Reply to x1600 setup

I have got a dn-x1600 recently and there are many options on it. I have been watching some videos how to set it up properly so I can hear the sound, but still no sound is coming out and I got to go to work...

I got a pair or mackie mk2 and xlr cables for it connected to the mixer, I have installed the asio drivers and updated firmware. The dn-x1600 audio is set up to default and usb mode is B.

I want it to work as a soundcard for my speakers and a pc like playing winamp. What I am missing?

Thanks.