Combustor ($29.90) is a character compressor plugin for Windows and macOS. W. A. Production offers 10,000 free licenses available exclusively for Bedroom Producers Blog readers.
If you’re quick, you can grab your free copy of Combustor by signing up below. After signing up, you’ll receive a redemption key and a link to the instructions page. From there, you simply use the key to activate your license. Once redeemed, the plugin is yours forever!
I hope you’ll enjoy this exclusive freebie from W. A. Production. Let’s take a closer look at how it works.
Combustor is a dynamics processor that blends traditional compression with adaptive saturation.
Every compressor adds its own tonal character, either from analog circuits or digital modeling. Combustor takes this further by adding five types of saturation right into the compression stage.
You get all the usual controls like threshold, ratio, attack, release, and knee, plus RMS/Peak options and a sidechain mode for external triggers. I like that the controls have wide ranges, so you can go from gentle shaping to strong compression.
The saturation section is what makes Combustor stand out from regular compressors.
There are five models, labeled A to E, that go from gentle tube warmth to more aggressive, driven sounds. The saturation responds to both your input signal and compression settings, so the sound changes based on how much you push it.
You can blend in the effect using the dedicated Saturation control and fine-tune the overall balance with the global Mix knob for parallel compression.
The interface is dark, which is pretty useful for late-night mixing sessions, and I especially like the small touches that add convenience while mixing.
For example, the Input and Output sliders offer up to ±24 dB of gain adjustment, making level matching easy during A/B testing. The central stereo meters show gain reduction in real time and warn you if levels are running hot.
Combustor also includes a healthy collection of factory presets. They cover a wide range of use cases, from more assertive master-bus pumping to lighter dynamic control for vocals, drums, and bass.
Presets can serve as starting points for setting the tone by adjusting the saturation type, mix amount, and compression parameters to suit your material.
Additional features include pop-and-click-free bypass, a resizable interface, and CPU-friendly performance.
Combustor is available in VST, VST3, AU, and AAX formats for Windows 10/11 (64-bit) and macOS 10.15 or higher (64-bit), with AAX support for Pro Tools 12 or later.
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Last Updated on February 19, 2026 by Tomislav Zlatic.