Mikael.
I just tried DSD128 on my Audiphonics Sabre 9028Q2m card with DietPi and it works fine.
However there is a bug in DietPi 6.21 that I have temporarily solved with help from the DietPi team. https://github.com/Fourdee/DietPi/issues/2547
I would think it is the same with Audiophonics Sabre 9038Q2m.
