MixRef is a free audio tool designed to help producers and engineers reference their mixes through various virtual speaker models. Utilizing convolution-based speaker modeling, it simulates different listening environments, allowing users to hear how their mix translates across multiple playback systems. This approach helps ensure a balanced and well-rounded sound in diverse listening contexts.

The software includes two separate plugins tailored for different use cases: one optimized for monitor speakers and another specifically designed for headphones. Each plugin offers distinct features and speaker models to provide an accurate representation suited to the playback method. Currently, MixRef is available as an AudioUnit plugin for Apple Logic Pro and other compatible applications on Mac OS X, with an optional VST version included though it remains in early testing with limited interface functionality.

As a beta release, MixRef is provided without any warranty and is distributed under the GNU General Public License v3, allowing users to freely redistribute and modify the software. Feedback from the community is encouraged to help improve its capabilities and user experience. Powered by SonicBirth, this tool is an accessible solution for those looking to enhance their mix referencing workflow on Mac systems.