ALLEN & HEATH ZED 436 User manual

USER GUIDE
Publication AP7028

Allen & Heath 3 ZED-4 BUS User Guide
Limited One Year Warranty
This product is warranted to be ree rom de ects in materials or
workmanship or period o one year rom the date o purchase by the
original owner.
To ensure a high level o per ormance and reliability or which this
equipment has been designed and manu actured, read this User Guide
be ore operating. In the event o a ailure, noti y and return the
de ective unit to ALLEN & HEATH Limited or its authorised agent as
soon as possible or repair under warranty subject to the ollowing
conditions
Conditions Of Warranty
The equipment has been installed and operated in accordance with the
instructions in this User Guide.
The equipment has not been subject to misuse either intended or
accidental, neglect, or alteration other than as described in the User
Guide or Service Manual, or approved by ALLEN & HEATH.
Any necessary adjustment, alteration or repair has been carried out by
ALLEN & HEATH or its authorised agent.
This warranty does not cover ader wear and tear.
The de ective unit is to be returned carriage prepaid to ALLEN &
HEATH or its authorised agent with proo o purchase.
Units returned should be packed to avoid transit damage.
In certain territories the terms may vary. Check with your ALLEN &
HEATH agent or any additional warranty which may apply.
This product complies with the European Electro magnetic Compatibility
directives 89/336/EEC & 92/31/EEC and the European Low Voltage
Directives 73/23/EEC & 93/68/EEC.
This product has been tested to EN55103 Parts 1 & 2 1996 or use in
Environments E1, E2, E3, and E4 to demonstrate compliance with the
protection requirements in the European EMC directive 89/336/EEC.
During some tests the speci ied per ormance igures o the product were
a ected. This is considered permissible and the product has been passed as
acceptable or its intended use. Allen & Heath has a strict policy o
ensuring all products are tested to the latest sa ety and EMC standards.
Customers requiring more in ormation about EMC and sa ety issues can
contact Allen & Heath.
ZED 4 BUS User Guide AP7028 Issue 1
Copyright © 2007 Allen & Heath Limited. All rights reserved
Allen & Heath Limited
Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK
http://www.allen-heath.com

Allen & Heath 4 ZED-4 BUS User Guide
PACKED ITEMS
Check that you have received the ollowing:
Mains Lead
Check that the correct
mains plug is itted.
ZED-420, ZED428 or ZED-436 MIXER
Type A-B USB Lead
To connect the ZED to
your computer.
SONAR LE
Music So tware Install disk.
MIC
INSERT
LINE
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
1
DIR OUT
48V
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
10
OO
30
20
-6-10 6 3 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
2
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
3
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
4
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 6 3 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
5
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
6
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 6 3 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
8
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 6 3 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
9
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
11
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
12
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
13
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 6 3 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
14
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
15
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 6 3 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
16
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
25-26
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
EQ IN
10
-30
-20
-5
0
5
-10
ST1
LEV
OO
10
-30
-20
-5
0
5
-10
OO
To LR
To CH
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO
OO
OO
OO
+6
AUX5
POST
+6
AUX6
POST
OO
OO
ODD
BAL
L
EVEN
R
=
MUTE
PFL
PK !
SIG
10
OO
30
20
ST1 IN
R
ST2
L/M
R
10
-30
-20
-5
0
5
-10
ST3
LEV
OO
To LR
To CH
PFL PFL PFL PF L PFL PFL PFL PFL PFL PFL PFL PFL P FL PFL
ST3
L
R
ST4
L/M
R
STEREO INPUTS
ST2
LEV
IN
IN IN
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
EQ IN
10
-30
-20
-5
0
5
-10
OO
ST4
LEV
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO
OO
OO
OO
+6
AUX5
POST
+6
AUX6
POST
OO
OO
ODD
BAL
L
EVEN
R
=
MUTE
PFL
PK !
SIG
0
10
OO
30
20
2 -28
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
1
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
OO
R
OO
L
OO
+6
+6
+6
2
3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6
+6
+6
1
OO
M
+6
MIC
INSERT
LINE
DIR OUT
48V
1
1
1
1
OO
R
OO
L
OO
+6
+6
+6
2
3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6
+6
+6
OO
M
+6
OO
LEVEL
+6
AFL
OO
LEVEL
+6
AFL
AUX 1 AUX 2 AUX 3 AUX 4 AUX 5 AUX 6
GRP 1 GRP 2 GRP 3 GRP 4
INSERT 1 INSERT 2 INSERT 3 INSERT 4
USB
SENDRETURN
AUX OUT
GROUP OUT
MTX 1 MTX 2
MATRIX
OUT
L
L
R
L
R
2TRK IN
2TRK OUT
INSERT L
INSERT R
INSERT M
L
R
MAIN OUT
M
PHONES
MIN MAX
TB MIC
MIN MAX
M
LR
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
PFL/AFL ACTIVE
Talk to LRM
Talk to AUX 1-4
POWER
MTX
1-2
AUX
1-2
AUX
5-6
LR
pre-fade
All up =LR post
OO +6
PLAYBACK
To LR
ALLEN&HEATH
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
L-R
M
PAN
L R
=
PAN
L R
=
PAN
L R
=
PAN
L R
=
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE MUTE MUTE
AUX1
AFL
AUX2
AFL
AUX3
AFL
AUX4
AFL
AUX5
AFL
AUX6
AFL
GRP L R M
L-R
M
L-R
M
L-R
M
00
1 2 3 4
USB
2TRK
PLAYBACK SOURC E
LEVEL
PLAYBACK
LEVEL
TB
LEVEL
PHONES
PFL
USB SEND SOURCE
ST3 INPUT SOURCE
USB
ST3 IN
-6-10 6 3 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
18
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
18
18
18
18
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
19
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
19
19
19
19
-6-10 6 3 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
20
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
20
20
20
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
21
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
21
21
21
21
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
22
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
22
22
22
22
-6-10 6 3 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
23
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
23
23
23
23
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
24
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
24
24
24
24
IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN I N IN IN IN IN IN IN IN IN
L R M
MATRIX 2 MATRIX
1 GRP 2 GRP 3 GRP 4
M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
M
L-R
1-2
3-4
M
L-R
1-2
3-4
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
PFL
SONAR LE
cakewalk
INSTALL

