Another fact:
We live an era of luck for audiophile...
We can afford very low cost gear with a minimal satisfaction acoustic threshold. My actual system is very good for his peanuts price ...
All low cost chinese, save one vintage from japan, but 2 German vintage headphones...
I had 4 conditioners / purifier/ clean power reserve. 8 homemade grounding box, 2 Schumann generators, many homemade Helmholtz resonators in my acoustic corner/room and one linear power supply serving three gear pieces.
Peanuts costs and very good for what it is ...
I am happy with it, even if better exist, i learned how to install any system at any cost, but i bought vwhat i could afford...i am proud to have been able to learn acoustics concepts...
Acoustics panels are good enough for a living room but acoustics ask for more knowledge than just buying them...Thats my point...