Discover the power of Mid/Side processing with 23MS-ED, a free stereo tool that lets you reshape your mix with precision.
With separate controls for the Mid and Side channels, you can:
- Adjust Gain independently to balance your center and width.
- Add Pan Modulation for subtle movement or creative stereo effects.
Perfect for widening mixes, adding depth, or experimenting with stereo dynamics.
Want even more control? Upgrade to 23MS-ED Pro and unlock per-channel compression for advanced dynamics shaping.
Beta access on macOS. 23MS-ED is in open beta and not notarised by Apple yet — notarisation arrives with the stable release. Until then macOS keeps the quarantine flag it puts on every downloaded file, so there is one short step the first time you install.
Copy the plugin into your Components folder:
/Library/Audio/Plug-Ins/Components/
then run this once in Terminal to clear that flag:
sudo xattr -cr /Library/Audio/Plug-Ins/Components/23MS-ED.componentThat is all: macOS then loads it like any other plugin, and Windows needs no setup at all. If your DAW still does not list it, write to hi.23dsp@gmail.com with your macOS version and DAW — beta reports get priority.
23MS-ED is free. Downloads and updates come through Gumroad — if it earns a place in your projects, a contribution supports the work.
Download on Gumroad