THX Onyx works right out-of-the-box with 3.5mm headphones and headsets with no drivers to install. Just plug and play! If you’d like to optimize your settings, we have several user guides and resources here.
Note THX Onyx for iOS requires the slim Apple Lightning to USB Camera Adapter (sold separately). All other Lightning adapters are incompatible, including the wide Apple Lightning to USB 3 Camera Adapter.