Wall-mounted pa volume controls with 24 v emergency priority relayattenuation in 10 steps, position 0 is offfor 100 v line techniquewhite plastic front panel and knobalso suitable for already existing series of switches with standard cover frames cutout:
Wall-mounted pa volume controls with 24 v emergency priority relayattenuation in 10 steps, position 0 is offfor 100 v line techniquewhite plastic front panel and
