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DK 20 PA OR is a modern efficient horn loudspeaker of oval shape. It has been designed for the processing of voice announcements or background music indoors or outdoors. It has a high protection class of IP 66 and is equipped at the back of the enclosure with a power tap regulator which is convenient for both the installer and the user. Power adjustment is possible in steps of 20/15/10/5 W. DK 20 PA OR is equipped with 100 V transformer.