Connect the cables from the stereo out and run those into the input of your interface then open a stereo track in your DAW and be sure to route IT to stereo TO THE SAME STEREO inputs That you inserted the cables to on your interface .. Be sure that the track is not mono the track that you open has to be stereo .. it’s better if your INTERFACE has more than two inputs preferably at least 4 . That way you can still have a microphone connected and still have extra inputs and outs to connect the device. So basically you take a left and right stereo out of your interface & run it into this device and then go to the output section of this device and take another set of cables left and right and run them to your interface via XLR or TRS After opening a stereo track in your device that’s routed to the tracks that you physically ran into the device you then arm the track for record and simply record the device as if it was a audio track . Alternatively you could use a plug-in if you have a DAW like studio one call pipeline XT and they will let you insert this device as a FX unit like a VST plug-in for details on how to do a step-by-step just type in how to use pipeline on KZbin

Logic Pro