bx_stereomaker
bx_stereomaker is an M/S (mid/side) upmixing plugin from Brainworx, distributed through Plugin Alliance, that converts mono audio signals to stereo while maintaining full mono compatibility. It uses analog-style digital filtering to create a virtual side channel, allowing users to adjust stereo width from 0% to 300%, focus the effect on specific frequency ranges, and solo the synthetic stereo component. The plugin is commonly used in mixing and mastering to add spaciousness to mono vocal, guitar, synthesizer, and instrument tracks without sacrificing their center punch. It is available in VST2, VST3, AU and AAX formats.
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1 suggestionbx_stereomaker has shipped with native Apple Silicon support since version 1.13 (released March 2022) for VST3, VST2 and AU formats, and added native AAX support in version 1.14.0 (August 2023). If you are running an older VST build under Rosetta 2, update through the Plugin Alliance Installation Manager, which is the official distribution and licensing tool for all Brainworx and Plugin Alliance plugins on Mac. Download the latest Installation Manager from plugin-alliance.com, launch it, select bx_stereomaker, and let it install the current native build for your host format. You can also update through a Plugin Alliance account if you have one. The Installation Manager will automatically serve the native Apple Silicon version on M-series Macs, so no special settings are needed. If you prefer to manage Brainworx plugins as part of a broader subscription, they are also included in the Plugin Alliance bx_bundle subscription.
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