Question / Help External mixer creating sound loop

[Nazarein]

I currently have my speaker out going into my stereo mixer and back to my PC in through line in(labeled mix) , OBS seems to be capturing local audio along with line in causing sound loop in the form of a rumbling sound. How do I stop OBS from capturing local audio and only listen to line in(Mix)?

https://gist.github.com/203786e29fb1184f2dedb3aefd558782

 

[Dilaz]

Mute the audio from mixer or disable desktop audio device from audio settings

 

[Nazarein]

my current settings are