Mosasaur Mono 1.30.101 — macOS release

Free dual-layer monophonic synthesizer for Apple Silicon, macOS 13 or later.
Audio Unit, VST3 and standalone application; 1,078 musical factory presets plus Init.

This release includes sample playback and a personal sample library, offline and live resampling, Voice and Lyric synthesis, master multiband effects, selective History, a separate Mixer and a five-view Analyzer. Voice is available directly from the oscillator Wave menu. The interface includes a horizontal DSP Load meter and corrected quality-status placement and Analyzer Scope Controls window ownership.

Documentation: 216-page illustrated user guide and 22-page illustrated Quick Start, with sound recipes and CPU advice. Included in the installer and available separately.

Installer 2 update — 28 October 2026
Installation now completes while Logic Pro or another audio host is open. Restart your host afterward when convenient to use the installed plug-in. The instrument, factory sounds and guides remain version 1.30.101.

Installation
Open the signed, Apple-notarized .pkg and install for your current Mac user. Logic Pro and other audio hosts may stay open during installation. The standalone app goes into your home Applications folder. AU and VST3 go into your user Library/Audio/Plug-Ins folders. Factory content and documentation go into Library/Application Support/Mosasaur Audio/Mosasaur Mono within your home folder. If your host was open, restart it when convenient and select Mosasaur Mono.

Updates preserve personal presets, samples, wavetables and preferences. Existing Mono plug-in bundles are backed up outside the plug-in scan folders. Original Mosasaur and Mosasaur Poly products remain separate. This download does not include Intel Mac or Windows builds, or Poly 3 / Full Poly modes.

Support: https://mosasaurlabs.com/support.html
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