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The gravitas MDS Black Friday deal takes 53% off Fiedler Audio's compressor and expander plugin, bringing it to $93 until Dec 6, 2026.
The maker built it with mastering in mind, but it also works on single sources, groups, buses and complete mixes.
In plugin mode, gravitas MDS accepts anything from a single mono channel to a full 64-channel input. In Reaper on Mac as an AU, that goes up to 128 channels.
The maker says that with gentle settings it sounds transparent, as if it were not there, while still bringing the dynamic range into shape.
Push the settings harder and it can squeeze drums for a lot of punch. Everything between those two extremes is available too.
Fiedler Audio describes it as having everything you need for shaping dynamics, plus features you will not find in other dynamics processors.
There is more. Channel linking and peak mode are both gradual rather than on/off. Parameters can be linked across every instance in your session.
Surround work gets manual LFE volume adjustment. The external side chain takes up to 64 channels, depending on your DAW.
The input configuration dialog covers both processing and detection, which matters most on multichannel signals.
On the screen, meters, an amplification curve and a moving level curve show you what the dynamics are doing as it happens.
It also runs as a master channel module inside the Dolby Atmos Composer v1.5 and the Mastering Console.
There it can process all 128 channels of a complex Atmos mix, beds and objects included.
The maker calls it the first dynamics processor dedicated to mix bus and mastering compression for Dolby Atmos. Dolby Labs has approved and certified the integrated solution.
On Mac it comes as VST3, AAX and AU, and on Windows as VST3 and AAX. Sample rates supported are 48 kHz and 96 kHz.
Yes. The gravitas MDS Black Friday deal takes 53% off, so the compressor plugin costs $93. The offer ends Dec 6, 2026.
On Mac it runs as VST3, AAX and AU. On Windows it comes as VST3 and AAX. Supported sample rates are 48 kHz and 96 kHz, and the plugin needs OpenGL 3.3 or newer.
Up to 64 input channels in plugin mode, from mono and stereo upward. As an AU in Reaper on Mac it reaches 128 channels. Inside the Dolby Atmos Composer and Mastering Console it covers all 128 channels.
It is a mode for complex dynamics, inspired by the well-known AMEK mastering compressor. It sits alongside the curve editing, the separate processing and detection filters, and the limiter function for gain reduction and gain increase.
Prices and end dates are checked at publishing time and can change, so confirm them at the store before you buy.