I have a Late 2013 Mac Pro with Bose Companion 5 speakers which are USB speakers. I just purchased and installed Boom2 it configured the Bose speakers correctly. However, after launching Boom 2 to use an update was available and I downloaded it and I updated to the latest version, it then configured my Mac Pro's internal speaker. I don't see any way of switching back the configuration within the app and I don't see any help documentation/manuals on your site to address this situation. Would appreciate any help.