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First, navigate and open System Preferences (typically can find it in the Dock, it's a Gear icon)

Second, double click on "Sound". Once in the "Sound" window, you will notice at the top there's a tab labelled "Output." Click that, and select the EPSON Projector Audio HDdbit output. 

After doing these steps, you should hear the sound come through your projector speakers. If you have any further troubles, please put in a Tech Ticket to let us know.

Another way (and a bit easier) to get to Sound Preferences is as follows:

~Sincerely, The CCA Technology Team