Principles Of Mix Bus Processing

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What's On Your Mix Bus?

What’s on your mix bus??

It is one of the most discussed topics in audio, and often one of the least understood. How many times have you heard "This is the best 2 bus compressor" or "This EQ really shines on the mix bus!"? But does that mean that it is the right piece of gear for the material that you are working on?

In this exclusive, Grammy Award Winning Engineer Fab Dupont explains his approach and philosophy to 2 bus processing, breaking down each step of his chain and the role it plays toward creating a tone for the track.

Learn how Fab sets up his two bus chain with:

  • High Pass Filtering and EQ
  • Precision EQ
  • Compression and how it can affect the relationship of all of the elements in the mix.
  • Color EQ
  • Limiting

Once you have seen how Fab does it, download the mix he is working on and use what you have learned to create a 2 bus processing chain that works for you!

Learn the principles of Mix Bus Processing, from Fab Dupont, only on

Exercise files
Equipment & Software
  • Sonnox Oxford Limiter
  • UAD Cambridge EQ
  • UAD Dangerous BAX EQ
  • UAD Precision Compressor
  • UAD Pultec Pro Legacy
  • UAD SSL G Bus Compressor
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Fab Dupont

Fab Dupont is an award-winning NYC based record producer, mixing/mastering engineer and co-founder of

Fab has been playing, writing, producing and mixing music both live and in studios all over the world. He's worked in cities like Paris, Boston, Brussels, Stockholm, London and New York just to name a few.

He has his own studio called FLUX Studios in the East Village of New York City.

Fab has received many accolades around the world, including wins at the Victoires de la Musique, South African Music awards, Pan African Music Awards, US independent music awards. He also has received Latin Grammy nominations and has worked on many Latin Grammy and Grammy-nominated albums.


David Crosby

Queen Latifah

Jennifer Lopez

Mark Ronson

Les Nubians

Toots And The Maytals

What do you have to say?
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2022 Feb 18
2021 Oct 23
I would love if you didn't stop the track and started it again when A/B..especially with that crash it really takes me ears away from the previous version. Other than that, very nice and informative video! I made myself a Mixbus Rack in Ableton with this idea + a few different compressors that is mapped to snapshots so that I can quickly A/B them without any interruptions :)
2021 Jun 29
2021 Jun 29
2021 Jun 29
The SSL buss comp has 30 ms attack. The UAD half a ms attack
2020 May 28
thanks fab!
guillermo blamey
2020 Apr 08
HI!!! somebody know a FAB FILTER compressor to replace the UAD Precision Compressor, thats Fab use in this example ? I DO ELECTRONIC MUSIC...I did with FAB FILTER PRO MB, but I am not sure if it works...thanks for any kind of feedback....fantastic tutorial!!!
2020 Feb 13
anyone else hear strange artifacts on the vocal? specifically the words "to do"?
2020 Jan 08
Nice workshop! I find matching levels by ear very difficult, so I use a meter before the limiter.
2019 Oct 29
I love when you say hello childrens hahahaah
2019 Oct 21
Please stop with the patronizing "children" call. Grinds my gears!
2019 Sep 05
Very nice. After your Cambridge EQ, I thought "he cut too much" and indeed you went back! Thanks for improving my ears with all the lessons.
2019 Aug 21
Great video! But i need to understand the difference between mix buss processing and mastering. So if I will send my mix to a mastering engineer do I need any processing on the final buss before printing my mix?
2019 Aug 21
Great video
2019 Aug 21
Great video
2019 Aug 13
I watched this several times to really understand your theory approach with the 2 finally sunk in and makes a lot of sense..Having all these UAD plugins shown, I will try this. I'm sure I will see better results. Thanks Fab
2019 Jun 30
Jesus that bottom...
2019 Jun 28
Thank you very much. This kind of minimalistic technique, when you make just a few little things, but each one is absolutely precise, is something we really need to learn (not only in music, as you say).
2019 Jun 08
Fab is the best teacher! Great practical video once again!
2019 May 21
Invaluable stuff Fab, thanks! I've been mixing for a while now and this has helped tremendously. Cheers and beers from Scotland, Robert.
2019 Apr 30
Very pragmatic and tasteful. It’s like you’re just getting out of your own way with a streamlined approach like this. It’s easy to go crazy on each individual track which creates more issues than it’s worth at final mix.
2019 Apr 23
Thank you Fab!That was very informative.You guys are explaining things much better these days.And I really appreciate you!"You know that already!"
2019 Apr 17
Excellent explanation, thanks. I heavily invested in Apollo interfaces and UA plugins with the last few years. This tutorial and your brilliant talent put everything in perspective.
2019 Apr 16
Can you discuss why you chose the legacy UAD Pultec vs. the 2nd gen version? Thank you.
2019 Apr 16
Thanks! re: Tape emulation-you mentioned that, when you use it, you put it in the top slot. I'd think you might put it toward the end (as if mixing down to a tape deck.) Can you talk about why you put it first?
2019 Apr 13
Do you always use 20hz boost on the Pultec on the mix bus or does it depend on the material?
2019 Apr 13
Really helpful down to earth explanation
2019 Apr 13
Great and informative video Fab! The Pultec is pure butter for the ears. Would you ever use a multi-mono compressor on the mix bus or do you like to have equal gain reduction on both channels?
Sakazi Sigal
2019 Apr 12
Great! One question - when do you use this mix buss processing - in the end of your mix or right at the beginning and you mix into it, adjusting it along the way? Thanks!
2019 Apr 11
Always take away useful information. Restraint and small moves.
2019 Apr 11
Once again Fab has Blown my Mind! How does one man know so much ))