Mahgister, have you tried dsp?
Digital signal processing ....No....
Dsp is not acoustic treament and not purely acoustical controls...
It is not designed to replace mechanical (vibrations and resonance) controls...
It is not designed to lower the floor noise of the house grid...
It can help....
I dont need it ....
And remember that my goal is peanuts cost Higher S.Q.
I succeed to a great extent then i dont need nor want to invest money in DSP...
But i will try a free program this summer to adjust my speakers and room with a mic to finetune my results...
My system is more than good now at 2 listening different positions....I trashed so to speak my 7 pairs of headphones.... Then... I think that my room/speakers are good now... 😊