The control panel is bundled with the driver installer. Follow these steps for a clean setup:

The last qualified driver for Mac (Version 2.3.3) supports OS X 10.8.5 through 10.10.1. Modern macOS versions (10.11 El Capitan and later) are generally not compatible with the official control panel. How to Install the Control Panel

To ensure stability and access the integrated mixer, you must download the correct drivers from official repositories.