USER GUIDE
Publication AP7085 Issue 3
Allen & Heath 2 ZED-12FX, 16FX & 22FX User Guide
ZED products comply with the European Electromagnetic Compatibility directive 2014/30/EU and the European Low Voltage directive 2014/35/EU.
Any changes or modifications to the product not approved by Allen & Heath could void the compliance of the
product and therefore the user’s authority to operate it.
Register your product online at www.allen-heath.com/register.
Copyright © 2018 Allen & Heath. All rights reserved.
Limited One Year Manufacturer’s Warranty
Allen & Heath warrants the Allen &Heath -branded hardware product and accessories contained in the original
packaging ("Allen & Heath Product”) against defects in materials and workmanship when used in accordance
with Allen & Heath's user manuals, technical specifications and other Allen & Heath product published guidelines
for a period of ONE (1) YEAR from the date of original purchase by the end-user purchaser ("Warranty Period").
This warranty does not apply to any non-Allen & Heath branded hardware products or any software, even if packaged or sold with Allen & Heath hardware.
Please refer to the licensing agreement accompanying the software for details of your rights with respect to the use
of software/firmware (“EULA”).
Details of the EULA, warranty policy and other useful information can be found on the Allen & Heath website:
www.allen-heath.com/legal.
Repair or replacement under the terms of the warranty does not provide right to extension or renewal of the warranty period. Repair or direct replacement of the product under the terms of this warranty may be fulfilled with functionally equivalent service exchange units.
This warranty is not transferable. This warranty will be the purchaser’s sole and exclusive remedy and neither Allen & Heath nor its approved service centres shall be liable for any incidental or consequential damages or breach
of any express or implied warranty of this product.
Conditions Of Warranty
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. The warranty does not cover fader
wear and tear.
Any necessary adjustment, alteration or repair has been carried out by an authorised Allen & Heath distributor or
agent.
The defective unit is to be returned carriage prepaid to the place of purchase, an authorised Allen & Heath distributor or agent with proof of purchase. Please discuss this with the distributor or the agent before shipping. Units returned should be packed in the original carton to avoid transit damage.
DISCLAIMER: Allen & Heath shall not be liable for the loss of any saved/stored data in products that are either
repaired or replaced.
Check with your Allen & Heath distributor or agent for any additional warranty information which may apply. If
further assistance is required please contact Allen & Heath Ltd.
Allen & Heath 3 ZED-12FX, 16FX & 22FX User Guide
PACKED ITEMS
Check that you have received the following:
Mains Lead
Check that the correct
mains plug is fitted.
ZED-12FX, 16FX or ZED-22FX MIXER
Type A-B USB Lead
To connect the ZED to
your computer.
OR
OR
OO
30
OO 10
-30
-20
-5
0
5
-10
ST
RTN
To LR
To 7-8
OO 10
-30
-20
-5
0
5
-10
2TRK
RTN
OO 10
-30
-20
-5
0
5
-10
USB
RTN
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
PK !
PFL
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
ON
To LR
To 9-10
ON
To LR
To 11-12
ON
ST3
USB
AUX1-2
AUX3-FX
LR PRE
UP=LR post
SENDRETURN
L R
BAL
=
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST2
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST1
MUTE
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
POST
PRE
LR
OO +6
OO +6
ST2 IN
L/M
R
ST3 IN
L/MRL/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
INSERT
6
ST RTN
L
R
2TRK RTN
L
R
REC OUT
L
R
ALT OUT
L
R
INSERT5INSERT4INSERT3INSERT2INSERT
1
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
1 2 3 4 5 6 7-8 9-10 11-12 FX RL
0
0
0
PHANTOM POWER
ALLEN
HEATH
LINE LINE LINE LINE LINE LINE
MIC MIC MIC MIC MIC MIC
ST4 INST1 IN
L/M
R
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
POST POST POST POST POST POST POST POST POST
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
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
AUX1
AUX2
STEREO
FX
POSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOST
F/SWITCH
FX MUTE
Bank 9-16
TAP
&
OO
30
OO 10
-30
-20
-5
0
5
-10
ST
RTN
To LR
To CH
OO 10
-30
-20
-5
0
5
-10
2TRK
RTN
OO 10
-30
-20
-5
0
5
-10
USB
RTN
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
PK !
