Allen&Heath XB-14-2 - Manual (Page 18)

Allen & Heath 19 XB-14 MK2 User Guide
TELCO CHANNELS
TALK
The TALK switch enables the presenter or operator to communicate with
the telephone caller with the presenters channel fader down so the pre-
senters voice does not go to the program mix.
The source for the TALK signal is one of the mono channels, pre-selected
by links set within the XB-14, the factory default is mono channel 1. The
signal source is pre-fade and pre-mute on the selected mono channel.
AUX
This control sends a signal to an auxiliary bus. The signal is sourced pre-fade
or post-fade depending on the PRE switch position. The pre-fade source
selection will be affected by the channel ON/OFF switch if active. The send
control varies the signal level to the bus from off (fully attenuated) to +6dB,
with unity gain at the arrow.
CLF SCE
The Clean-Feed Source switch selects the signal source for the TELCO
cleanfeed output. With both buttons in the up position the signal will be the
entire program (PGM) mix (pre main PGM fader) but without the signal
from the input on that TELCO channel, so the caller does not hear any dis-
tracting echo of their voice.
If the AUX or AUDITION switch is pressed, the TELCO clean feed signal is
sourced from the selected bus, but minus the signal sent from that TELCO
channel.
This is a really useful feature that can enable the operator to send a mix of
signals from different channels to the telephone caller, the sources may be
on or off air because the sources for the AUX bus can be pre or post fader
or the Audition bus can be used.
In addition, The telephone conversation could be recorded off air using the
audition or aux buses, and replayed at a later time.
MIX B
The MIX B switch routes the channel signal to a stereo bus which is inde-
pendent of the main PGM (program) and audition buses. The signal is post-
fade and follows the PAN control. The MIX B bus can be used for creating
mixes for recording or clean-feed sources for external equipment.
PAN
The pan control adjusts how the signal from the TELCO input channel is
shared between the left and right sides of the PGM, audition and MIX B bus-
es. Set to the mid position, equal amounts of signal are fed to left and right,
with pan set to L, none is sent to the Right bus.
L R
PAN
=
TALK
O O + 6
PRE
CLF SCE
BUS
AUX
MIX B
AUDITION
PGM
AUX