What about Audio Pros TX-100 "USB-audio card"

I just purchased a set of Audio Pros LV2 speakers. (http://www.audiopro.se/sites/audiopr...LV2_manual.pdf)

Edit: I just talked to the producer. People seem to use it connected to Linux devices. This is the chip:
SN11220 USB Audio Controller

I had hoped to get them connected to my Squeezeplug/SqueezeLite. Unfortunately it doesn't seem to work.
I cant even find the setting for output via USB.

- Anyone with a equal setup?
- Any thoughts, what i can do?

Thanks
David