PFL
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
ON
To LR
To CH
ON
To LR
To CH
ON
ST3
USB
AUX1-2
AUX3-FX
LR PRE
UP=LR post
SENDRETURN
L R
BAL
=
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST2
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST1
MUTE
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
POST
PRE
LR
ST2 IN
L/M
R
ST3 IN
L/MRL/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
INSERT
16
ST RTN
L
R
2TRK RTN
L
R
REC OUT
L
R
ALT OUT
L
R
INSERT15INSERT14INSERT13INSERT12INSERT
11
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
11 12 13 14 15 16 17-18 19-20 21-22 FX RL
0
0
0
PHANTOM POWER
ALLEN
HEATH
LINE LINE LINE LINE LINE LINE
MIC MIC MIC MIC MIC MIC
ST4 INST1 IN
L/M
R
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
POST POST POST POST POST POST POST POST POST
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
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
FX
POSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOST
F/SWITCH
FX MUTE
INSERT
10
LINE
MIC
INSERT
9
LINE
MIC
INSERT
8
LINE
MIC
INSERT
7
LINE
MIC
INSERT
6
LINE
MIC
INSERT
5
LINE
MIC
INSERT
4
LINE
MIC
INSERT
3
LINE
MIC
INSERT
2
LINE
MIC
INSERT
1
LINE
MIC
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
10
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
9
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
8
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
7
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
6
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
5
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
4
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
3
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
2
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
1
500
1k
3k
POST
OO +6
OO +6
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
AUX1
AUX2
STEREO
Bank 9-16
TAP
&
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
1
1
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
2
2
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
3
3
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
4
4
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
5
5
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
6
6
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
7
7
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
8
8
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
9
9
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 6326
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
10
10
LINE
MIC
500
1k
3k
POST
10
-30
-20
-5
0
5
-10
ST
RTN
To LR
To CH
ON
-30
-20
-5
5
0
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
BAL
=
PK !
PFL
STEREO
ST1
MUTE
ST RTN
L
R
11-12
ST1 IN
L/M
R
POST
OO
30
5
10
20
5
0
10
O
10
-30
-20
-5
0
5
-10
2 TRK
RTN
To LR
To CH
ON
-30
-20
-5
5
0
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
BAL
=
PK !
PFL
STEREO
ST2
MUTE
13-14
POST
OO
30
5
10
20
5
0
10
10
-30
-20
-5
0
5
-10
USB
RTN
To LR
To CH
ON
-30
-20
-5
5
0
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
BAL
=
PK !
PFL
STEREO
ST3
MUTE
15-16
POST
OO
30
5
10
20
5
0
10
OO
30
MUTE
PK !
PFL
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
+6
ALT
OUT
MONITOR
LR
+6
AUX1
MASTER
+6
AUX2
MASTER
5
20
10
5
0
10
USB
AUX1-2
AUX 3-FX
LR PRE
UP=LR post
SENDRETURN
L R
BAL
=
POST
PRE
LR
L/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
ALT OUT
L
R
FX RL
0
0
0
PHANTOM POWER
ALLEN
HEATH
ST4 IN
AUX2 OUT
AUX3 OUT
FOOT SWITCH
INSERT L
MONO OUT
OO
30
5
10
20
5
0
10
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
2TRK RTN
L
R
ST 2 IN
L/M
R
REC OUT
L
R
ST 3 IN
L/M
R
INSERT
+6
+6
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
AUX1
AUX2
STEREO
Bank 9-16
TAP
FX FX FX FX FX FX FX FX FXFXFX
FX
&
Allen & Heath 4 ZED-12FX, 16FX & 22FX User Guide
SAFETY INSTRUCTIONS
WARNINGS - Read the following before proceeding :
CAUTION
ATTENTION: RISQUE DE CHOC ELECTRIQUE – NE PAS OUVRIR
Read instructions: Retain these safety and operating instructions for future reference. Adhere to all warnings printed
here and on the console. Follow the operating instructions printed in this User Guide.
Do not remove cover: Operate the console with its covers correctly fitted.
Power sources: Connect the console to a mains power unit only of the type described in this User Guide and marked
on the rear panel. Use the power cord with sealed mains plug appropriate for your local mains supply as provided with the console. If the provided plug does not fit into your outlet consult your service
agent for assistance.
Power cord routing: Route the power cord so that it is not likely to be walked on, stretched or pinched by items placed
upon or against it.
Grounding: Do not defeat the grounding and polarisation means of the power cord plug. Do not remove or tam-
per with the ground connection in the power 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 wet conditions. Do not place containers of liquids on it which might spill into any openings.
Ventilation: Do not obstruct the ventilation slots or position the console where the air flow required for ventilation
is impeded. If the console is to be operated in a rack unit or flightcase ensure that it is constructed to
allow 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 away from any equipment which produces heat or causes excessive vibration.
