The "-WiN-" designation also speaks to the installation architecture. This version refined the VST3 implementation, offering better communication between the Windows OS audio sub-system and the plugin environment. For technicians managing studio rigs, this version is often cited as the most "stable" iteration of the Ozone 9 lifecycle before the transition to Ozone 10 and 11.

: Updated to handle read-only factory presets separately from user-defined presets.

The most significant feature in the Ozone 9 lineage is the . You play 15 seconds of your loudest chorus into the plugin. Ozone listens, analyzes the spectral balance, dynamics, and stereo field, and then builds a custom chain of modules with specific settings.