http://mcmeng.com/patrick-o-brien/ 
Surgical Sounds In Project Mastering TUTORIAL
A breakdown of how I polish mixes off. You’ll need a few things to apply this method:
https://www.octavtirziu.com/nextgen-gallery-2/- A compressor with A/R controls and also a highpass function
- An intelligent multiband compressor like Ozone 9 mb or Fab Filter Pro MB
- A good limiter with true peak controls
- A mix that is not ass – mastering is like adding sauce to a dish that already tastes good