Servicing: Switch off the equipment and unplug the power cord immediately if it is exposed to moisture, spilled
liquid, objects fallen into the openings, the power cord or plug become damaged, during lightning
storms, or if smoke, odour or noise is noticed. Refer servicing to qualified technical personnel only.
Installation: Install the console in accordance with the instructions printed in this User Guide. Do not connect the
output of power amplifiers directly to the console. Use audio connectors and plugs only for their
intended purpose.
!
WARNING: This equipment must be earthed.
Allen & Heath 5 ZED-12FX, 16FX & 22FX 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 plug wiring instructions
The console is supplied with a moulded mains plug fitted to the AC
mains power lead. Follow the instructions below if the mains plug has to
be replaced. The wires in the mains lead are coloured in accordance
with the following 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 symbol. 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 followed carefully in the event of the
plug being changed.
General Precautions:
Damage : To prevent damage to the controls and cosmetics avoid placing heavy
objects on the control surface, scratching the surface with sharp objects, or
rough handling and vibration.
Environment : Protect from excessive dirt, dust, heat and vibration when operating
and storing. Avoid tobacco ash, smoke, drinks spillage, and exposure to rain
and moisture. If the console becomes wet, switch off and remove mains power immediately. Allow to dry out thoroughly before using again.
Cleaning : Avoid the use of chemicals, abrasives or solvents. The control panel is
best cleaned with a soft brush and dry lint-free cloth. The faders, switches and
potentiometers are lubricated for life. The use of electrical lubricants on these
parts is not recommended. The fader and potentiometer knobs may be removed for cleaning with a warm soapy solution. Rinse and allow to dry fully
before refitting them.
Transporting : The console may be transported as a free-standing unit or mounted in
a rack or flightcase. Protect the controls from damage during transit. Use
adequate packing if 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 frequency selective or wide range hearing loss.
Allen & Heath 6 ZED-12FX, 16FX & 22FX User Guide
CONTENTS
Thank you for purchasing your Allen & Heath ZED mixer. To ensure that
you get the maximum benefit from the unit please spare a few minutes
familiarizing yourself with the controls and setup procedures outlined in
this user guide. For further information please refer to the additional
information 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 ............................................. 2
Packed Items ....................................... 3
Safety Instructions ............................. 4
Contents ............................................. 6
Panel Drawings ................................... 7
Introduction to ZED-12, 16 & 22FX 10
Specifications ...................................... 11
Dimensions ......................................... 12
Block Diagram .................................... 13
Mono Input Channel ......................... 14
Stereo Input Channel ST1 ............... 17
Stereo Input Channel ST2, 3 & FX . 19
Effects Processor ............................... 20
Master Section ................................... 22
USB Connection ................................ 24
Pro Tools 9 on a Mac with ZED ..... 25
Application Information—Live ........ 26
Application Information—Studio ... 27
Wiring Notes ..................................... 28
Allen & Heath 7 ZED-12FX, 16FX & 22FX User Guide
PANEL DRAWINGS: 12FX
AC MAINS IN ~
100 - 240V~ 47-63Hz 40W MAX
T1A L 250V 20mm
FUSE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
REPLACE FUSE WITH SAME TYPE AND RATING.CAUTION: FOR CONTINUED 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
0
I
ON
WARNING: THIS APPARATUS MUST BE EARTHED
Serial No.
ENGINEERED IN ENGLAND BY ALLEN & HEATH LIMITED.
(2) this device must accept any interference received,
This device complies with Part 15 of the FCC Rules.
(1) this device may not cause harmful interference, and
Operation is subject to the following two conditions:
including interference that may cause undesired operation.
MADE IN CHINA
OO
30
OO 10
-30
-20
-5
0
5
-10
ST
RTN
To LR
To 7-8
OO 10
-30
-20
-5
0
5
-10
2TRK
RTN
OO 10
-30
-20
-5
0
5
-10
USB
RTN
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
PK !
