After much searching, I finally made a HiFi setup that meets my aspirations.
Patiently upgraded components: excellent ceramic speakers, Berkeley Alpha DAC, Berkeley USB interface, Nordost Valhalla speaker cables, power cables and AES / EBU connectivity, Audioquest Amazon analog interconnection and Diamond USB cable, analogue connection of Kubala Sosna Elation.
I've long been looking for a good sound source until I found the winning combination of HTPC with Seasonic Power Supply and a Gigabyte dual-layered copper-plated motherboard.
Also, I changed the big amplifier: Pass Aleph DIY of the highest quality components. The amplifier sounds great and can be the most problematic speakers.
I then used the Ayon Spirit III amplifier with KT150 tubes. An excellent amplifier, especially in trio mode. A highly accurate, dynamic, large stage with its speakers without any problems with the most demanding orchestral sections.
Finally he got the chance and got Ayon Crossfire II, a one-piece triangular amplifier, for SET, very powerful, 30 watts per channel thanks to the special Ayon tube 62B. With this amplifier all come together, and finally I have achieved a long-sought nirvana.
Now I enjoy every shot, from rock and jazz to the most complex classical music. These days my favorite recordings are opera dive: Netrebko, Gheorghiu. It's like a few feet ahead of me and they just sing for me. Priceless.