Answer

The Flex Channel feature on Q-SYS devices provides audio channels that can be individually switched between mic/line inputs and line outputs. The Flex Input and Output components provide the control and selection of the mic/line-level inputs and outputs on the device. The Flex Input/Output components convert the processed digital signal to analog and provides software controls before and after the convertor. Connections are made using three-terminal 3.5mm Euro style connectors.