Allen & Heath 5 ZED-4 BUS User Guide
SAFETY INSTRUCTIONS
WARNINGS - Read the following before proceeding :
CAUTION
ATTENTION: RISQUE E CHOC ELECTRIQUE – NE PAS OUVRIR
Read instructions: Retain these safety and operating instructions for future reference. Adhere to all arnings printed here
and on the console. Follo the operating instructions printed in this User Guide.
Do not remove cover: Operate the console ith its covers correctly fitted.
Power sources: Connect the console to a mains po er unit only of the type described in this User Guide and marked
on the rear panel. Use the po er cord ith sealed mains plug appropriate for your local mains sup-
ply as provided ith the console. If the provided plug does not fit into your outlet consult your service
agent for assistance.
Power cord routing: Route the po er cord so that it is not likely to be alked on, stretched or pinched by items placed
upon or against it.
Grounding: Do not defeat the grounding and polarisation means of the po er cord plug. Do not remove or tam-
per ith the ground connection in the po er cord.
Water and moisture: To reduce the risk of fire or electric shock do not expose the console to rain or moisture or use it in
damp or et conditions. Do not place containers of liquids on it hich might spill into any openings.
Ventilation: Do not obstruct the ventilation slots or position the console here the air flo required for ventilation
is impeded. If the console is to be operated in a rack unit or flightcase ensure that it is constructed to
allo adequate ventilation.
Heat and vibration: Do not locate the console in a place subject to excessive heat or direct sunlight as this could be a fire
hazard. Locate the console a ay from any equipment hich produces heat or causes excessive vi-
bration.
Servicing: S itch off the equipment and unplug the po er cord immediately if it is exposed to moisture, spilled
liquid, objects fallen into the openings, the po er cord or plug become damaged, during lightening
storms, or if smoke, odour or noise is noticed. Refer servicing to qualified technical personnel only.
Installation: Install the console in accordance ith the instructions printed in this User Guide. Do not connect the
output of po er amplifiers directly to the console. Use audio connectors and plugs only for their
intended purpose.
!
WARNING: T is equipment must be eart ed.

Allen & Heath 6 ZED-4 BUS User Guide
SAFETY INSTRUCTIONS
TERMINAL WIRE COLOUR
European USA/Canada
L LIVE BROWN BLACK
N NEUTRAL BLUE WHITE
E EARTH GND GREEN & YELLOW GREEN
Important Mains p ug wiring instructions
The console is supplied with a moulded mains plug itted to the AC
mains power lead. Follow the instructions below i the mains plug has to
be replaced. The wires in the mains lead are coloured in accordance
with the ollowing code:
!
The wire which is coloured Green and Yellow must be connected to the
terminal in the plug which is marked with the letter E or with the Earth sym-
bol. This appliance must be earthed.
The wire which is coloured Blue must be connected to the terminal in the
plug which is marked with the letter N.
The wire which is coloured Brown must be connected to the terminal in the
plug which is marked with the letter L.
Ensure that these colour codes are ollowed care ully in the event o the
plug being changed.

Genera Precautions:
Damage : To prevent damage to the controls and cosmetics avoid placing heavy objects
on the control sur ace, scratching the sur ace with sharp objects, or rough
handling and vibration.
Environment : Protect rom excessive dirt, dust, heat and vibration when operating and stor-
ing. Avoid tobacco ash, smoke, drinks spillage, and exposure to rain and mois-
ture. I the console becomes wet, switch o and remove mains power imme-
diately. Allow to dry out thoroughly be ore using again.
C eaning : Avoid the use o chemicals, abrasives or solvents. The control panel is best
cleaned with a so t brush and dry lint- ree cloth. The aders, switches and po-
tentiometers are lubricated or li e. The use o electrical lubricants on these
parts is not recommended. The ader and potentiometer knobs may be re-
moved or cleaning with a warm soapy solution. Rinse and allow to dry ully
be ore re itting them.
Transporting : The console may be transported as a ree-standing unit or mounted in a rack
or lightcase. Protect the controls rom damage during transit. Use adequate
packing i you need to ship the unit.
Hearing : To avoid damage to your hearing do not operate any sound system at exces-
sively high volume. This applies particularly to close-to-ear monitoring such as
headphones and in-ear systems. Continued exposure to high volume sound
can cause requency selective or wide range hearing loss.

Allen & Heath 7 ZED-4 BUS User Guide
CONTENTS
Thank you or purchasing your Allen & Heath ZED mixer. To ensure that
you get the maximum bene it rom the unit please spare a ew minutes
amiliarizing yoursel with the controls and setup procedures outlined in
this user guide. For urther in ormation please re er to the additional
in ormation available on our web site, or contact our technical support
team.
http://www.allen-heath.com
http://www.allen-heath.com/zed
http://www.myspace.com/thezedspace
Warranty ............................................. 3
Packed Items....................................... 4
Sa ety Instructions ............................. 5
Contents.............................................. 7
Panel Drawings................................... 8
Introduction to ZED......................... 11
Speci ications ...................................... 12
Dimensions ......................................... 13
Block Diagram.................................... 14
Mono Input Channel ......................... 15
Stereo Input Channel........................ 19
Matrix Outputs & Aux Masters....... 22
Group Masters ................................... 23
L R & M Masters & Headphones .... 24
Main Meters and Talkback................ 25
USB Selection and Playback............. 26
USB Connection ................................ 27
SONAR LE so tware introduction . 28
SONAR LE installation ..................... 29
Con iguring SONAR LE with ZED. 29
Using USB or e ects........................ 32
Wiring Notes ..................................... 33
Product Support ................................ 34

