Impossibly Loud. Impossibly Good.

Chris Gehringer, Senior Mastering Engineer & Partner of Sterling Sound, was so taken with our Sontec MES-432D9D that when Rick Carson approached him about doing a signature plug-in, he was was ready to go!

“I wanted to release something that would help engineers master in todays modern environment. So with that being said, we’ve created my plug-in (CGII) which helps you gain level to loud tracks and simultaneously add character.

Our intention going forward is to create tools that I have always wanted to make amazing sounding masters - tools that are necessary for today’s music.”

– Chris Gehringer, Sterling Sound

The result of our collaboration is CGII - a mastering dynamics finishing toolkit.

CGII is comprised of two uniquely complementary dynamics enhancement sections, a new True Peak Limiting stage, DC blocking and dither with LUFS/true peak metering via spiffy tube filament displays, all operating at up to 16x over-sampling (or none at all - depending on your tastes).

The design prioritizes musical integrity and ease of use, with the ability to add effective loudness, weight and definition without diminishing spatial depth and visceral impact the way traditional dynamics processors often do.






Use CGII to make your masters loud without losing the clarity, density and heft of the original mix. Even if you are working with a mix that is already loud, you can give it a little extra, without adding unpleasant distortion and without flattening out the material and sucking the life out of the low end. At the same time you can control the true-peak level of the program to ensure that there are no inter-sample overs.

We’ve also included dither, a DC-block filter and complete LUFS/True Peak metering so that you can place CGII at the end of your master chain as a one-stop shop for final processing.

While CGII’s original spec was to make things good & loud simultaneously, you will find that it is wonderful in a variety places in your mixing and processing chain.

Use the Loudness processor to excite harmonics. Use the Density processor to bring up the bloom and raise low-level clarity without affecting transients. Or simply put the incredibly transparent true-peak lookahead limit any place you need it.



Daniel Escobar
Mix Engineer
(credits: Bad Bunny, Lizzo, DJ Kahled, SZA, Marc Antony)
“CGII replaced an entire chain of plugins that attempted to accomplish what this does exceptionally well. I believe this will become a staple in modern music productions to come.”
Mike Monseur
Mastering Engineer
“Is it another limiter? No. Is it a gimmick? No. It’s an incredibly intuitive product that delivers what it promises - Loud AF masters.

Make Believe and Metric Halo have nailed it again. An incredibly intuitive plugin that gets you the loudest master of all time with the simple turn of a knob. Use it wisely.”

Lee Rouse
Producer, Engineer and Songwriter
(credits: Third Eye Blind, Justin Bieber’s Purpose Tour Band, Shawn Drover)
“CGII is a game changer to add that special something you’re missing on your MixBus. ”
Rory Miller
Mix Engineer
“One of the biggest challenges mix engineers face right now is having to match an insanely loud reference mix. Now, I can just slap CGII at the end of my standard mixbus chain and never worry about it again! Insane loudness with no compromises!”
James “Fluff” Harley
Producer & Mix Engineer
(credits: Prince, Zara Larsson, Yumi Matsutoya, Quietdrive, New Medicine, and Lucinda Williams)
“Clear, Punchy, & hotter than Hell level output. A checkered flag final stage tool for all scenarios.”
Josh Gannet
Recording, Mixing & Mastering Engineer
(credits: Redman, Wu-Tang Clan, Method Man, Inspectah Deck, Ghostface Killah, Maino)
“If louder is better, CGII is best!”
Adam Cichocki
Producer | Mixer | Mastering Engineer
“The CGII is incredible - feels like it gives me infinite volume and adds a texture and energy that I've been looking for on my mixes for ages. This thing has lived at the end of my master chain and isn't going anywhere! Kudos to the team for another killer asset.”
Brad Boatright
Mastering Engineer
(credits: Stranger Things, Netflix, Sleep, Samiam, Nails, Poison Idea, Obituary, Code Orange)
“I hear CGII a lot like I hear the interaction between the loudness and volume controls on my Kenwood KR-7600.

It gives you a more defined sweet spot, and a greater ability to increase volume and tonal density without sacrificing a thing… and it just sounds damn good!”

