DDJ100 + Audio dosent work

Hi together,
I use a DDJ1000 + Macbook Pro 2017 with Monterey. I have updated the firmware of the controller and also installed the sound driver of the DDJ.

Via USB the controller is connected to my Mac and is also recognized. With everything I do, the sound still only comes from my internal Mac speakers and not from the speakers connected to the controller. Unfortunately, I can't connect the speakers to the Mac because the speakers are connected to the controller via XLR cable.

In my research, I kept stumbling across the "enable the DDJ's sound card" item. But I do not know how or where. 

Does anyone know the problem or know a solution for it?

Thank you! :)