Allen & Heath 8 ZED-4 BUS User Guide
PANEL DRAWINGS—ZED420
MIC
INSERT
LINE
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
1
DIR OUT
48V
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
2
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
3
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
4
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
5
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
6
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
8
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
9
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
11
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
12
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
13
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
14
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
15
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
16
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
LEVEN R
=
MUTE
PK !
SIG
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 -18
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
EQ IN
10
-30
-20
-5
0
5
-10
ST1
LEV
OO
10
-30
-20
-5
0
5
-10
OO
To LR
To CH
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO
OO
OO
OO
+6
AUX5
POST
+6
AUX6
POST
OO
OO
ODD
BAL
LEVEN R
=
MUTE
PFL
PK !
SIG
10
OO
30
20
ST1 IN
R
ST2
L/M
R
10
-30
-20
-5
0
5
-10
ST3
LEV
OO
To LR
To CH
PFL PFL PFL PFL PFL PFL P FL PFL PFL PFL PFL PFL PFL PFL
ST3
L
R
ST4
L/M
R
STEREO INPUTS
ST2
LEV
IN
IN IN
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
EQ IN
10
-30
-20
-5
0
5
-10
OO
ST4
LEV
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO
OO
OO
OO
+6
AUX5
POST
+6
AUX6
POST
OO
OO
ODD
BAL
LEVEN R
=
MUTE
PFL
PK !
SIG
0
10
OO
30
20
19-20
OO
R
OO
L
OO
+6
+6
+6
2
3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6
+6
+6
1
OO
M
+6
OO
R
OO
L
OO
+6
+6
+6
2
3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6
+6
+6
OO
M
+6
OO
LEVEL
+6
AFL
OO
LEVEL
+6
AFL
AUX 1 AUX 2 AUX 3 AUX 4 AUX 5 AUX 6
GRP 1 GRP 2 GRP 3 GRP 4
INSERT 1 INSERT 2 INSERT 3 INSERT 4
USB
SENDRETURN
AUX OUT
GROUP OUT
MTX 1 MTX 2
MATRIX
OUT
L
L
R
L
R
2TRK IN
2TRK OUT
INSERT L
INSERT R
INSERT M
L
R
MAIN OUT
M
PHONES
MIN MAX
TB MIC
MIN MAX
M
LR
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
PFL/AFL ACTIVE
Talk to LRM
Talk to AUX 1-4
POWER
MTX
1-2
AUX
1-2
AUX
5-6
LR
pre-fade
All up =LR post
OO +6
PLAYBACK
To LR
ALLEN&HEATH
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
L-R
M
PAN
L R
=
PAN
L R
=
PAN
L R
=
PAN
L R
=
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE MUTE MUTE
AUX1
AFL
AUX2
AFL
AUX3
AFL
AUX4
AFL
AUX5
AFL
AUX6
AFL
GRP L R M
L-R
M
L-R
M
L-R
M
00
1 2 3 4
USB
2TRK
PLAYBA CK SOURCE
LEVEL
PLAYBACK
LEVEL
TB
LEVEL
PHONES
PFL
USB SEND SOUR CE
ST3 INPUT S OURCE
USB
ST3 IN
IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN
L R M
MATRIX 2 MATRIX
1 GRP 2 GRP 3 GRP 4
M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
M
L-R
1-2
3-4
M
L-R
1-2
3-4
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
AC MAINS IN ~
100 - 240V~ 4 -63Hz 60W MAX
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
REPLACE FUSE WITH SAME TYPE AND RATING.CAUTION: FOR CON TINUED PROTECTION AGAINST RISK OF FIRE
ATTENTION: REMPLACER PAR UN FUSIBLE STRICTEMENT IDENTIQUE EN VALEURS.
DO NOT OPEN
CAUTION
RISK OF ELECTRIC SHOCK
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
ALLEN&HEATH
OFF
0I
ON
WARNING: THIS APPARATUS MUST B E EARTH ED
Serial No.
ENGINEERED IN ENGLAND BY ALLEN & HEATH LIMITED.
(2) this devic e must accept any interference received,
This device c omplies with Part 15 of the FCC Rul es.
(1) this devic e may not cause harmful interference, and
Operation is sub ject to the following two conditions :
including interfe rence that may cause undesired operation.
T1.6A L 250V 20mm
FUSE
PFL

Allen & Heath 9 ZED-4 BUS User Guide
PANEL DRAWINGS—ZED428
MIC INSERT LINE
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
1
DIR OUT
48V
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
10
OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
2
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
3
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
4
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG
10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
5
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
6
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10
OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
8
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
9
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10
OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
11
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
12
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10
OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
13
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
14
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
15
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10
OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
16
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
25-26
-15 +15
HF 12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF 12k
HF
12k
HF
12k
HF 12k
HF
12k
HF
12k
HF
12k
HF
12k
EQ IN
10
-30 -20
-5
0
5
-10
ST1 LEV
OO
10
-30 -20
-5
0
5
-10
OO
To LR To CH
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO OO OO OO
+6
AUX5
POST
+6
AUX6
POST
OO OO
ODD
BAL
L
EVEN
R
=
MUTE
PFL
PK ! SIG
10 OO
30 20
ST1
IN
R
ST2
L/M
R
10
-30
-20
-5
0
5
-10
ST3 LEV
OO
To LR To CH
PFL PFL PFL PFL PFL PFL PFL PFL PF L PFL PFL PFL PFL PFL
ST3
L R
ST4
L/M
R
STEREO INPUTS
ST2 LEV
IN
IN IN
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
EQ IN
10
-30
-20
-5
0
5
-10
OO
ST4 LEV
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO OO OO OO
+6
AUX5
POST
+6
AUX6
POST
OO OO
ODD
BAL
L
EVEN
R
=
MUTE
PFL
PK ! SIG
0
10 OO
30 20
2 -28
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
1
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
OO
R
OO
L
OO
+6 +6 +6
2 3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6 +6 +6
1
OO
M
+6
MIC INSERT LINE DIR OUT
48V
1 1 1
1
OO
R
OO
L
OO
+6 +6 +6
2 3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6 +6 +6
OO
M
+6
OO
LEVEL
+6
AFL
OO
LEVEL
+6
AFL
AUX
1
AUX
2
AUX
3
AUX
4
AUX
5
AUX
6
GRP
1
GRP
2
GRP
3
GRP
4
INSERT
1
INSERT
2
INSERT
3
INSERT
4
USB
SENDRETURN
AUX OUT
GROUP OUT
MTX
1
MTX
2
MATRIX OUT
L
L
R
L
R
2TRK IN
2TRK OUT
INSERT
L
INSERT
R
INSERT
M
L R
MAIN OUT
M
PHONES
MIN MAX
TB MIC
MIN MAX
M LR
L
+16
-6 -9
-20 -30 -16 -12
-3
0
+3 +6 +9
R +16
-6 -9
-20 -30 -16 -12
-3
0
+3 +6 +9
PFL/AFL ACTIVE
Talk to LRM Talk to AUX 1-4
POWER
MTX 1-2 AUX 1-2 AUX 5-6
LR pre-fade
All up =LR post
OO
+6
PLAYBACK To LR
ALLEN&HEATH
OO
30
5
10 20
5 0
10
OO 30
5
10 20
5
0
10
OO
30
5
10 20
5
0
10
OO
30
5
10 20
5
0
10
OO 30
5
10 20
5
0
10
OO
30
5
10 20
5
0
10
OO
30
5
10 20
5
0
10
L-R M
PAN
L R
=
PAN
L R
=
PAN
L R
=
PAN
L R
=
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE MUTE MUTE
AUX1
AFL
AUX2
AFL
AUX3
AFL
AUX4
AFL
AUX5
AFL
AUX6
AFL
GRP
L R M
L-R M
L-R M
L-R M
00
1234
USB 2TRK
PLAYBACK SOURCE
LEVEL
PLAYBACK
LEVEL TB
LEVEL PHONES
PFL
USB SEND SOURCE ST3 INPUT SOURCE
USB
ST3 IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
18
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10
OO
30 20
MIC INSERT LINE DIR OUT
48V
18 18 18
18
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
19
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
19 19 19
19
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
20
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
20 20 20
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
21
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10
OO
30 20
MIC INSERT LINE DIR OUT
48V
21 21 21
21
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
22
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
22 22 22
22
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
23
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
23 23 23
23
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
24
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10
OO
30 20
MIC INSERT LINE DIR OUT
48V
24 24 24
24
IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN I N IN IN IN IN IN IN IN IN
L R M
MATRIX
2
MATRIX
1
GRP
2
GRP
3
GRP
4
M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
M
L-R 1-2 3-4
M
L-R 1-2 3-4
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
AC MAINS IN ~
100 - 240V~ 4 -63Hz 60W MAX
REFER SERVICI NG TO QUALIFIED SERVICE PERSONNEL.
REPLACE FUSE WITH SAME TYPE AND RATING.CAUTION: FOR CO NTINUED PROTECTION AGAINST RISK OF FIRE
ATTENTION: RE MPLACER PAR UN FUSIBL E STRICTEMENT IDENTIQUE EN VALE URS.
DO NOT OPEN
CAUTION
RISK OF ELEC TRIC SHOCK
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR .
WARNING: TO RE DUCE THE RISK OF ELECTRIC SHOCK DO NOT EXPOSE T HIS APPARATUS TO RAIN OR MOISTURE.
ALLEN&HEATH
OFF
0 I
ON
WARNING: THIS APPARATUS MUST BE EARTH ED
Serial No.
ENGINEERED IN ENGLAND BY ALLEN & HEATH LIMITED.
(2) this device must accept any interference received, This device c omplies with Part 15 of the FCC Rules. (1) this device may not cause harmful interference, and Operation is su bject to the following two conditions: including inte rference that m ay cause undesired operation.
T1.6A L 250V 20mm
FUSE
PFL

