iZotope Ozone 9 Advanced is a previous version of iZotope’s mastering suite, released in October 2019; the current version is iZotope Ozone 12 Advanced. It brings more than a dozen mastering modules, the Master Assistant and the new Master Rebalance and Low End Focus together in one plug-in or a standalone app, for producers who master their own tracks. It runs on Windows 7, 8 and 10 and on macOS 10.14 Mojave to 13 Ventura, on Intel and Apple silicon Macs.
iZotope Ozone 9 is a previous version
The version in iZotope’s Ozone 9 user guide is 9.13.0. iZotope followed Ozone 9 with Ozone 10 in 2022, Ozone 11 in 2023 and Ozone 12 in 2025. iZotope does not list Ozone 9 for macOS 14 Sonoma or later, so on a newer Mac choose Ozone 12. Ozone 9 is the last Ozone with the standalone Ozone app.
What’s new in Ozone 9
- Master Rebalance (Advanced only): change the level of vocals, bass or drums in a finished mix without the stems
- Low End Focus (Advanced only): adds contrast and definition to the low end
- Match EQ, new in Ozone 9
- A bigger Master Assistant with a Vintage mode, from warm analogue character to clean loudness for streaming
- Tonal Balance Control talks to more iZotope plug-ins in the session
- Better plug-in performance, smooth metering and resizable windows
What’s included
The Ozone 9 plug-in and the standalone app, with the Master Assistant, signal chain, Referencing, Codec Preview and Dither. Advanced includes these modules, each also as its own plug-in: Dynamic EQ, Dynamics, Equalizer, Exciter, Imager, Low End Focus, Master Rebalance, Match EQ, Maximizer, Spectral Shaper, Vintage Compressor, Vintage EQ, Vintage Limiter and Vintage Tape.
Ozone 9 Standard vs Advanced
Standard has Dynamic EQ, Dynamics, Equalizer, Exciter, Imager, Match EQ, Maximizer, the four Vintage modules, Dither and Referencing. Advanced adds Low End Focus, Master Rebalance, Spectral Shaper, Codec Preview and the separate component plug-ins.
System requirements
- Windows: Windows 7, 8 or 10
- macOS: 10.14 Mojave, 10.15 Catalina, 11 Big Sur, 12 Monterey and 13 Ventura (Ventura from 9.13.0); not listed for macOS 14 Sonoma or later
- Mac CPU: Intel or Apple silicon (native from 9.12.0, AAX native from 9.13.0)
- Formats: the standalone app, plus VST3, VST2, AU and AAX plug-ins (VST2 runs in Rosetta on Apple silicon)
Next version: iZotope Ozone 10 Advanced. Browse more mixing and mastering plugins or everything from iZotope.

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