Black Box Analog Design HG-2
Black Box Analog Design HG-2 is an AAX audio plugin developed by Plugin Alliance that emulates a high-end tube saturation processor. It models vacuum tube stages combined in series and parallel circuits, including emulated 6U8A pentode and triode tubes alongside 12AX7 tubes and virtual transformers, to add warmth, saturation and harmonic coloration to individual tracks and mix buses. The plugin is used by professional mix engineers and is available in AAX Native, AAX DSP, AU, VST2 and VST3 formats. It runs as a plugin inside Avid Pro Tools and other compatible DAWs.
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1 suggestionBlack Box Analog Design HG-2 added native Apple Silicon compatibility for AAX in version 1.9.0 (August 2023) and has been actively maintained since, with recent updates in January 2026 confirming ongoing development. To update to the native AAX build, download and run the Plugin Alliance Installation Manager from the Plugin Alliance website, select the HG-2 plugin in the manager, and choose the AAX Native format. The Installation Manager will automatically download and install the native arm64 build alongside any other Plugin Alliance plugins you use. Ensure that your copy of Pro Tools is also on a current native build (Pro Tools 2023.6 or newer) for full compatibility with native AAX plugins. If you have not yet updated Pro Tools itself to a native version, do that first via the Avid Application Manager, then update the HG-2 plugin through the Plugin Alliance Installation Manager.
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