UHT70C-U51-8 8" Loudspeaker for Fire Protective Signaling with 70.7V-5W Transformer and U51-8 Baffle made by Atlas Sound.
This 8" diameter single voice coil loudspeakers equipped with dual (whizzer) cone and 10 oz. ceramic magnet to deliver extended frequency response with high intelligibility and minimal distortion. Cost-effective units are complete with fire-retardant moisture-proof cones, factory-mounted 70.7V transformer, 6" color-coded leads, DC blocking capacitor and a 51-8 baffle.
To comply with UL requirements, loudspeaker packages must be used with UL-approved enclosures