GL2200
U
SER
G
UIDE
12
The 2 mid frequency bands
MF1 and MF2
can be swept across a wide frequency
range to tune into the exact frequency required; useful for getting the best out of
microphones or for tuning out troublesome feedback. The mid bands are
overlapping with a Q of 1.6 and can boost or cut in excess of +/- 15dB. The centre
flat position is detented for quick resetting.
Press
EQ IN
to switch the EQ into the signal path.
6 AUX SENDS
provide feeds for foldback monitors and effects.
Aux 1-4
and
Aux
5-6
may be set to pre or post-fader using the
PRE
switch.
Monitor sends to the performers are usually set pre-fade
(PRE)
, although some
sources such as radio mics are often set post-fade to avoid ‘dressing room’ talk
spill.
Effects sends to external signal processing equipment such as reverb and delay
effects units, are usually set post-fade so that the amount of effect (wet signal) is
always relative to the position of the fader (dry signal).
Adjust the amount of effect required for each channel using its
AUX
control.
The effect is returned to the mix through another channel, usually the stereo
return described later in this guide.
POST-FADE
sends are post-EQ, post-mute.
PRE-FADE
sends are set post-EQ,
post-mute as standard. Internal link options are available to change the source of
the pre-fade sends. Refer to the internal link options section in this user guide.
Note; AUX 1-6 feed XLR outputs with inserts when the GRP/AUX REVERSE
switches are pressed in the master section.
PAN
positions the channel signal within the stereo image or between L-R and the
groups when the routing switches are selected. The centre position is detented for
quick resetting.
MUTE
switches the signal off when pressed regardless of fader position. Muted
channels are indicated by red LEDs. The channel meter continues to indicate pre-
fader channel activity.
A 4 LED
CHANNEL METER
shows signal activity at all times. The green
SIG
LED indicates signals greater than -20dBu, yellow
‘0’
and
‘+6’
represents normal
operating level, and red
PEAK
warns of potential overload 5dB before clipping.
Set the channel signal so that the meter averages between
‘0’
and
‘+6’
. Back the
gain off if the red peak LED flashes.
Pressing
PFL
lets you listen to the channel pre-fader signal on headphones
without interrupting the main console outputs. The signal level is shown on the
L-
R
bargraph meters. In this way each sound can be correctly lined up and checked
at any time.
L-R, 1-2, 3-4
routing switches feed the channel signal to the L-R mix and groups
1-2, 3-4. Use the pan control to route to individual groups, i.e. left to route to L, 1,
3 and right to route to R, 2, 4. In this way subgroups may be set up in mono or
stereo to feed the main L-R mix.
A 100mm
FADER
pr10dB boost above the normal ‘0’ operating level. All
post-fade aux send levels are dependent on the level of the fader.
MF1 EQ
MF2 EQ
1-2
3-4
PEAK
L-R
PFL
0
SIG
+6
ODD
L
6
AUX
AUX
5
AUX
4
AUX
3
2
AUX
1
AUX
EVEN
R
MUTE
EQ IN
1
Ø
100Hz
HF
12kHz
-15
0
+15
500Hz
3kHz
15kHz
-15
0
+15
MF1
250Hz
35Hz
1kHz
-15
+15
0
MF2
-15
+15
0
60Hz
LF
PRE
PAN
C
5
5
OO
O
O
+6
O
O
+6
O
O
+6
O
O
+6
O
O
+6
O
O
+6
0
0
0
0
0
0
48V
PRE
10
20
30
10
0
20
- 10
30
60
40
PAD
GAIN
30
50
0
PAD
-30dB
