Using XDJ-RX with an external soundcard

Hi, I am not impressed with the sound quality of the XDJ-RX and I wondered if it is possible to use an external USB DAC / soundcard. In this configuration, the digital signal would bypass the internal DAC of the XDJ-RX, then go to a computer connected to the mixer via USB, and then via the soundcard connected to the computer. It would be possible to route either the master out or the headphones out this way.

I have heard there is a small program by pioneer that allows that. Is it true?

Thanks

A