I believe the problem is with how VDJ is routing the I/O on the rev7, which is more complex than my Rane one.

I don't think OBS is at fault because it's just listening to whatever input I tell it to listen to. Download and install any Virtual Audio Cable and follow the instructions in the cables documentation to add an input to capture Soundtrack audio. then I would totally be looking at Pioneer. If when running it through Serato, I experience the same thing. Turn monitoring on for one of your devices (it should play through your speakers/headphones to begin with) 3. That tells me that VDJ is routing something different, leaving those other things out of the 'master' mix. Instead, it leaves out FX, mic, sampler, etc. For instance, routing 'master' out to whatever I choose, should actually do that. but the following facts counter that idea: - everything works fine with my RANE ONE (VDJ & OBS) - Everything works fine when I run the rev7 with Serato (select Serato Virtual Audio in OBS) - OBS never had the option to select specific USB channels with any of my previous controllers There's something with the way VDJ routes the I/O with my rev7 that's preventing it from working 100%. You will see the different audio devices, your desktop audio, microphone and also the Audio Virtual Cable. This will open the advanced audio settings. I actually thought it was a pioneer issue. Open up OBS Studio, and at the dashboard screen, under the Audio Mixer window, click on the gear icons.

Virtual cable for obs