Federal Signal Models AM300GCX and AM302GCX are rugged, transformer   coupled, re-entrant speakers for use in public address or paging   applications. These speakers feature rugged cones and projectors   constructed of spun aluminum. The wiring connections are enclosed in a   dust- and moisture-proof, die-cast aluminum compartment.  All external   surfaces are finished with a gray powder coat paint.
            Power handling for the AM300GCX is 15 watt and the AM302GCX is rated for   30 watt. There are transformer taps at 15, 9, 3 and 1.5 watt in the   AM300GCX and 30, 15 and 9 watt in the AM302GCX. Both speakers are   designed for use in 25 or 70Vrms distributed systems. Both models are UL   and cUL Listed for Class 1, Division 2, Groups A, B, C, & D; Class   II, Division 2, Groups F & G; and Class III environments.  The   design and seal of the speaker assembly and housing have been tested and   approved by UL for Type 4X requirements.
            Four screws inserted through the metal tabs located at the side of the   housing make for a simple wall mount. The bottom of these speakers   contains two 1/2-inch conduit openings in the base of the housing to   accommodate inbound and outbound audio wiring. The unique shape of the   speaker projectors provides an impressive 60º sound dispersion pattern.   The projectors are  held in position with a Teflon coated lock ring that   can be rotated 180º in order to obtain the desired sound distribution.
            The AM300GCX and the AM302GCX can be used with the AudioMaster® CTS   series amplifiers and the AudioRouter™ to complete an industrial grade   public address system.