Allen&Heath GL2400 - Manual (Page 36)

36 GL2400 User Guide
Aux pre/post EQ Factory default for the mono
channel pre-fade auxes is pre-insert, pre-EQ. This is
popular with many users mixing monitors from FOH.
It prevents the channel EQ and inserted
compressors affecting the monitor mix. Move the
jumper from A to B to change this to post-insert,
post-EQ if preferred, for example when using
corrective EQ affecting FOH and monitors. Note that
auxes are always post-mute.
Direct output source Factory default is pre-
fader (as set for the pre-fade auxes). This is
common for live recording to multitrack. The live mix
fader movements do not affect the recording. Move
the jumper from C to D to change to post-fade.
Post-fade is appropriate when using the output as a
direct channel effects send.
Channel Aux pre/post settings Factory
default is Aux 1-4 = switched, Aux 5-6 = switched
pre/post fader. You can change these settings for
different combinations of permanent or switched
pre/post fade auxes by repositioning the links. Note
that these are solder links on the mono channels.
Refer to the system block diagram to explore the
possibilities. Make sure you set all mono and stereo
channels the same. To avoid possible future
confusion when the console is used by other
operators, we recommend you only change these
settings if absolutely necessary.
Stereo/Mono aux source The stereo
channels feed the auxes with a mono sum of L+R.
This can be changed so that L feeds the odd
numbered auxes, and R the even. This may be
preferred when using odd/even auxes as stereo
pairs. Factory default is the mono setting.
Talkback mic +48V Factory default is +48V
phantom power turned on for the front panel
talkback mic XLR input. The option jumper is behind
the TB mic XLR on the L Master board. If you prefer,
phantom power can be disabled by repositioning the
jumper to the GND position.
Note that phantom power should not harm non-
powered dynamic microphones as long as balanced
connections are used.
WARNING: Do not connect unbalanced
sources or cables to inputs with phantom power
selected. To avoid loud clicks do not press the
TALK switch when plugging or unplugging the
talkback microphone.
PRE-INSERT, PRE-EQ
POST-EQ
A=PRE EQ
PREFADE SEL
C=PRE
DIR O/P D C A B
MONO CH - DIRECT OUTPUT
PRE-FADE
POST-FADE
A=PRE EQ
PREFADE SEL
C=PRE
DIR O/P D C A B
MONO CH - PRE-FADE AUX SENDS
MONO CH - AUX PRE/POST FADER SETTINGS
AUX 6
SW PO PO SW
5 3-4
PR SW
1-2
PR SW
SW = PRE/POST SWITCH
PR = PRE-FADE
PO = POST-FADE
PR SW PR SW PR SW PR SW PO SW PO SW
6 1
A B C D E F G H I K L J
AUX 5 4 3 2
STEREO CH - AUX PRE/POST FADER SETTINGS
CN4
STEREO MONO
PRE-FADE AUXES
CN5
STEREO MONO
POST-FADE AUXES
STEREO CH - MONO/STEREO AUXES
JP2 JP1
GND +48V
PHANTOM POWER
L MASTER - TALKBACK +48V