How to Download and Install Waves V9 Plugins: A Legacy Guide
Waves V9.6: The last version to support macOS 10.8.5 and 10.9.5.
Logic Pro Users: After installation, run the Waves AU Reg Utility V9 (found in Applications > Waves > Waveshells) to ensure your DAW recognizes the plugins. Critical System Compatibility Notes System Requirements | Support - Waves Audio
to move your licenses from the cloud to the drive before proceeding with the legacy installation. Run the Legacy Installer
Are you trying to install these on a newer 64-bit system or a legacy 32-bit machine? Waves plugins require frequent paid updates - Facebook
The only safe and legal way to download Waves v9 plugins is through official Waves channels. However, there is a catch: Waves no longer sells v9 licenses outright.