JBL SYN 3 - Manual (Page 8)

due to the presence of windows, fabrics, furniture, or other absorption, it may be nec-
essary to turn the ambient speakers sideways, and instead of bracketing them in a
vertical orientation, hang or mount them from the ceiling in a horizontal orientation.
Although identical drivers are used on both sides of a surround speaker, it is important
to have a particular side facing the wall with the screen. Remove both grilles covering
the transducers and locate the side that has a port tube on it. Make sure that this side
faces the front of the room, or the wall that the screen is on. If you are mounting the
speakers on the wall, it is recommend that you use the mounting brackets that are sup-
plied with them.
NOTE: Do not attempt to install any type of mounting bracket that is not supplied
with the speakers. Drilling holes in the product or improperly installing mounting
brackets may void your JBL warranty and cause a safety hazard.
A JBL factory authorized custom installer can suggest and install appropriate
brackets. Contact JBL and your installer/dealer for additional information.
6