Thanks you for your reply Gipehello,
I had until recently a Terminator and I own the Soundaware D300 Ref, it's a very good streamer at a very affordable price. I guess you have read the review on sixmoons.
In addition to its special power supply, one of its strong points is the remarkable quality of the music files from its SD card. Moreover the coupling with a Gaïa clock or other could be very beneficial but here it is necessary to inquire with competent people.
As for DSD files, there are so few of them that the playback level still seems to me to be insignificant. It's like 8k for TV.