Allen & Heath 10 ZED-4 BUS User Guide
PANEL DRAWINGS—ZED436
AC MAINS IN ~
100 - 240V~ 4 -63Hz 60W MAX
REFER SERVICI NG TO QUALIFIED SERVICE PERSONNEL.
REPLACE FUS E WITH SAME TYPE AND RATIN G.CAUTION: FOR CONTINUED PROTECTI ON AGAINST RISK OF FIRE
ATTENTION: REMPLA CER PAR UN FUSIB LE STRICTEMENT ID ENTIQUE EN VALEURS.
DO NOT OPEN
CAUTION
RISK OF ELECTRIC SHOCK
AVIS: RI SQUE DE CHOC ELECTRI QUE - NE PAS OUVRIR.
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT EXPOS E THIS APPARATUS TO RAIN OR MOISTURE.
ALLEN&HEATH
OFF
0 I
ON
WARNING: THIS APPARATUS MUST BE EARTHED
Serial No.
ENGINEERED I N ENGLAND BY ALLEN & HEATH LIMI TED.
(2) this device must a ccept any interference received, This device compli es with Part 15 of the FCC Rules. (1) this device may no t cause harmful interference, and Operation is s ubject to the following two condit ions: including interference that may cause undesired operation.
T1.6A L 250V 20mm
FUSE
MIC INSERT LINE
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
1
DIR OUT
48V
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
2
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
3
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO 30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
4
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO 30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
5
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO 30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
6
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
8
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
9
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10
OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10
OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
11
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10
OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
12
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10
OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
13
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
14
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
15
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
16
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK ! SIG 10 OO
30 20
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OU T
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OUT
48V
MIC INSERT LINE DIR OU T
48V
MIC INSERT LINE DIR OU T
48V
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
33-34
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
HF 12k
HF 12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
EQ IN
10
-30
-20
-5
0
5
-10
ST1 LEV
OO
10
-30
-20
-5
0
5
-10
OO
To LR To CH
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO OO OO OO
+6
AUX5
POST
+6
AUX6
POST
OO OO
ODD
BAL
L
EVEN
R
=
MUTE
PFL
PK ! SIG
10 OO
30 20
ST1
IN
R
ST2
L/M
R
10
-30
-20
-5
0
5
-10
ST3 LEV
OO
To LR To CH
PFL PFL PFL PFL PFL PFL P FL PFL PFL PFL P FL PFL PFL PFL
ST3
L R
ST4
L/M
R
STERE O INPUTS
ST2 LEV
IN
IN IN
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
EQ IN
10
-30
-20
-5
0
5
-10
OO
ST4 LEV
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO OO OO OO
+6
AUX5
POST
+6
AUX6
POST
OO OO
ODD
BAL
L
EVEN
R
=
MUTE
PFL
PK ! SIG
0
10 OO
30 20
35-36
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
1
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
OO
R
OO
L
OO
+6 +6 +6
2 3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6 +6 +6
1
OO
M
+6
MIC INSERT LINE DIR OUT
48V
1 1 1
1
OO
R
OO
L
OO
+6 +6 +6
2 3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6 +6 +6
OO
M
+6
OO
LEVEL
+6
AFL
OO
LEVEL
+6
AFL
AUX
1
AUX
2
AUX
3
AUX
4
AUX
5
AUX
6
GRP
1
GRP
2
GRP
3
GRP
4
INSERT
1
INSERT
2
INSERT
3
INSERT
4
USB
SENDRETURN
AUX OUT
GROUP OUT
MTX
1
MTX
2
MATRIX OUT
L
L R L R
2TRK IN
2TRK OUT
INSERT
L
INSERT
R
INSERT
M
L R
MAIN OU T
M
PHONES
MIN MAX
TB MIC
MIN MAX
M LR
L +16
-6 -9
-20 -30 -16 -12
-3
0
+3 +6 +9
R +16
-6 -9
-20 -30 -16 -12
-3
0
+3 +6 +9
PFL/AFL ACTIVE
Talk to LRM Talk to AUX 1-4
POWER
MTX 1-2 AUX 1-2 AUX 5-6
LR pre-fade
All up = LR post
OO
+6
PLAYBACK To LR
ALLEN&HEATH
OO
30
5
10 20
5
0
10
OO
30
5
10 20
5
0
10
OO
30
5
10 20
5
0
10
OO
30
5
10 20
5 0
10
OO
30
5
10 20
5 0
10
OO 30
5
10 20
5
0
10
OO
30
5
10 20
5
0
10
L-R M
PAN
L R
=
PAN
L R
=
PAN
L R
=
PAN
L R
=
PK! +6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE MUTE MUTE
AFL AFL AFL AFL AFL AFL
GRP
L R M
L-R M
L-R M
L-R M
00
1234
USB 2TRK
PLAYBACK SOURC E
LEVEL PLAYBACK
LEVEL TB
LEVEL PHONES
PFL
USB SEND SOURCE ST3 INPUT SOURCE
USB
ST3 IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
18
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
18 18 18
18
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
19
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO 30 20
MIC INSERT LINE DIR OUT
48V
19 19 19
19
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
20
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO 30 20
MIC INSERT LINE DIR OUT
48V
20 20 20
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
21
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
21 21 21
21
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
22
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
22 22 22
22
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
23
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
23 23 23
23
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
24
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OU T
48V
24 24 24
24
IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN
L R M
MATRIX
2
MATRIX
1
GRP
2
GRP
3
GRP
4
M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
0M
L-R 1-2 3-4
M
L-R 1-2 3-4
M
L-R 1-2 3-4
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
25
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10
OO
30 20
MIC INSERT LINE DIR OUT
48V
25 25 25
25
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
26
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10
OO
30 20
MIC INSERT LINE DIR OUT
48V
26 26 26
26
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
2
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10
OO
30 20
MIC INSERT LINE DIR OUT
48V
2 2 2
2
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
28
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10
OO
30 20
MIC INSERT LINE DIR OUT
48V
28 28 28
28
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
29
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
29 29 29
29
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
30
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OUT
48V
30 30 30
30
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
31
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OU T
48V
31 31 31
31
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
32
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE POST
OO OO OO OO OO OO
HPF
100Hz
-15
LF
-15
+15 +15
180
45
LM
35Hz
0 -15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R 1-2 3-4
0
10 OO
30 20
MIC INSERT LINE DIR OU T
48V
32 32 32
32
IN
AUX1 AUX2 AUX3 AUX4 AUX5 A UX6
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
PFL

