Rolls RM424 Four Zone Installation MixerThe ROLLS RM424 Four Zone Mixer combines two paging microphones with two line level source inputs. Each input is switch selected to output to any combination of four zone outputs. The outputs are all balanced XLR connectors, Remote Volume provides each zone with the means for external volume control. The Microphone inputs feature selectable ducking for paging. Front panel speaker makes pre assignment monitoring for each channel possible with