Master-Sub module contains both Master and Sub main outputs.
It provides also two stereo outputs (Rec 1 and Rec 2) that can be configured to
operate in either of two modes: as a second SUB output or as a second MASTER
output (f.i. serving as a second stereo output for on-air use).
As well as having its own independent output with overall Fader control, the Sub
signal can be also routed to the main (Master) programme output, allowing it to be
used as audio subgroup primarily for production applications.
The pre-fader Sub signal is also available for monitoring.
Both the Master and Sub Main outputs can be independently switched in Mono
mode.