Creating a Virtual S Channel!

The bx_stereomaker is a frequency-optimized M/S upmixing plugin that converts ANY mono signal to stereo, while keeping them 100% mono-compatible!

How many times have you had to deal with a signal that just won't fit in the mix because it's mono? But with modern mixes becoming both tighter and wider, adding reverb or modulation effects can easily destroy the tight center of a mono lead vocal, guitar, or synth track. Still, you need to process and spread those sounds to lay them perfectly into the mix.

bx_stereomaker can help.

bx_stereomaker creates a virtual S signal with analog style filters using Brainworx legendary M/S stereo algorithms. This plugin will take any mono signal and make it stereo while allowing you to balance the center position. You can even focus the process on specific frequency ranges in your signal. And you can solo the virtual S signal!


  • Adjust the stereo-width added to the mono source signal from 0% to 300%
  • Hi-Damp knob allows you to create a warm sounding stereo expansion without sounding tinny
  • The plugin creates a virtual S channel (which you can solo)
  • The results are spectacular, and your signal stays 100% mono-compatible!

Audio Examples

Industry Reviews

  • Steve Mac

    Steve Mac

    Songwriter/Producer (Rhythm Masters/Bunker Recording Studios)

    bx_stereomaker is one of the only plugins that can take a mono signal and make it super stereo. Very handy tool.

Customer Reviews

  • Handy

    by Henrik
    Really handy plugin! Great for achieving subtle->extreme width on mono recorded tracks, e.g. acoustic guitars, violins, drum room mic etc. without messing up the timbre of the sound. Very useful… Read More
  • Still great

    by Control Freak
    So I am somewhat torn concerning this plugin. That is because there are many plugins out there that are much more fully featured than this while also cheaper in many cases. However, I bought this… Read More
  • Vicsaund

    by Vicsaund
    Make of Mono in Stereo !!!
    Works in all frequency bands
    Quickly, simply, effectively, "and not expensive" :)
    Thanks developers!
  • bx_steremaker

    by C Campbell
    This plug in an absolute game changer.
  • awesome!

    by miclevine
    I figured I had all the plug-ins I need, but I tried this when it was on sale, and I love it! I have other stereo field plugins, and I've done the aux send with a few ms delay panned opposite, but I… Read More


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

Supported Operating Systems
Mac OS X 10.9 through 10.13
Windows 7 through 10
Pro Tools 10.3.10 or higher or most VST/VST3/AU-compatible hosts running on a supported operating system

Intel CPU only (minimum 2 GHz recommended)

Intel-compatible CPU with SSE2 instruction set (Pentium 4 compatible or higher; minimum 2 GHz recommended)

System Requirements
Display resolution: 1440 × 900px or 1280 × 960px or higher
Memory: 2 GB RAM


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