Seth Munson
Multi-Billboard No.1 Mixing Engineer and Mastering Engineer
(credits: Teddy Swims, Boi-1da, Bolooki, Christina Grimmie)
“I keep finding myself reaching for CGII over what used to be my normal mastering limiters. The simplicity lets me stay in my creative flow without getting distracted by all of the technical details under the hood.

After getting CGII I said f*ck all my other mastering limiters.”

Jon Markson
Producer / Engineer
“I’m always on the lookout for new ways in stage, inflate, or break apart elements in my mixes and CGII does a simple thing that can be pushed to do all three of those things.  It helps musically pin stuff where I want it, or to push it over the edge to unexpected territory.  I’ve been loving it on my vocal bus.”
Doug Wier
Mixing and Mastering Engineer
“Love CGII No other loudness tool like it. Incredibly musical loudness that doesn’t get thin or harsh and leaves my drums alone!”
Thomas Plec Johansson
Mastering Engineer
“What is CGII?

Loud, Punchy, and Clear walked into a bar… and everyone asked what plugin they used.

If you're like me and love making things loud while still preserving the natural dynamics and intent of a mix, CGII is a must-have plugin. The team at Make Believe has cooked up some truly enjoyable sonic alchemy in collaboration with world-renowned mastering engineer Chris Gehringer.”

Maor Appelbaum
Mastering Engineer
(credits: Faith No More, Yes, Meatloaf, Sepultura, Eric Gales, Starset)
“The CGII plugin by Metric Halo & Make Believe is Rockin!!!

It can get very LOUD but still have clarity. It also has this Density feature that can thicken the sound in a warm way and give a nice push to it.”

Johnathan Roye
Grammy Nominated Mix Engineer and Producer
(credits: Kid Rock, Jordin Sparks, Owl City, Ludacris, Blake Shelton, Billy Gibbons, Snoop Dogg, many more)
“Thanks to CGII I am now the loudest person in Nashville!”
Joel Wanasek
Mix Engineer
(credits: Scott Stapp, Ellise, Machine Head, Voilà, Ashley Sienna, Gunnar, Rain City Drive, Keith Wallen, Miyavi)
“Sh*t Slams Bro!”
Drü Oliver
Artist, Producer, Song Writer, Mix Engineer
(credits: Kodak Black, Mac Miller, A-Boogie, Pop Smoke, GS9, Fivio Foreign, PnB Rock, A$AP Ferg, Rich the Kid, Dave East, Wale, Lil Yachty, Kyle, Ro James, Keyon Harrold, Cynthia Erivo, Prince Royce, Poo Bear)
“CGII simplified my need for loudness on my master in my production DAW when cooking up. 0 latency & maintains my sound.”

Key Features


  • World-class Signal Processing and Workflow
  • User-Selectable Over-sampling (up to 16x)
  • Density process effectively increases perceived program level by pushing up previously masked detail without affecting higher level peak dynamics.
  • Loudness process gives you transparent increase in RMS level while maintaining peak levels below full-scale
  • True Peak Limiter transparently controls output levels, ensuring that the true-peak level never exceeds the specified ceiling
  • DC-block filter removes any residual DC offset
  • Dither allows you to dither the output to 16 through 24-bits
  • Nixie Tubes provide dB readout of any of the user-selectable meter values (LUFS Integrated, LUFS Short Term (or Hold), LUFS Momentary (or Hold), True Peak or TP Hold)
  • Many presets included
  • Adjustable UI size
  • MH Preset Manager - Provides cross-platform presets

Try It Free for 30 Days

We want you to hear how CGII can bring your mixes to the next level – that’s why we have a free, fully functional 30-day trial of CGII available for download.

Try CGII for yourself today!

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The +DSP version of this plugin running with zero latency on hardware is included all Metric Halo 3d Audio Interfaces.

Tech Specs

System Requirements

  • Mac OS X 10.10 or newer. Intel Processor or Apple Silicon. AU, VST 2 & 3 or AAX (Pro Tools 11 & newer Native) host. 64 bit.
  • Windows 7 or newer. Intel Processor. VST or AAX (Pro Tools 10, 11 & 12 & Native) host. 64 bit.

Licensing Requirements

  • iLok.com account.
  • License includes two activations for your account.
  • iLok dongle is optional — you may install the license on your machine or on an iLok or the iLok Cloud for portability.
  • Only one license required – works on all supported platforms.

Documentation [PDF]