I've had the model 12 for about a year now and I am having a lot of trouble getting my bearings on the volume levels right so I wanted to touch base here to see if anyone else had similar issues. In general, a lot of the music I am working on with Ableton is getting tracked too quietly, and then at the final stage I'm working too hard to bring levels up in mastering which I don't like doing. This has something to do with the fact that when I'm monitoring, it is sounding like sufficient volume (i know this is vague and we don't have to go into that). So there is the tracking phase and the mixing phase. Let's just stick with the mixing phase since it's easier to discuss just one item. My Ableton master out goes to 11/12, and then on the model 12 i switch that channel to PC. I imagine you want to make sure that only the Main is selected so that when listening on headphones I don't hear the mix duplicated in the Sub as well. Ideally I would be able to hear this Master mix from ableton in a way that bypasses the model 12 mixer completely, similar to what happens when I listen back on a simple focusrite interface. Does anyone have any tips on this part of the process?