Allen & Heath 11 ZED-4 BUS User Guide
INTRODUCTION TO THE ZED-4 BUS MIXERS
A Technica Overview:
The Allen & Heath ZED-4 mixer has been care ully and lovingly designed in the beauti ul county o Cornwall in the UK and is
manu actured alongside a wide range o pro essional audio mixing consoles. Many o the components used in ZED are exactly
the same as in the larger Allen & Heath products and the construction methods are also very similar — utilising individual ver-
tically mounted channel circuit boards with each rotary control ixed with a metal nut to the ront panel. This provides a very
robust product that will resist damage and give years o reliable use. It also makes servicing much easier should it be required,
with the ability to remove one particular channel rom the mixer at a time, or easily change a ader.
The audio circuitry is based on years o continual development and re inement, the per ormance o all the elements within the
mixer scrutinised and per ected to ensure the very best sound quality possible.
Mic/Line Pre-amps:
Based on the pre-amps rom the PA series, the ZED series pre-amps use a two stage design, with care ully controlled amounts
o gain in each stage. When ampli ying the signal rom the XLR input, the gain range is huge — 69dB o range to be exact —
and is very evenly distributed around the gain control, meaning better control o signal level. Most o the gain comes rom the
irst stage, so unwanted noise is kept to a minimum. There is no “pad” switch, or pad circuit — line level signals are simply
plugged into the second stage o the pre-amp by using the line input jack socket. This has the great advantage o lower noise
when using the line input. (It is common to attenuate line level signals, the ampli y them back up again which can give more
noise or hiss).
EQ:
The ZED-4 series mixers are equipped with a 4-band equaliser circuit on each input, based closely on the acclaimed GL2400
EQ. The requency and response o each has been care ully chosen to give the maximum per ormance when using the EQ on a
variety o sources.
AUX system:
Six auxiliary sends are provided, two pre- ade, two post ade, and two switched pre or post ade. The Aux master level con-
trols are grouped nicely together in the master section and have AFL (a ter ade listen) switches or monitoring.
Groups:
The our sub-groups can be used or easy control o groups o inputs, or or applying signal processing such as compression to
groups o signals using the Group Insert connector. The groups have individual outputs and can also be sub-mixed to the main
L-R and Mono mixes.
Main Mix:
In addition to the main L-R stereo bus, there is a Mono bus which can be routed to individually, ideal or eeding low requency
speaker systems, or creating a mono PA mix.
Mono and Stereo Channe s:
The ZED-420, 428 and 436 models have a ull complement o 16, 24 and 32 mono inputs respectively, plus two stereo chan-
nels, maximising the number o inputs you get. The Stereo channels are dual, so you can get 4 stereo inputs to mix be ore you
need to use any mono channels.
USB:
Getting audio to and rom a computer easily is now a common requirement or live sound and music production. The way we
have implemented this on ZED is super- lexible and super-easy! No longer do you need to iddle around the back o your PC
to get to the soundcard inputs, only to ind that the levels are all wrong and noisy. Just plug in a USB lead to your ZED, select
the USB routing on the mixer and the device on your computer and that’s it! Quality audio to and rom your PC or MAC.
As you can te , we’re very proud of this product we hope you ike it too!

