System Block Diagram - ALLEN & HEATH GL2800 User Manual

System Block Diagram

GL2800
PHANTOM POWER
48V
GAIN
MIC
LINE/PAD POL
HPF
-20dB
2= +
+
-
BALANCED TIP= +
LINE
TIP= SEND
INSERT
0dBu
RING= RETURN
MIC/MONO INPUTS
PRE-FADE A
TIP= +
DIRECT OUT
POST-FADE
0dBu
B
RING= -
IMPEDANCE BALANCED
48V
PHANTOM POWER
GAIN
MIC
LINE/PAD POL
HPF
-20dB
2= +
+
-
TIP= +
MIC OUT
0dBu
RING= -
(break jack)
+
Off to +20dB boost
+
L/M
-
GAIN
STEREO LINE
+
R
-
MIC/STEREO INPUTS x2
GAIN
CH
L/M
INPUT ST1(3)
LR
R
+
L/M
-
GAIN
INPUT ST2(4)
+
R
- DUAL STEREO RETURN x2
TB/OSC
48V PHANTOM POWER
H J
OFF ON
GAIN
TALKBACK
MIC IN
2= +
+
-
BALANCED
36
METER
4 BAND EQUALISER
PFL
HF
MUTE
HM
EQ IN
LM
FADER
LF
PRE-INSERT, PRE-EQ
PRE PRE
JUMPER C D E
POST SW PR
3 4 5 6
AUX 1 2
METER
PFL
4 BAND EQUALISER
MUTE
HF
SUM +
EQ IN
HM
LM
FADER
LF
+
PRE-FADE
PRE PRE PRE
JUMPER C D E
POST SW PR
3 4 5 6
AUX 1 2
PFL
SUM +
MUTE
+
FADER
POST-FADE
G
PRE-FADE
F
AUX
TB/OSC OUT
IMPEDANCE BALANCED
ON
PINK NOISE LEVEL
DIM
1kHz OSC
PRESS TO TALK
M
PAN
L-R
1-2
3-4
5-6
7-8
M1
PRE
M2
9-10
M3
M4
7 8 PAN
M
BAL
L-R
1-2
3-4
+
5-6
POST-FADE 7-8
M1
M2
M3
9-10
M4
7 8 BAL
M
FROM L,R
SUM +
L-R
1-2 (3-4)
SUM
+
1 2 9-10
PFL/AFL DC
FROM GRP 1-8
MUTE MASTERS M1
M2
M3
M4
M
L-R
MTX1-2
WEDGE DIM
MTX3-4
AUX1-2
LATCH
AUX3-4
AUX5-8
AUX9-10
AFL
GRP/AUX REV
AUX
SL
+10dB boost
AUX MIX
GROUPS / AUX 1-8
FADER
+10dB boost
GRP MIX
SL
INSERT
-2dBu
GRP (TO MATRIX)
LR/AUX9-10 REV
SL AUX9-10
AUX9-10 MIX
SL
+10dB boost
AUX9 (TO MONITOR)
LR TO MONO
AUX10 (TO MONITOR)
+
L (TO MATRIX, MONITOR, MONO)
R (TO MATRIX, MONITOR, MONO)
LRM / AUX 9-10
L FADER
+10dB boost
INSERT
SL
R
-2dBu
LR MIX
INSERT M
SL
-2dBu
M MIX
SL
INSERT
-2dBu
M (TO MATRIX, MONITOR)
FROM P/AFL MIX WEDGE MODE
TB WEDGE DIM
MTX1-2 MTX3-4
ALL UP = P/AFL ONLY
FROM M FROM AUX9-10
FROM MATRIX
2-TRACK
SEND RETURN
L L/M
-2dBu
R R
TO WEDGE MODE
PFL/AFL MIX
SL
SL
FROM LRM
1
GRP1
EXT IN
GRP2
L
GRP3
R
GRP4
TO MONITOR
M
GRP5
MATRIX MIX MUTE
LEVEL
GRP6
GRP7
+6dB boost
GRP8
TB
GL2800 User Guide
SYS-LINK CONNECTION
SL
AUX OUT
TIP= +
IMPEDANCE BALANCED
+4dBu BAL OPTION -2dBu
METER
AFL
GROUP OUT
MUTE BAL
2 = +
+4dBu
M
PAN
L-R
AUX9 OUT
MUTE
TIP= +
IMPEDANCE BALANCED
+4dBu BAL OPTION -2dBu
AUX10 OUT
TIP= +
IMPEDANCE BALANCED
+4dBu BAL OPTION -2dBu
METER
LEFT OUT
MUTE BAL
2 = +
+4dBu
RIGHT OUT
MUTE BAL
2 = +
+4dBu
MONO OUT
MUTE BAL
2 = +
+4dBu
MONITOR
L R
MONITOR
MONITOR OUT
PFL/AFL
2TRK TO LR
IMPEDANCE BALANCED
PHONES OUT
TIP = LEFT
RING = RIGHT
2 3 4
0dBu
MATRIX OUT
TIP= +
IMPEDANCE BALANCED
+4dBu BAL OPTION -2dBu
MATRIX 1-4
L
R
3
2
1