FireMaximizer, a maximizer plugin developed by United Plugins (FireSonic), is being given away for free for a limited time as part of a collaboration with the Japanese producer Shiyuu.
In this article we cover how to claim FireMaximizer for free and what the plugin brings to your mixes and masters.
What Is United Plugins / FireSonic FireMaximizer?
FireMaximizer is a maximizer plugin loaded with four algorithms — clipper, saturator, limiter and multiband limiter — that can be blended freely, letting you decide exactly how much digital grit, analog character and transparency ends up in your sound. It is normally a paid plugin, but thanks to the collaboration with Shiyuu you can get it for free until October 18, 2026 by applying the dedicated coupon code posted in the video description.
The plugin grew out of a simple question: limiters can sound too smooth and clippers too aggressive, so what happens when you combine the two? It works just as well on the master bus as it does on individual instrument tracks such as drums, guitars and vocals.
Key Features
- Four algorithms — clipper, saturator, limiter and multiband limiter — that can be blended to shape the balance of character
- Covers everything from transparent to brutal: the clipper and saturator add punch and aggression for modern metal and EDM, while the limiter delivers a clean, transparent sound for ambient, classical and pop
- Usable on the master bus as well as individual tracks such as drums, acoustic guitar, electric guitar and vocals
- Up to 16x oversampling
- Internal 64-bit audio processing, supporting all sample rates including 192kHz and above
- No iLok or dongle required. Activation needs no internet connection and uses a license file, so you can use it on every computer you own as long as you are the user
- Photorealistic 3D GUI that can be resized freely by dragging the arrow in the bottom right corner
- Smart Bypass: no click noise when automating parameters, and latency is compensated
- Intelligent Sleep: automatically detects when no processing is needed and temporarily enters sleep mode, dropping CPU usage to almost zero
- Free lifetime updates
How to Download and Install FireMaximizer
To claim the plugin you need the dedicated coupon code listed in the description of Shiyuu’s video. Head to the video and check the description for the free FireMaximizer coupon code. The offer is limited and runs until October 18, 2026.
- Copy the free FireMaximizer coupon code from the description of Shiyuu’s video
- Follow the FireMaximizer link in the description to the product page and add the plugin to your cart
- Apply the coupon code, confirm that the order total has dropped to zero, and place the order
- Download United Plugins’ plugin management app “UnitedPluginsManager” (Windows / Mac), then install and activate FireMaximizer through the app
That wraps up the free giveaway info for FireMaximizer. A four-algorithm maximizer with lifetime free updates and no iLok requirement is a serious addition to any mastering chain, so be sure to claim it before the offer closes on October 18, 2026.