Allen & Heath 12 ZED-4 BUS User Guide
SPECIFICATIONS
Operating Leve s
Inputs
Mono channel (XLR) Input +6 to –63dBu or nominal (+17dBu in max)
Mono channel Line Input (Jack socket) +10 to –26dBu (+30dBu maximum)
Insert point (TRS Jack socket) 0dBu nominal +21dBu maximum
Stereo Input (Jack sockets) 0dBu nominal (control = O to +10dB)
Stereo input (phono sockets) 0dBu nominal (control = O to +10dB)
2 Track Input (phono sockets) 0dBu nominal +21dBu maximum
Outputs
L, R & Mono Outputs (XLR) +4dBu nominal. +27dBu maximum.
L, R & M Insert (TRS Jack socket) -2dBu nominal +21dBu maximum
Group Outputs (Jack sockets) +4dBu nominal. +27dBu maximum.
Group Insert (TRS Jack socket) -2dBu nominal +21dBu maximum
Aux Outputs (Jack sockets) -2dBu nominal +21dBu maximum (Bal Option +4)
Matrix Outputs (TRS Jack socket) -2dBu nominal. +21dBu maximum. (Bal Option +4)
2 Track Output (phono sockets) 0dBu nominal. +21dBu maximum.
Direct Out (TRS Jack socket) 0dBu nominal. +21dBu maximum.
Frequency Response
Mic in to Mix L/R Out, 30dB gain +0.5/-1dB 20Hz to 20kHz.
Line in to Mix L/R out 0dB gain +0.5/-1dB 10Hz to 30kHz
Stereo in to Mix L/R out +0.5/-1dB 10Hz to 30kHz
THD+n
Mic in to Mix L/R Out, 0dB gain 1kHz +10dBu out 0.004%
Mic in to Mix L/R Out, 30dB gain 1kHz 0.014%
Line in to Mix L/R out 0dB gain 0dBu 1kHz 0.005%
Stereo in to Mix L/R out 0dB gain +10dBu 1kHz 0.003%
Headroom
Analogue Headroom rom nominal (0Vu) 21dB
USB in & out headroom rom nominal (0Vu) 14dB
USB Audio CODEC (Coder/Decoder)
USB Audio In/Out USB 1.1 compliant 16bit.
Sample Rate 32, 44.1, or 48kHz
Noise
Mix Noise, LR out, 16 channels routed, Re +4dBu, 22-22kHz -90dB (-86dBu)
Mix Noise, LR out, 24 channels routed, Re +4dBu, 22-22kHz -89dB (-85dBu)
Mix Noise, LR out, 32 channels routed, Re +4dBu, 22-22kHz -88dB (-84dBu)
Mic Pre EIN @ max gain 150R input Z 22-22kHz -127dBu

Allen & Heath 13 ZED-4 BUS User Guide
560mm
(22.1 inches)
Dimensions
Weight kg ( b)
Model Packed
ZED-420 17.5 (38.5 lb)
Unpacked
14 (31 lb)
ZED-428 18 (40 lb) 22.5 (56.25 lb)
ZED-436 22 (48.5 lb) 26.5 (58.3 lb)
MIC
INSERT
LINE
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
1
DIR OUT
48V
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
2
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
3
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
4
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
5
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
6
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
8
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
9
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
11
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
12
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
13
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
14
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
15
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
16
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
EQ IN
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
SIG
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
MIC
INSERT
LINE
DIR OUT
48V
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16
33-34
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
HF
12k
EQ IN
10
-30
-20
-5
0
5
-10
ST1
LEV
OO
10
-30
-20
-5
0
5
-10
OO
To LR
To CH
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO
OO
OO
OO
+6
AUX5
POST
+6
AUX6
POST
OO
OO
ODD
BAL
L
EVEN
R
=
MUTE
PFL
PK !
SIG
10
OO
30
20
ST1 IN
R
ST2
L/M
R
10
-30
-20
-5
0
5
-10
ST3
LEV
OO
To LR
To CH
PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL
ST3
L
R
ST4
L/M
R
STEREO INPUTS
ST2
LEV
IN
IN IN
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
EQ IN
10
-30
-20
-5
0
5
-10
OO
ST4
LEV
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
PRE
POST
OO
OO
OO
OO
+6
AUX5
POST
+6
AUX6
POST
OO
OO
ODD
BAL
L
EVEN
R
=
MUTE
PFL
PK !
SIG
0
10
OO
30
20
35-36
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
1
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
OO
R
OO
L
OO
+6
+6
+6
2
3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6
+6
+6
1
OO
M
+6
MIC
INSERT
LINE
DIR OUT
48V
1
1
1
1
OO
R
OO
L
OO
+6
+6
+6
2
3
GRP
4
OO
GRP
OO
1
GRP
OO
GRP
+6
+6
+6
OO
M
+6
OO
LEVEL
+6
AFL
OO
LEVEL
+6
AFL
AUX 1 AUX 2 AUX 3 AUX 4 AUX 5 AUX 6
GRP 1 GRP 2 GRP 3 GRP 4
INSERT 1 INSERT 2 INSERT 3 INSERT 4
USB
SENDRETURN
AUX OUT
GROUP OUT
MTX 1 MTX 2
MATRIX
OUT
L
L
R
L
R
2TRK IN
2TRK OUT
INSERT L
INSERT R
INSERT M
L
R
MAIN OUT
M
PHONES
MIN MAX
TB MIC
MIN MAX
M
LR
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
PFL/AFL ACTIVE
Talk to LRM
Talk to AUX 1-4
POWER
MTX
1-2
AUX
1-2
AUX
5-6
LR
pre-fade
All up =LR post
OO +6
PLAYBACK
To LR
ALLEN&HEATH
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
L-R
M
PAN
L R
=
PAN
L R
=
PAN
L R
=
PAN
L R
=
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
PK!
+6
0
SIG
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE
AFL
MUTE MUTE MUTE
AFL AFL AFL AFL AFL AFL
GRP L R M
L-R
M
L-R
M
L-R
M
00
1 2 3 4
USB
2TRK
PLAYBACK SOURCE
LEVEL
PLAYBACK
LEVEL
TB
LEVEL
PHONES
PFL
USB SEND SOURCE
ST3 INPUT SOURCE
USB
ST3 IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
18
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
18
18
18
18
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
19
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
19
19
19
19
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
20
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
20
20
20
20
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
21
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
21
21
21
21
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
22
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
22
22
22
22
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
23
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
23
23
23
23
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
24
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
24
24
24
24
IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN
L R M
MATRIX 2 MATRIX
1 GRP 2 GRP 3 GRP 4
M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
0M
L-R
1-2
3-4
M
L-R
1-2
3-4
M
L-R
1-2
3-4
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
25
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
25
25
25
25
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
26
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
26
26
26
26
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
2
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
2
2
2
2
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
28
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
28
28
28
28
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
29
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
29
29
29
29
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
30
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
30
30
30
30
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
31
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
31
31
31
31
IN
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
32
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
HPF
100Hz
-15
LF
-15
+15
+15
180
45
LM
35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
0
10
OO
30
20
MIC
INSERT
LINE
DIR OUT
48V
32
32
32
32
IN
AUX1 AUX2 AUX3 AUX4 AUX5 AUX6
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
OO +10
0
PFL
ZED-420 = 715mm (28.2 inches)
ZED-428 = 930mm (36.6 inches)
ZED-436 = 1135mm (44.7 inches)
120
129
50
R23

