The Metric AB plugin enables you to compare your mix to any reference mix with a simple click of the A/B button.

It is designed to provide you with a clear, intuitive workflow and unique analysis tools. Welcome to the new standard in mix referencing. Just put it on your master channel and switch between your actual mix and CD or iTunes mixes by your favorite engineers and bands, other versions of your mix, etc.

Drag and drop up to 16 reference tracks into Metric AB and take advantage of features such as instant volume matching, cue and loop functions and various monitoring modes. Playback of your reference mixes can be synced with your DAW to create the perfect workflow.

Get technical with more advanced features including multiple analysis modes (spectrum, correlation, stereo image) and industry compliant LUFS loudness and dynamics metering. With Metric AB on your master buss you get all the data you need about your mix and reference audio simultaneously.

Metric AB will play back various formats, like WAV, MP3, AIFF and FLAC! All from within your mix session.

Just put it on your master buss after all the processing plugins you use (limiters, EQs, etc.).

Metric AB offers professional LUFS metering, so it’s the perfect buddy for bx_masterdesk and other mastering solutions!


  • Compare your audio with the click of a button
  • Load up to 16 reference tracks in any format
  • Set loop and cue points that sync with your DAW
  • Five super detailed analysis and metering modes including LUFS

Customer Reviews

  • Best A/B tool So Far!

    by Anthony Lee
    This seems to be the most stable & accurate level matching tool available - the others I've used prior to this are a bit buggy or lacking in accuracy.
    This also has a huge wealth of features to… Read More
  • Matching Views

    by Metric AB
    Pretty nice design. I don‘t need further tools beside it to make it whole. What I‘d love to see in future though: Let us see the spectrum analyzer gainmatched too. That is crucial in my opinion… Read More
  • Aleksander Lisin

    by Very useful tool!!!
    Thank you PA for this A/B comparing meter. It's one of the rules - to use a reference tracks during the mixing. This tool helps you to do it very easy and quickly with many useful options.
  • Stand Alone

    by fivepeace
    Just Great !
    Nothing more to say ...
    The wishes for improvement in the comments here are on my list, too ... plus a STANDALONE Version.
    Thanks a lot!
  • Best of its kind AB plugin

    by Anthony Aks
    I can't not leave a review about this. The best plugin for AB comparison of all that I was able to use. Comprehensive analysis of the required parameters with excellent visualization. And all this is… Read More


Supported Plugin Formats
AAX Native, AU, AAX AudioSuite, VST2, VST3

MacOS 10.9 through 10.14
Windows 7 through 10
Pro Tools 11 or higher or most VST/VST3/AU-compatible hosts running on a supported operating system


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