Assigning an Input Channel to an Output Bus – Switches at the top of the channel are used to select the output group routing

to either Program

Audition

or both output busses. Selecting the PGM and/or AUD buttons routes the channel audio to the PGM and/or AUD mix busses. The buttons illuminate green to indicate the routing status.
Changing the Input Level – Coarse gain is set using pre-set potentiometers on the channel circuit board which allow unbalanced inputs to be used on mono and stereo line inputs. The front panel TRIM control allows fine gain of ±12dB.
Changing the Signal Pan

or Balance – The BAL/PAN control is used on mono channels to pan the mono input signal in the stereo image and on stereo channels to balance the stereo image.
CUE/PFL (Pre Fade Listen) – Selecting the CUE/PFL button routes the pre-fader input signal to the monitoring system where the signal can be heard via headphones and/or loudspeakers. The button lights green when CUE/PFL is active and a jumper option is available to cancel the CUE/PFL selection when the fader is raised. This button works with both a momentary and latched operation – if held down

the selection is cancelled on release

otherwise the button is alternate action.
Fader Start & ON Button Control – The ON button works in conjunction with the 100mm long-throw carbon fader and is used to control channel remotes (e.g. starting a CD player)

routing and timers

etc. When unlit

the channel is off. Flashing red indicates that the channel has been selected to ON but not routed to either PGM or AUD. Steady red indicates that the channel is ON and “armed”

ready for the fader to be raised. Raising the fader changes the illumination to green indicating that the channel is live. Alternatively

with the button unlit the fader may be raised and the channel can be operated simply by selecting ON. The illumination in this case toggles between unlit (channel OFF) and green (channel ON).
Programmable Button Settings – To make the S2 modules as flexible as possible

every button on each channel can be set to a number of different modes to aid the use of the mixer and allow for extra functionality. Each button can be set to either operate manually

be permanently on

or permanently disabled. Also

the ON button can be configured to operate in a number of modes

altering remote start functions

and the channel ON function can be controlled remotely by automation playout systems

such as RCS® or VCS.
Scribble Pad – A scribble pad is provided at the bottom of the channel for user labelling of the channel function.