Easy – but oversimplified if any of your tracks are clipping – and most mixes will have clipping tracks. In this case you’ll need the more detailed 15 minute real-time guide for ProTools stemming for stem mastering & mixing. tip : Don’t consolidate the tracks like many ProTools ‘experts’ recommend. That’s not whta I or any other mastering or mix engineer wants. You need to submit the mixed channels and the FX aux returns not just the raw audio.