Studer OnAir 3000 Operating Instructions Manual page 80

Functions for Stereo Inputs
Mode Selector
Document generated: 10.10.14
(see above)
Stereo signals can be processed in the following modes:
Mono Left and right channel are attenuated by 3 dB and mixed together
LR Normal stereo mode
RL Left/right channels are swapped
LL Left signal on both channels
RR Right signal on both channels. Phase inversion, in this case, is
applied to the right channel.
To indicate the current mode, the corresponding button is highlighted.
SW V6.0
OnAir 3000 Digital Mixing Console
Operation 5-17