Mastering Grade Clipper
dominate your master
Flatline is the last clipper you'll ever need - bringing you the sound of pushing premium, world-class converters at a fraction of the cost.
Designed with ultimate workflow in mind, it turns your mix into a world-class stream, CD or radio-ready master in a matter of seconds. Using industry-leading code, it offloads processing onto the GPU - leaving you with power to spare where it matters most (the mix!).
Instead of overwhelming you with options, Flatline instead focuses and hones in on the "secret weapon" technique of high-end mastering houses since the 2000s: The sound of clipping top-tier digital converters. This is the sound you grew up with, and it's finally within your reach.
Developed in concert with professional mastering engineers to give you only what you need, with no fluff, Flatline is a powerhouse tool: Equally at home in a project studio as it is in a high-end mastering facility.
But there's no need to take our word for it. Try it FREE for 7 days - compare it with your favourite maximizers, and we're confident you'll agree.
Thomas 'Plec' Johansson (Soilwork, Scar Symmetry)![]()
"First rule in mastering is to do no harm, and after I've used basically every limiting/clipping piece of software and hardware directed at mastering applications available on the planet, the best sounding pieces tend to be the ones that do as little harm as possible while giving you the loudness that you're after and this is not a simple feat. Flatline has been the only piece of software that on several occasions proved to work better than my favorite $10,000 hardware box for these applications. It's simply THE best solution available today for gaining level in a clean and musical way!"
Ermin Hamidovic (Architects, Periphery, Ola Englund))![]()
"For 15 years I’ve been working around lackluster digital limiters to create masters which don’t squash the sound of my (or my clients') mixes. Finally, with my team at SubMission Audio, we have been able to develop the ideal mastering maximizer. Flatline retains all the character of your mixes, and simply just makes them louder and more exciting. It’s the perfect mastering tool."
Simon Grove (Plini, Protest The Hero)![]()
"Flatline is an understated monster of a clipping plugin. With simple, yet powerful controls and a useful range of analytical graphs and meters, it’s a must-have for the modern audio engineer."
Emre Ramazanoglu (Noel Gallagher, Lily Allen)![]()
"Flatline transparently does everything I need a clipper to do, holds transients, maintains the full range of the program material and most importantly makes everything better in a beautifully musical way. This unmatched performance means Flatline is my go to clipper, whether on the mix bus, for mastering or on individual tracks."
Mastering With Flatline
mastered with flatline
Key Features
- The only clipper you'll ever need.
- The sound of premium, mastering-grade converters for a fraction of the price.
- Zero-latency.
- GPU-accelerated, scalable UI. Low CPU usage.
- Buttery smooth metering. No lag.
- Syncs perfectly to your monitor. Video game response time.
- Capable of both world-class mastering, or simple mix use.
- Up to 4x oversampling.
- Factory presets by Mick Gordon, Forrester Savell, Ryan 'Fluff' Bruce, Thomas 'Plec' Johansson and Ermin Hamidovic.
- VST3, AAX & AU 64-bit. macOS and Windows.
- 2 activations in your iLok account.
System Requirements
64-bit VST3/AAX/AU supported host. (VST, VST2, RTAS & 32-bit AAX are NOT supported)
a FREE iLok License Manager and iLok account is needed. Get one here. (dongle not required!)
macOS 10.11 or later, intel cpu.
Windows 7, Windows 8, or Windows 10 (latest Service Pack), Intel Core i5 or equivalent CPU.
An Internet connection and a graphics card that supports OpenGL 3.2 or higher are required to download and activate this product.
Once installed and activated, the product can be used offline.
4GB RAM Minimum (6GB+ recommended).
Not sure if you meet the requirements? You can trial Flatline for 7 days, risk free. Just click the 'Try' button at the top of this page.
FAQ
The use of an iLok USB dongle is optional. You can activate Flatline onto your computer.
Flatline comes with 2 activations in your iLok account.
Use the download link provided in your order confirmation to download the installer files. Run the installer. Make sure you have iLok License Manager installed and you have registered for a free iLok account
If you have any doubts that your computer is up to the task, try the demo first. Simply click the 'TRY' button at the top of this page and follow the prompts.
Any DAW that supports 64-bit VST3, AU or AAX should be capable of running Flatline.
If you are unsure, try the demo.
In house testing has Flatline working on the new M1 apple silicon macbook pro in Logic Pro X under rosetta. We are working on testing compatibillity in other DAWs, so for the time being we suggest you try the demo in order to confirm Flatline will work in your specific configuration.
macOS:
VST3 Library/Audio/Plug-ins/VST3
AU Library/Audio/Plug-ins/Components
AAX Library/Application Support/Avid/Audio/Plug-Ins
Windows:
VST3 Program Files\Common Files\VST3
AAX Program Files\Common Files\Avid\Audio\Plug-Ins
Presets & manual:
Documents/SubMission Audio
Delete the following files:
macOS:
Library/Audio/Plug-ins/VST3/Flatline.vst3
Library/Audio/Plug-ins/Components/Flatline.component
Library/Application Support/Avid/Audio/Plug-Ins/Flatline.aaxplugin
Documents/SubMission Audio/Flatline
Windows:
Program Files\Common Files\VST3\Flatline.vst3
Program Files\Common Files\Avid\Audio\Plug-Ins\Flatline.aaxplugin
Documents\SubMission Audio\Flatline