The UL22/70/JB is a complete 2' x 2' UL listed fire signaling device with built-in junction box for mass notification & emergency communications providing superior voice intelligibility performance, shallow depth, lightweight, fire-protective signaling device. Components include: an 8" O.D. loudspeaker, 10-oz. magnet, fire retardant loudspeaker with a 4W-70V rotary select transformer and integral junction box for secure and inspectable connections. Grille is perforated steel with four (4) seismic tie-off points in a white powder coat finish. Line supervision capacitor is included. No assembly required.
- Sound Pressure dB-SPL@ 10 ft. per Tap – 1/4=78.5, 1/2=81.3, 1=84.1, 2=87.2, 4=89.8
- Loudspeaker Power Rating – 20W RMS, EIA 426A Standard
- Magnet Type & Weight – BeFe Ceramic, 10 oz. Nominal
- Frequency Response – 60 Hz - 17 kHz EIA 426A Standard
- Nominal Coverage Angle – 100° Included Angle, -6 dB / 2 kHz, Half space
- Audio Connection – Common : Dual, color-coded leads, pre-cut