The VC3xx2 series are 100-volt in-wall volume controllers that allow the volume of 100-volt speakers to be adjusted in 11 3-dB steps. They feature a slim, attractive design and are constructed from durable ABS, making them suitable for large projects in industrial environments as well as for standard home interiors.

An integrated 24-volt relay allows the volume controller to be overridden in priority situations, ensuring the message is always heard clearly at maximum volume. Connections are made via screw terminal blocks, and flush- and surface-mount enclosures (WB3102) are available separately.