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Gentex fire alarm strobe speaker SPK4-15/75CB nos

This is a Gentex brand designed to run off 24vdc systems (to power the strobe) and has a multitap transformer to drive the speaker. It has a strobe output of 15/75 candela and draws 120 mA of current.
The speaker will generate 75 dB when driven by the proper audio device. Note that there is NO SIREN module on this unit - it draws audio from a panel or other source, and can reproduce whatever the panel (or microphone) is sending - siren alert tones, voice instructions, etc. This has speaker power taps for 1/8, 1/4. 1/2, 1, 2, and 4 watts with 25 or 70.7 volt audio drivers. 400-4000 Hz range on the speaker. No paper manual. Manual is available online from Gentex or I can email a PDF copy.
Untested. Left over from a commercial installation.
Gentex fire alarm strobe speaker SPK4-15/75CB nos