Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007
posted October 03, 2017 02:52 AM
Chip I assume you mean the 2-set which clip together for storage. 1) For use with a stereo projector, one for left channel and one for the right channel. 2) For use with a mono projector plug the one with an outlet socket to the projector, and then plug the second speaker into the first one.