User guide
GL2800 User Guide                   23 
2-TRACK REPLAY and CONSOLE MONITOR  
2TRK REPLAY
 A stereo source such as a recording playback or 
walk-in CD can be routed directly to the main LR mix. Adjust its level 
from fully off to +10dB gain using the rotary control. You can check 
the source on the meters and in the headphones before bringing it 
into the mix by selecting the 2TRK monitor switch. 
Console Monitor
 Comprehensive engineer’s headphones and 
local monitoring is provided. Select the source from the monitor 
select switch bank. Pressing PFL or AFL elsewhere on the console 
automatically overrides the current monitor source with the signal from 
the channel or master selection.  The red PFL/AFL active indicator 
illuminates and the console meters display the active signal. 
The console monitor meters provide 12 LED indicators to accurately 
display the signal level of the selected monitor source. Reduce the 
gain or level if the red ‘+16’ peak indicator lights. For optimum 
performance the signals should be adjusted to read an average ‘0’ 
with loudest peaks reaching around ‘+6’. 
Use the MONITOR level control to adjust the level in the headphones 
and local speaker monitor. We recommend you use closed ear 
headphones in the range 30 to 600 ohms designed for live sound 
monitoring. 100 ohm headphones are a popular choice. 
Three headphones sockets are provided for convenience. One ¼” 
standard TRS is at the front
 under the armrest, a second at the top 
near the talkback mic. A small 3.5mm socket is also provided for 
plugging in headphones or earpieces fitted with a mini jack. It is useful 
to monitor an in-ear mix using the same type of earpiece as used by 
the performers. 
  WARNING: To avoid damage to your hearing do not 
operate any close-to-ear monitoring such as headphones for long 
periods at high volume. Continued exposure to high volume 
sound can cause frequency selective or wide range hearing loss. 
Stereo Monitoring  The GL2800 has been designed to offer 
maximum capability for working with multiple stereo mixes such as 
IEM and recording feeds. It is important to be able to hear exactly 
what you are sending from the console. Press AUX 9-10 to check the 
stereo aux mix. Press one switch to check a matrix in mono, two to 
check a related pair in stereo. For example, press MTX1 to listen to a 
mono fill mix, or press MTX1 and MTX2 together to listen to a stereo 
recording mix. 
Monitor Selection With all select switches in the up position, no 
source is monitored unless PFL or AFL is activated. Press a switch to 
select the required monitor source. Press two together to select stereo 
as described above. Switches nearer the faders take priority. For 
example, press L-R to listen to the main mix. Then press 2TRK to 
override the L-R source until it is released. 
POWER
+9
+6
+3
0
-3
-12
-16
-30
-20
-9
-6
+16
+10
2TRK
R
TO LR
2TRK REPLAY
OO
L
1-2
AUX
3-4
AUX
5-8
AUX
9-10
AUX
MTX3-4
MTX1-2
LATCH
L-R
MAXMIN
MAXMIN
ON
TALKBACK
OSC/NOISE
M
TALK
M
L-R
9-10
MONITOR
2TRK
AUX
MTX4
MTX3
MTX2
MTX1
100
PFL/AFL
MONITOR
STEREO
STEREO
STEREO
+10OO
9-10
AUX
1kHz OSC
PINK NOISE
PHONES










