I have an answer to question at hand!
The original DS-10 and DS-10 Plus (not the Evo devices) differ in capabilities.
Decoding Native DSD on streaming input is ONLY available on the DS-10 Plus from SerialNo: 70985
This is due to a hardware requirement that was implemented on the Plus-series from the given serial no.
And, i can’t take credit for this detailed info, as i got it from Classic Design, Swedish importer of Goldnote products.
Sorry about this Michael, but you are not missing out on a great deal of sound quality here, it is more of a “stone in the shoe” regarding functional expectations.