Restore normal OS 10.11.6 system sound prefs after uninstalling Boom 2?
I'm running OS 10.11.6 on a classic mac pro. Recently I installed Boom 2 demo and then used the included uninstaller to uninstall Boom 2. After Boom 2 had been uninstalled I noticed that the system preferences for sound was missing "internal speakers" option.
How can I restore system sound prefs to normal options. Why is there no "internal speakers" option in sound prefs? How do I fix this and choose "internal speakers" output.
Mac Pro, OS X El Capitan (10.11.6), 16 GB RAM, Boot 250GB SSD