Bogen's explosion proof speaker horns provide high intelligible sound in critical facilities requiring explosion proof rating. These Speaker Horns are designed for potentially explosive atmospheres and harsh industrial and marine environments. Designed for applications including Petro Chemical, Off Shore, and anywhere UL listed Class I, Div. 1 & 2, Groups C & D devices are required. We carry brands from Bogen, MEDC, Guardian and Atlas. We carry both 25V and 70V speaker horns. Need help with an application or a free design? Call us at 800-335-0229