FederalSignal
R4NB Back box, for ceiling amplified speaker, 4" Model 50GCB
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R4NB Back box, for ceiling amplified speaker, 4" Model 50GCB
Model 50GCB is designed for areas without high ambient noise levels, such as offices, hallways and receptions areas. The baffle allows the four-inch speaker to be installed easily in any suspended ceiling plenum with a Model R4NB backbox.