Allen & Heath 14 ZED-4 BUS User Guide
BLOCK DIAGRAM
+
-
GAIN
HM HF
4 BAND EQUALISER
MONO CHANNEL
ZED-4 BLOCK DIAGRAM
100Hz
MIC IN
FADER
PFL
PEAK
STEREO CHANNEL
AUX1 AUX 2
LF
ST1
R L
R
L
GAIN
STEREO INPUT 1
+
+
-
LINE IN
+48V
INSERT
MUTE
PAN
GAIN
LR
SUM
HF
4 BAND EQUALISER
LF
L INSERT R INSERT
LEFT RIGHT
MAIN LR
HPF
PFL/AFL
RIGHT
LEFT
CHAN
MAIN OUT
PHANTOM POWER SWITCH
+4dBu NOMINAL
LM
EQ
IN
MONO
L-R 1-2 3-4
M
AUX3 AUX 4 AUX5 AUX 6
PRE
DIRECT OUT
SIGNAL
HFLF
EQ
IN FADER
PFL
AUX1 AUX 2
MUTE
BAL
L-R 1-2 3-4
M
AUX3 AUX 4 AUX5 AUX 6
PRE
+
+ +
GROUP 2
GROUP 1
GROUP 3
AUX 1
GROUP 4
AUX 2
AUX 3
AUX 4
AUX 5
AUX 6
+ +
PEAK SIGNAL
ST3
R L GAIN
STEREO INPUT 3
LR
CHAN
MIX BUSES
BALANCED
M INSERT
MONO
AUX1
MASTER LEVEL
AUX1
+4dBu NOMINAL
BALANCED OPTION
-2dBu NOMINAL
IMPEDANCE BALANCED
FACTORY FIT
SERVICE CENTRE OPTION FIT
AFL
GROUP1 INSERT
GROUP1
AFL
+4dBu NOMINAL
BALANCED
GROUP1 FADER
MTX 1-2
AUX 1-2 AUX 5-6
USB I/O
USB
RETURN
USB DEVICE
PRIORITY SWITCHING
L-R PRE
GRP1
MUTE
PAN
L-R
M
METER
GRP2 GRP3 GRP4 L R M MATRIX1
MASTER LEVEL
MATRIX1
+4dBu NOMINAL
BALANCED OPTION
-2dBu NOMINAL
IMPEDANCE BALANCED
FACTORY FIT
SERVICE CENTRE OPTION FIT
MINI BUS
AFL
L-R POST
FROM MATRIX 2
FROM AUX 2 FROM AUX 6 FROM AUX 5
LR / M METERS
PHONES
LEVEL
HEADPHONES
PFL/AFL
PFL ACTIVE
GROUPS 2 TO 4 THE SAME
AUXES 2 TO 6 THE SAME
TALKBACK
ON
48V PHANTOM POWER
OFF
MIC IN
TALKBACK
BALANCED
2= +
GAIN
ST3 INPUT SOURCE
USB RETURN
PLAYBACK
LEVEL
2 TRACK IN
R L
PLAYBACK
SOURCE
L-R
PFL
+
AUX 1-4
L-R-M
TIP SEND TIP SEND TIP SEND TIP SEND
+10dB
+10dB
+10dB
+10dB
R L
FACTORY SOLDER LINK
FACTORY SOLDER LINK
USB
OUTPUT
USB
OUTPUT
RECORD OUTPUT
L R
ST2
MAIN M
MUTE
MUTE MUTE
MATRIX 2 THE SAME

Allen & Heath 15 ZED-4 BUS User Guide
MONO INPUT CHANNEL
1
2
3
4
5
1
Microphone Input Socket
Standard 3-Pin XLR socket wired as Pin 1=Chassis, Pin 2=hot (+),
Pin 3=Cold (-).
2
Line Input Jack Socket
Standard 1/4” (6.25mm) Jack socket or balanced or unbalanced line
level signals. Wired Tip=Hot(+), Ring=cold (-), Sleeve=Chassis.
The Line input overrides the Mic input, so i you want to hear some-
thing plugged in to the xlr socket, make sure nothing is plugged into
the Line input.
3
Insert Jack Socket
Standard 1/4” (6.25mm) Jack socket or unbalanced insert send and
return signals. Wired Tip=send, Ring=return, Sleeve=Chassis.
Nominal level is 0dBu. The insert point is a ter the 100Hz ilter and
be ore the EQ.
4
Gain Contro
This adjusts the gain o the input ampli ier to match the signal level
o the input. The gain is varied rom –6dB (attenuation) to +63dB
or signals plugged in to the xlr socket (Mic Input) and –10dB to
+26dB or signals plugged into the Line input jack.
5
100Hz Hi-pass Fi ter
The Hi-pass ilter is used or reducing pop noise and rum-
ble rom microphone signals. It is a 2-pole (12dB per oc-
tave) ilter with a corner requency set at 100Hz.
The ilter a ects signals rom both Mic XLR and Line jack
socket.
10.00 Hz 100.00 1000.00 10000.00 30000.00
-50.00
-40.00
-30.00
-20.00
-10.00
0.00
10.00
dBr
6
6
48V Phantom Power Switch
Applies +48V to pins 2 and 3 o the XLR input though 6k8 resistors
or phantom powered condenser microphones.
MIC
INSERT
LINE
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10 20 30
40
50
DIR OUT
48V
HPF
100Hz
1
1
1
1
IN
Direct Output Socket
Standard 1/4” (6.25mm) Jack socket. Wired Tip=Hot(+),
Ring=cold (-), Sleeve=Chassis. For recording individual channels,
actory de ault is pre ade signal (post mute).
The nominal level is 0dBu and the output is impedance balanced.
7
7

Allen & Heath 16 ZED-4 BUS User Guide
MONO INPUT CHANNEL
7
8
HMF EQ
The HMF (High Mid Frequency) equaliser a ects the upper middle
o the audible requency range. The requency graduations on the
sweep control are the centre requencies o the EQ.
HF EQ
The HF (High Frequency) equaliser a ects the requency response
o the higher audible requencies. The corner requency o 12kHz is
around 3dB rom the maximum cut or boost o the circuit.
6
-15
LF -15
+15
+15
180
45
LM 35Hz
0
-15
400
1k
250
+15
3k
HM
00
500Hz
-15
1k
6k
15k
4k
+15
HF
EQ IN
12k
80Hz
7
8
6
20.00 Hz 100.00 1000.00 10000.00 30000.00
-20.00
-15.00
-10.00
-5.00
0.00
5.00
10.00
15.00
20.00
dBr
20.00 Hz 100.00 1000.00 10000.00 30000.00
-20.00
-15.00
-10.00
-5.00
0.00
5.00
10.00
15.00
20.00
dBr
LMF EQ
The LMF (Lower Mid Frequency) equaliser a ects the lower middle
o the audible requency range.
20.00 Hz 100.00 1000.00 10000.00
-20.00
-15.00
-10.00
-5.00
0.00
5.00
10.00
15.00
20.00
dBr

