Restoring QuantumENGINE to 1.19 from 2.0:

Please note: Before reverting to QuantumENGINE 1.19, please be aware that any settings from QuantumENGINE 2.0 will not be saved and reloaded into QuantumENGINE 1.19.

Uninstall QuantumENGINE v2.0 

1. Start the uninstall process. Go to: Settings -> Apps -> Installed Apps -> find "JBL QuantumENGINE" and select uninstall.
2. When prompted to uninstall, select “Remove all related settings” and click Uninstall

Install QuantumENGINE 1.19 

1. Click this link to download the JBL QuantumENGINE v1.19: https://support.jbl.com/quantum-engine-latest
2. Double-click the downloaded file "JBL_QuantumENGINE_1.19.0.2025_x64" and follow the instructions to finish the installation.
3. Restart the PC. 
4. Launch JBL QuantumENGINE and enjoy!