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  • Overview
  • Customer Reviews
  • 4.8/5
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Regular Price: $299.00


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Add tube compression royalty to your mixes.

As Manley Labs' flagship compressor since 1994, the Vari Mu is a tube and transformer-driven classic that exudes handmade craftsmanship and is the gold standard among mixing and mastering engineers. The Manley Variable Mu Limiter Compressor plug-in gives your stereo buses or your entire mix the same clarity and cohesion as the high-end hardware.

Included Versions

UAD Native
Runs on your Mac or PC without UA hardware.

Apollo Realtime & UAD‑2
Runs accelerated on Apollo interfaces and UAD‑2 hardware.

UAD Native plug-ins run on both macOS 10.15 Catalina or newer and Windows 10 and 11. Go to our UA Support page for system requirements.

  • Add definition and fidelity to individual tracks, stereo buses, or an entire mix
  • Glue together difficult mixes with signature Manley tube compression
  • Link channels for a precise, perfectly matched stereo image
  • Select from Left/Right or Mid/Side operation for precise control of stereo imaging
  • Use the plug-in-only Dry/Wet Mix control to easily dial in parallel compression

Want to Try It?

Use this plug-in free for 14 days and find out if it's right for you.

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Easily Add Stunning Polish

Easily Add Stunning Polish

Treat your source material with velvety-smooth gain reduction, while infusing warm harmonic content, free of audible compression artifacts with the Manley Vari Mu Limiter Compressor plug-in and add a variable gain compressor with stunning transparency to your studio.

Enhance Tracks and Glue Mixes

Enhance Tracks and Glue Mixes

The Manley Vari Mu Limiter Compressor plug-in can be used on single instruments such as bass or a lead vocal, or on subgroups like strings or horns. But its raison d'être is on the mix bus, where it can unify your mixes with a rich, hi-fi fit and finish.

Polish your Mixes with Powerful Controls

Polish your Mixes with Powerful Controls

Parameter linking allows simultaneous adjustment of both channels with stereo signals. When unlinked, the plug-in's Mid/Side processing is improved over the hardware, giving you phase accurate stereo imaging. Use the High Pass Sidechain filter to reduce low-end pumping — letting you compress, say, overheads, while retaining punchy bottom-end. Dry/Wet Mix offers easy parallel compression — perfect for polishing vocals and more — while Headroom lets you optimize the Variable Mu’s overall level to your playback system.

Customer Reviews

Manley® Variable Mu Limiter Compressor

Overall Rating



July 12, 2024


Nice sound! Favorite plugin!


July 12, 2024


Nice sound! Favorite plugin!

D. Baj

July 7, 2024

This plugin adds noise/hiss to the signal

I am super upset that I haven’t properly tested the plugin before purchase, There should be an option to disable the noise in a digital recreation of a plugin. Useless for me .

D. Armijo

July 1, 2024

Gentle warmth:

The Manley Variable Mu Limiter Compressor is like a warm hug to my tracks and master bus


June 28, 2024

Best Compressor!

I like !!!


June 25, 2024

This sounds just like ...

This sounds just like something else. Better than everything else I own.

T. bryan

June 13, 2024

Just like the real thing

Perfect in every way

F. N

June 13, 2024

Best Plugin!

I like it!

o. camacho

June 12, 2024


es impresionante la calidad de este producto me encanta

P. Vance

May 30, 2024

Manley® Variable Mu Limiter Compressor

❤❤❤❤❤❤❤❤❤ I love sound. The Look, and Feel of it's characteristics. Just Lovely


April 24, 2024


This should be one of the closest to the original sound, there might be some differences that make it better in other aspects, but it's also about the subtle differences

J. Ruziev

April 21, 2024



R. Fukui

April 15, 2024

Impressions when using it for the first time

I had a strong impression that the stable operability and effectiveness were reliable.

W. Rice

April 13, 2024

polished finish

the finisher, that analog flavor

A. Mavashev

April 11, 2024

My go to

Its my go to compressor on my main mix as bus and definitely keys drums and guitars

J. Makhaisingh

April 10, 2024

This is The Real Deal !!

As a owner of the Vari MU mastering version, I can only say that this plug in is very very close to the real hardware unit. May a 10% less than the character of the hardware, but just really close in every character.
And I must say I love it, its just easy to dial in on a bus or entire mix...a really game changer!


O. Rosell

April 10, 2024


Es un gran producto en realidad lo recomiendo

A. Mavashev

April 10, 2024

Exactly what i needed

Great for guitars and keys when i need to limit or level up

F. Nguyen

April 8, 2024

Good sound!

Feel subtle!

d. Music

April 6, 2024

My first choice compressor

Love it so much !!!