Hi
you have a lot of pretty esoteric stuff, and another device (your spdif interface) added into the signal chain ... so multiple drivers could be causing the issue. is your DAC not asynchronous? If it is, do you really need the USB interface to SPDIF??
I have asked Lukasz but did not get the answer back. I also asked the seller but he uses HQplayer
I don't know who you are talking about, but IF he also uses a USB/SPDIF interfaces ask him what driver to use. You might need to use the ASIO driver of the DAC (normally what you would want to do IMHO).
I'm guessing ta either your system settings are not right (see the wiki) or you need to use the ASIO driver for the DAC and not the interface
first read and understand this =>
http://wiki.jriver.com/index.php/Audio_Setup and any salient links on the page that might help you.
also look here ( a little out of date but not much)
http://wiki.jriver.com/index.php/DAC_Settings.
If no DSD specialist chimes in here, This is what
I would do, if you can't get any help from the manufacturers or you don't get lucky and find someone who has your actual set-up here or on another forum.
First set up a zone only for PCM playback (you can use the Player zone) -- forget the ASIO for now and use WASAPI in exclusive mode. (I strongly recommend to NOT use bitstreaming unless your equipment requires it) Does this work?
If so, Set up a second zone for DSD Playback (Menu Player=>Zone=>Add Zone). Uninstall the Interface driver and install the DAC ASIO driver. Connect the DAC direct USB (or SPDIF from your mother board) does this work? If so change the player PCM zone to this ASIO driver
You could also try WASAPI for DSD. Configure the appropriate out put settings for your DSD Dac. using one of the DoP choices first. Options=>Audio=>choose the new zone=>DSP Studio=>Output Settings=>Output Encoding) If this works at least you have music until you figure this out with the manufacturers.
The you could add back the USB interface, using the DACs ASIO driver to test.
Hope this puts you on the right track at least
PS - your step 6 - the volume mode has nothing to do with it working or not (and is also misleading, there is no manipulation using the 64bit engine unless you consider -140db an audible noise floor .... whereas the tubes in your DAC will have an audible affect on the signal so I wouldn't worry about it; your choice, just avoid system volume or application volume)