You
can play sound through the projector's speaker system if your video
source has audio output ports. Connect the
projector to the video source using an RCA audio
cable.
Connect the audio cable to your video source's
audio-out ports.
Connect the other end of the cable to the
projector's Audio port or
ports.
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Cinema 660/760HD
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Cinema 1060
Note: To add
additional sound, connect your video source and speakers to an
audio video receiver, then connect the receiver to the projector
using one of the receiver's compatible video outputs (an HDMI
connection provides the best image quality, if available). You can
also connect speakers to any video source that has its own speaker
connections.