Allen & Heath 17 ZED-4 BUS User Guide
LF EQ
The LF (Low Frequency) equaliser a ects the response at the low
end o the audio range. The graph shows the response o the LF EQ
at maximum cut and boost. The corner requency is 80Hz.
MONO INPUT CHANNEL
9
10
11
11
12
9
Auxes 1 & 2
Each o these controls sends a signal to an auxiliary bus. The signal is
sourced pre- ade which means that the level is independent o , and
una ected by the ader. Auxes 1 & 2 are primarily used or oldback
monitoring purposes, as the ader does not a ect the level. They can
also be used as eeds or recording and are available sources to the
USB inter ace or this purpose.
These sends are a ected by the Mute switch, so muting the channel
will also mute the Aux sends.
The control varies the signal level to the bus rom o ( ully attenu-
ated) to +6dB, with unity gain at the arrow.
There are master level controls or all o the Aux outputs situated in
the master section o the mixer.
10
Auxes 3 & 4
These are switched pre or post- ade so they can be used as either
monitor sends or e ects sends.
12
13
20.00 Hz 100.00 1000.00 10000.00
-20.00
-15.00
-10.00
-5.00
0.00
5.00
10.00
15.00
20.00
dBr
EQ IN
The EQ IN switch enables the equaliser when pushed in. The EQ is
bypassed when the switch is in its up position.
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
AUX4
+6
AUX5
POST
+6
AUX6
POST
PRE
POST
OO
OO
OO
OO
OO
OO
-15
LF
+15
EQ IN
80Hz
Auxes 5 & 6
Sourced post ade, so that the level is set with the send control but
will be a ected by the ader position. Mainly used or e ects.
13

Allen & Heath 18 ZED-4 BUS User Guide
14
PAN
The pan control adjusts how the signal rom the mono input channel is
shared between the le t and right buses and subsequently the main stereo
outputs, similarly to pairs o Groups. Set to the mid position, equal amounts
o signal are ed to le t and right, with pan set to L, none is sent to the Right
bus.
PFL Switch
The PFL (Pre-Fade Listen) switch sends the channel signal to the PFL bus
and subsequently to the headphones and the main L R meters. Used or
checking the audio signal be ore raising the ader or un-muting the channel.
15
Mute Switch
This mutes or cuts the signal to the buses and the Direct Out. A rectangular
LED illuminates to show the Mute switch is pressed.
14
Routing Switches
The routing switches connect the post- ade signal to the mix buses via the
pan control or the main LR bus and the group buses. For minimum noise
rom the mix bus summing ampli ier, leave the switches in their up positions
i the channel signal is not required on the bus.
MONO INPUT CHANNEL
1
ODD
PAN
L
EVEN
R
=
MUTE
PK !
PFL
SIG
M
L-R
1-2
3-4
10
OO
30
20
0
15
Signa & PK! LED
The Signal LED illuminates dimly at a threshold o –16dB nominal level and
gets brighter with higher level signal. The source or the signal & peak LED’s
is just a ter the EQ IN switch.
The PK! LED illuminates when the signal just a ter the EQ IN switch is
within 5dB o clipping.
16
17
18
16
17
18
19 19
Fader
The 100mm ader a ects the level o the channel signal to the le t & right,
mono and group buses and Auxes 5 & 6. Also Auxes 3 & 4 i switched to
post- ade. There is 10dB o gain at the top and the unity gain position is
marked by “0”.

Allen & Heath 19 ZED-4 BUS User Guide
STEREO INPUT CHANNEL
2
4
1
ST1 (& ST3) Phono sockets
These are stereo inputs additional to the main stereo channel in-
puts (below). The gain is varied by the ST1 (& ST3) level control
and these inputs can be sent to either the stereo channels or
straight to the L R main bus, depending on the setting o the under-
panel switch. These inputs are unbalanced.
The source or the ST3 input can be switched rom the phono
sockets to the USB return signal with the selector switch below the
USB socket .
1
5
3
2
Stereo Inputs 1 (& 3) Leve contro
Adjust the level o the stereo inputs 1 & 3 rom o ( ully attenu-
ated) to maximum where it has 10dB o gain.
3
4
5
ST1 (& 3) Routing se ector switch
This switch selects whether the ST1 (or ST3) signal is sent to the L
R bus directly, or the stereo channel below. When it is pressed in,
the ST1 (or ST3) signal sums together with the main stereo inputs
ST2 (or ST4).
ST2 (& ST4) input jack sockets
Standard 1/4” jack sockets or line level stereo signals. Can be used
with a mono input where the L/M input will also connect to the R
input i nothing is plugged in to R.
The Stereo 1 inputs accept unbalanced or balanced signals.
Stereo Input ST2 (& ST4) Leve contro
Adjusts the level o the ST2 (& ST4) input. The range is rom o to
+10dB.
10
-30
-20
-5
0
5
-10
ST1
LEV
OO
10
-30
-20
-5
0
5
-10
OO
To LR
To CH
ST1 IN
R
ST2
L/M
R
ST2
LEV
IN
L

Allen & Heath 20 ZED-4 BUS User Guide
STEREO INPUT CHANNEL
STEREO Channe EQ
The EQ on the stereo Channel is 4 band, ixed requency and com-
prises a shelving high requency section, a shelving low requency
section and two ixed mid requency controls.
6
7
-15 +15
HF
12k
-15
HM
+15
2k5
-15
LM
+15
250Hz
-15
LF
+15
80Hz
EQ IN
20.00 Hz 100.00 1000.00 10000.00 30000.00
-20.00
-15.00
-10.00
-5.00
0.00
5.00
10.00
15.00
20.00
dBr
STEREO HF EQ
STEREO LF EQ
10.00 Hz 100.00 1000.00 10000.00
-20.00
-15.00
-10.00
-5.00
0.00
5.00
10.00
15.00
20.00
dBr
10.00 Hz 100.00 1000.00 10000.00
-20.00
-15.00
-10.00
-5.00
0.00
5.00
10.00
15.00
20.00
dBr
STEREO LMF AND HMF EQ
EQ IN
The EQ IN switch enables the
equaliser when pushed in. The
EQ is bypassed when the switch
is in its up position.
6
7