Siemens SPB-80/4E-B

DescriptionSupervised Facility Communication and Emergency Voice Evacuation Audio and Audio/Strobe Power Boosters, UL Standard 1711 and UL Standard 864, 9th edition with 24VDC battery backup capabilities. Designed to provide for additional supervised audio power for live voice, pre-recorded messages or background music (BGM). Fully supervised patent pending circuitry is always in effect even during BGM. 80 Watt Supervised Audio Power Booster with 4 Amps of Supervised and Synchronized Strobe Power (Two 2 Amp circuits), 220 VAC, black enclosure