  tool but generally not a solution .... Eq. generally dont adress the trade off it create to "improve" something , decreasing or impeding something else ...

And our ears/brain dont work as a linear Fourier tool anyway... And physical acoustic controls cannot be replaced by DSP and in some room/system well embedded there is no need for DSP E.Q.but sometimes as with the BACCH filters some DSP is irreplaceable by anything else ... Life is complex sorry ...

Equalizing each albums reflect an acoustic problem not related to your ears/room/system so much perhaps if your system is well done , than related to the bad recording and studio bad work and bad pressing often cumulated together in commercial music ..,.

I equalize to compensate some of my gear limitations , i could do it to optimize my room acoustic also , but never for the albums sake : for example to compensate for the AKG K340 design and my modifications limits i used equalization ..

After that hearing with the K340 the acoustic recording condition of each albums was a pleasure but i listen not to popular commercial music , it is true ... In the case of popular commercial music i can imagine why we must equalize each albums ...I offer you my deepest sympathies ...😊

Try jazz and classical ....

I apologize for the ironical tone ...

If we love some kind of music it could be indeed a problem and EQ will help... Purist can go sleeping...

The bashing of equalization as a tool is ignorance but the use of equalization as a solution is ignorance too ... Equalization is a useful tool not an acoustic solution ...It help alleviate some problem but do not solve any acoustic problem by itself alone ...

I use EQ after establishing the right equalisation levels with my modified headphone because so good they are , they are not perfect, no headphone is , and can be too far at some spot from the Harman curve and my ears ask for such slight improvement ... It could be the same thing in a room for a form of DSP , the best DSP is the BACCH filters , eveybody needs this one knowing it or not because this DSP is an acoustic solution with no trade-off ...

EQ is a tool for a specific goal but never a solution by itself alone ...

I use it for my headphone to go nearer the Harman curve ...But it does not replace the electrical,mechanical and acoustical necessary controls and treatment i also used and put in place with my headphone and speakers/room ..