Update:
I came back with the S.G. optimal modifications : my 8 S.G. ( 7 cheap one) are now all modified with a thin "golden" plate+ tourmaline or Herkimer diamond or the 2 ...
Clarity all across the board, imaging out of speakers 3-d, natural timbre, dynamics without compression...
But the last and most difficult thing to get right was the atmosphere and space impressions of the recording room or theater or live event...If you prefer only studio sound and dont like the sound of live events or vast theater in your cd files, it is a sign that your audio system is not at his optimal, and the level of noise is too high... The best room treatment, and the best vibrations controls are not enough to get there... It takes methods to decrease the electrical noise floor, and other way than just acoustic materials to modify the acoustic of your room... The S.G. modified are great for that and different resonators ...
It takes some experiments to try and discover the good formula...I wait now for the final 2 big shungite tiles to makes the 2 last "golden" plates for the main router and the main breaker panels...
I dont know if a better product than mine exist? Probably, but I dont even dare to dream to buy one...Music is music now...
Most of the times really most of us really dont know what they misses in the sound quality, whatever electronic components we use...The embeddings of these components is the real definition of HiFi, absolutely not the stamp of commercial makers, so good they are... This is the truth I bring to light by myself...Some pointed to me the general direction, but I never tought that this will be a so great journey... :)