Equalizer in a Hi Fi system

All these changes- new power cords, new digital spdif cord, and last but not least new tweeters- have the system fully saturated to the point to where the EQ settings are much better. And less. No more tricks like needing to bump up mids slightly and 120 hz slightly while toying with 15 kHz and smidge down at 5 kHz. Now it’s simply using 40 hz for bass and 20 kHz for treble. Everything else dead flat. If I DO on some darker recordings need bigger treble I switch to 15 kHz and back 5khz down 1/3 dot, leaving all the mid dials flat, and NOW with the added power and more saturated mids it sounds PERFECT, without any lower treble / upper mids suck out. In conclusion, the EQ interacts perfectly and better than it used to, even, to accomplish my listening ends. 
I made the discovery that when you push multiple other dials above flat even a little, like 1/3 dot, that you cannot drop 5 kHz by as much before the presence region is impaired. Guess it’s all relative and makes sense. But with cheaper cords when I set 120 hz, 500 hz, and 2 kHz all flat like I am now, it sounded recessed and a touch poor. Am sorry so long winded but wanted to elaborate on how better cabling improved mids and dynamics on the EQ and simplified settings. There’s also less overdrive (potential for distortion) as well, as all dials are set less and the resultant EQd sound is now only slightly louder than tape loop OUT (true bypass). Am very very happy with these changes. 😊🎶

A little update on aftermarket PCs from an EQ perspective. Joy of all joys, two great things are observed with my system nowadays. 1.  More and better bass. Better more popping and detailed articulation in mids. These are great great baseline changes that I would always equivocate with better hi fi. 2.  Surprisingly more headroom with analog bass boost so less prone to analog distortion. I didn’t expect this one. I love that at this point I have this current system maxed out completely. Only component or speaker upgrades can improve it now. 
Aftermarket PCs really matter! 

I confess to being lazy in the last year with pursuing digital EQ for both room correction or target curves. One day…it’s hard to make changes to something so good. 

@jtcf , still enjoying your studio equalizer?

I am super curious how well treble target curves work when you have actively done crossover using your high end DSP system and biamping. So very curious. @mijostyn ?  Comments?  We’re talking a broad bell centered at 15khz with a Q of 0.65-1. 1 probably better and more natural.