Vseries Panels have a on-board DSP mixer. The mixer can be configured in ECS to provide additional audio routes within the panel. Local panel inputs like microphone , headsets , external I/O  can be routed to any local panel output like loudspeaker, headset, matrix comms or external I/OThe DSP mixer also provides gain and microphone limiter / compressor options. The first column in the input area lists all the inputs that may be available in the configuration. All of the possible inputs are listed below but some inputs may not be available depending on which input/output interface options have been selected in ECS matrix hardware menu.  DSP mixer settings maybe changed using the ECS On-line feature or saved to a file and re-loaded into other panels.         This input takes audio from the headset1 microphone. This input takes audio from the headset2 microphone. This input takes mono audio from the analogue matrix   connection if the Basic Layout is being used This input uses the External Input 1 on the auxiliary audio connector.
This input uses the External Input 2 on the auxiliary audio connector.
 This input uses audio from the listen again facility.