Main Check: The Plain-English Mix Assistant (VST3 / AU)

The Story

If you look at the master bus of a professional mix engineer, you will see a mess of scientific tools: phase correlation meters, fast-fourier transform graphs, and lissajous figures. They are incredibly powerful, but they require you to translate complex visual squiggles into actionable mixing decisions.

Main Check is different. Acting as an intelligent safety net on your Master track, it continuously analyzes your audio across four critical domains.

Originally built natively for Ableton Live, this fully standalone VST3 and Audio Unit version brings the exact same plain-English diagnostic engine to Logic Pro, FL Studio, Cubase, Studio One, and any other compatible DAW.

Key Features

• Universal Compatibility: VST3 and AU formats support almost every major DAW (Note: AAX for Pro Tools is not currently supported).
• Stereo & Phase: Context-aware width detection that warns you about phase cancellation, weak centers, and muddy bass.
• Tonal Balance: Compares your frequency distribution against predefined genre profiles.
• Custom 'Learn' Mode: Feed the plugin your favorite reference track, and it will memorize its frequency footprint so you can match it perfectly.
• Dynamics: True Stereo RMS calculation that spots dangerously high transients or heavily over-compressed 'sausage' waveforms.
• Technical Health: Surgical brickwall filters catch invisible sub-rumble, DC Offset, and Hidden Clipping (Intersample Peaks) before you export.

Watch it in Action