@o_holter Did you get DSD working in Foobar? I've used it for many years and it hasn't failed me and it sounds wonderful. I also have a DSD Direct capable DAC, the SMSL D-6, and I believe that mode offers the highest sound quality. You might have to check the output device. Mine has to be on DSD+ASIO: USB DAC ASIO.
Playing DSD files
I have a small but DSD-capable DAC (Topping E30ii), and many DSD files on my hard disk. I am trying Audirvana Origin (one month free trial). It is able to play my DSD files, and the sound is good. However, before I buy it, I would like to test Foobar2000, with DSD components / plugins, maybe the sound is equally good. Yet I cannot get it to work. I’ve installed foo-component for dsd and sacd, but no sound, or even error message: unrecognized format, trying to play my .dff files. Anyone knows a workaround? With Foobar, my DAC display shows PCM (up to 706), it does not show (correct) DSD, like it does with Audirvana.