The explosion-proof horn loudspeaker has been designed for use in hazardous areas of zones 1, 2, 21, 22 and in all temperature classes (environments with gases and vapours with an ignition temperature > 85°C and ≤ 100°C).

In addition, the extremely corrosion- and heat-resistant loudspeaker is particularly suitable for use in wide- area, loud and harsh environments and is characterised by high efficiency, excellent syllable intelligibility as well as good directivity.

In addition to central speech via power amplifiers, it can also be connected as a call loudspeaker to Neumann WFD ex-proof call stations.