[audiodandy]

I totally agree.
can I ask you about HDMI ?
because my home cinema (onkyo tx-nr5009) support DSD decoding but do not have an USB input.
Is the DSD untouched stream can be transported through HDMI and decoded by my home cinema ?
I never be able to use it. I will be very happy if I can.

That's a nice receiver!
I think you should make two tests

Test one to make sure that your receiver is capable of playing SACD (DSD) native
You can do this, like this:
According to your manual you have two USB ports, one on the front under the lid
and one on the back, so you could try to connect an USB harddisk with some test audio files on it
(SACD.ISO or DFF format) and see if you can play them with your receiver build-in audio player.
Or you place the audio test files on your NAS and connect your receiver with an RJ-45 network cable
to your network, and then try to playback the DFF, DSD, SACD.ISO files
good luck!

Test two would be to see if it possible to connect your receiver to your KODI computer
so that you can control the music with your KODI right?
(assuming that KODI will support SACD.ISO and DFF streaming over USB)
Ideally: your KODI computer should be connected with USB to your receiver,
If your KODI computer could see your receiver as an (external) digital playback device that would be great...!
But I'm affraid that your receiver sees the USB connections as DATA connectors for external harddisks
and not as "communication ports" for connecting other digital devices....
But there is only one way to find out and that is to try it.

Technically it's possible to send high-resolution audio over HDMI
But then your streamer should have an "UAC v2" compatible operating system (like Ubuntu 14.04 LTS and up) or Mac OS
with an "pci-e hdmi audio output interface card" but I don't know if these card exists (or work)

Try first if your receiver can stream DSD material from it's own internal playback function.
and then if your OS with KOLAB can be connected with USB to see if the OS sees your receiver as an "external DAC" (UAC)
That would the best

Success with testing!