XDJ RX2

Hi,

I would like to connect my XDJ RX2 to my external audio device (komplete audio 6). Indeed, I use also a traktor S4 and I do not want to plug and unplug each time I want to switch of controller. With the S4 it works fine (komplete audio 6 set up as default sound card in my Mac Book pro). I set up in rekordbox also the Audio 6 as sound card. When I upload a music directly in rekordbox without using the RX2 it works fine but when I use XDJ RX2 in export mode it does not. Tried the same setup than the S4 (i.e the controller connected via usb to the Mac Book which is connected to the audio 6) and an alternative (i.e XDJ RX2 with an usb key connected to the audio 6 via TRS cable (main out or booth out to audio 6 inputs) and it does not work :( With the alternative SoIution I can listen the music in my Headphone and the green lights for the inputs on the audio 6 are blinking (meaning that there is a signal) but no sound in my monitors ! Can you help me please ? Thanks