I've had a lot of time with armory crate, happen to have the theta, fusion 500 ii right now, I've come across quite a few problems and due to little to no feedback from the company, most solutions are gonna be community driven.
Must fully run the uninstaller reboot then extract the full installer and run as admin. If need be, only select the theta 7.1 install that then run the armory crate installer from the myasus and that'll download the rest of peripherals
The subwoofer was present on the centurion and strix 7.1, both older true surround Asus released prior to the theta, and due to the smallish housing of the drivers when the subwoofer would hit- it would actually create such a force it would distort t...