there are many soundcards on the planet and we unfortunately don't have time to test all of them for compatibility.
If you look in the Windows sound settings (in control panel), does it list multiple outputs for the same device?
If yes, then in the Myriad Audio Settings you should be able to set each cart player to come out of the different outputs.
If NO, (it may just list it as SPEAKERS) then I'm afraid that device is not suitable, and unless the manufacturer has a different Windows Driver, it will not work with Myriad v3.
Broadcast Radio Ltd