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Elixir V3

Limiter by Flux


Elixir is a novel kind of program limiter carefully designed to accomplish a truly pure natural sounding result without altering the nature of the audio material and its timbre.

Intended to fulfill the requirements of the broadcast, post-production and mastering industry, Elixir provides real True Peak output level in accordance with the ITU-R BS.1770 and EBU R128 norms, and for surround/multichannel operation Elixir provides up to eight channels of simultaneous processing.

User Interface and Workflow

Elixir’s straightforward interface makes it exceptionally easy to achieve great results, even under a tight deadline. Simply set the input level, adjust the Threshold according to the amount of limiting desired, and finally enable Make Up for gain compensation and loudness addition - That’s it!

For truly delicate and fine processing tasks (mastering etc.) Elixir presents a new innovative concept called Stages, providing the option to set the algorithm to perform the limiting processing in multi-stages, in order to achieve even more precise and natural sounding results.

Example: If the threshold is set to -3 dB and the ‘Stages’ parameter set to 3, the first stage will limit at -1dB, the second stage will limit at -2dB and the third will limit at -3dB, with analyzing performed in each of the three stages.


The algorithm uses an oversampled representation of the audio sample as reference when defining the gain envelope, while the actual processing is applied only to the original none oversampled data, in order to reduce artefacts (like aliasing) and to achieve the most precise and excellent sounding result presenting none, or effectively reduced, conventional limiting pumping effects even during heavy processing.

In addition to Stages, Elixir present the option to run the algorithm in a higher resolution mode with even more detail put into the processing, obviously, at the cost of additional CPU-consumption.

Elixir v3 AU & VST Native Specifications

  • Support up to 4 stages
  • Support up to 384 KHz
  • Support up to 8 channels


  • True Peak level metering and limiting
  • ITU-R BS.1770 compliant
  • EBU R128 compliant

Signal Processing Features

Input/Output gain controls for adjusting the levels before and after processing. Bypass routes the incoming signal direct to the output for a true smooth transition between processed and clean signal.

Preset and Parameter Handling

To enhance the workflow the two Preset/Parameter slots, A and B, can be loaded with two full set of parameters at the same time. Apart from saving each preset, a "Global Preset" containing both the A and B settings, and the position of the "Morphing Slider", can be saved.

Parameter Morphing Slider with Automation

The Morphing Slider provides morphing between the parameter settings of slot A/B allowing for really creative and useful real-time tweaking. Enabling the Automation control button exposes the Morphing Slider to the host automation.

System Requirements


Elixir v3 is available in:

  • AU / VST / AAX Native / AAX DSP / AAX AudioSuite
  • Merging VS3 MassCore/Native**

Processing Specifications

Elixir v3, as all Flux:: plug-ins, provide

  • Up to 8 channels Input/Output.
  • 64-bits internal floating point processing.
  • Sampling rate up to 384 kHz DXD (Pyramix & Ovation MassCore/Native)**
  • Sampling rate up to 192 kHz for Native (AU/VST/AAX/AAX AudioSuite).


All major native formats as well as AVID AAX DSP are supported

  • Windows - XP, Vista, 7, 8 and 8,1 all in both 32 and 64 bits*.
  • VST (2.4)
  • AAX Native/DSP*
  • AAX AudioSuite*
  • Merging VS3 (Only in Windows 7 32/64 bits)**
  • Mac OS X (Intel) - 10.7, 10.8, 10.9 and 10.10 in both 32 and 64 bits*.
  • VST (2.4)
  • AU
  • AAX Native/DSP*
  • AAX AudioSuite*

* Elixir v3 AAX Native/DSP & AAX AudioSuite supports 32 bit in Pro Tools 10.3.5 and 64 bit in Pro Tools 11.

**VS3 32/64 bit versions for Pyramix 9 & Ovation Native/MassCore available only through Merging Technologies

Due to AVID ProTools changing to AAX, from Version 3 (v3) RTAS for AVID ProTools is no longer supported.

Software Licence Requirements

In order to use the software one of the following alternatives is required

  • An user account (the iLok USB Smart Key is not required).
  • A Flux:: USB Dongle (Available in our online store).

Product Reviews

  • Pro Tools Expert review : Flux Elixir

    Flux have been busy recently and have released a new true peak limiter Elixir aimed at the audio post production market for those producing content...

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