PFL
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
ON
To LR
To 9-10
ON
To LR
To 11-12
ON
ST3
USB
AUX1-2
AUX3-FX
LR PRE
UP=LR post
SENDRETURN
L R
BAL
=
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST2
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST1
MUTE
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
POST
PRE
LR
OO +6
OO +6
ST2 IN
L/M
R
ST3 IN
L/M
R
L/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
INSERT
6
ST RTN
L
R
2TRK RTN
L
R
REC OUT
L
R
ALT OUT
L
R
INSERT
5
INSERT
4
INSERT
3
INSERT
2
INSERT
1
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
1 2 3 4 5 6 7-8 9-10 11-12 FX RL
0
0
0
PHANTOM POWER
ALLEN
HEATH
LINE LINE LINE L INE LINE LINE
MIC MIC MIC MIC MIC MIC
ST4 INST1 IN
L/M
R
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
POST POST POST POST POST POST POST POST POST
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
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
AUX1
AUX2
STEREO
FX
POST
FX
POST
FX
POST
FX
POST
FX
POST
FX
POST
FX
POST
FX
POST
F/SWITCH
FX MUTE
Bank 9-16
TAP
&
Allen & Heath 8 ZED-12FX, 16FX & 22FX User Guide
PANEL DRAWINGS: 16FX
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
1
1
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
2
2
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
3
3
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
4
4
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
5
5
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
6
6
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
7
7
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
8
8
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
INSERT
9
9
LINE
MIC
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15MF+15
-15 +15
80Hz
LF
5
10
20
5
0
10
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
PAN
=
PK !
PFL
MUTE
10
10
LINE
MIC
500
1k
3k
POST
10
-30
-20
-5
0
5
-10
ST
RTN
To LR
To CH
ON
-30
-20
-5
5
0
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
BAL
=
PK !
PFL
STEREO
ST1
MUTE
ST RTN
L
R
11-12
ST1 IN
L/M
R
POST
OO
30
5
10
20
5
0
10
O
10
-30
-20
-5
0
5
-10
2 TRK
RTN
To LR
To CH
ON
-30
-20
-5
5
0
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
BAL
=
PK !
PFL
STEREO
ST2
MUTE
13-14
POST
OO
30
5
10
20
5
0
10
10
-30
-20
-5
0
5
-10
USB
RTN
To LR
To CH
ON
-30
-20
-5
5
0
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
+6
AUX1
PRE
+6
AUX2
PRE
+6
AUX3
+6
POST
L R
BAL
=
PK !
PFL
STEREO
ST3
MUTE
15-16
POST
OO
30
5
10
20
5
0
10
OO
30
MUTE
PK !
PFL
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
+6
ALT
OUT
MONITOR
LR
+6
AUX1
MASTER
+6
AUX2
MASTER
5
20
10
5
0
10
USB
AUX1-2
AUX 3-FX
LR PRE
UP=LR post
SENDRETURN
L R
BAL
=
POST
PRE
LR
L/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
ALT OUT
L
R
FX RL
0
0
0
PHANTOM POWER
ALLEN
HEATH
ST4 IN
AUX2 OUT
AUX3 OUT
FOOT SWITCH
INSERT L
MONO OUT
OO
30
5
10
20
5
0
10
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
2TRK RTN
L
R
ST 2 IN
L/M
R
REC OUT
L
R
ST 3 IN
L/M
R
INSERT
+6
+6
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
AUX1
AUX2
STEREO
Bank 9-16
TAP
FX FX FX FX FX FX FX FX FX
FX
FX
FX
&
AC MAINS IN ~
100 - 240V~ 47-63Hz 26W
T1A L 250V 20mm
FUSE
ALLEN&HEATH
OFF
0
I
ON
Serial No.
ENGINEERED IN ENGLAND BY ALLEN & HEATH LIMITED. MADE IN CHINA
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
REPLACE FUSE WITH SAME TYPE AND RATING.CAUTION: FOR CONTINUED 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: THIS APPARATUS MUST BE EARTHED
(2) this device must accept any interference received,
This device complies with Part 15 of the FCC Rules.
(1) this device may not cause harmful interference, and
Operation is subject to the following two conditions:
including interference that may cause undesired operation.
Laite on liitettävä suojamaadoituskoskettimilla varustettuun pistorasiaan
Apparatet må tilkoples jordet stikkontakt
Apparaten skall anslutas till jordat uttag
CET APPAREIL DOIT ETRE MIS A LA TERRE
Conforms to ANSI/UL Std. 60065-2003
Cert to CAN/CSA Std. C22.2 No 60065-03
Allen & Heath 9 ZED-12FX, 16FX & 22FX User Guide
PANEL DRAWINGS: 22FX
AC MAINS IN ~
100 - 240V~ 47-63Hz 40W MAX
T1A L 250V 20mm
FUSE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
REPLACE FUSE WITH SAME TYPE AND RATING.
CAUTION: FOR CONTINUED 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
0
I
ON
WARNING: THIS APPARATUS MUST BE EARTHED
Serial No.
ENGINEERED IN ENGLAND BY ALLEN & HEATH LIMITED.
(2) this device must accept any interference received,
This device complies with Part 15 of the FCC Rules.
(1) this device may not cause harmful interference, and
Operation is subject to the following two conditions:
including interference that may cause undesired operation.
MADE IN CHINA
OO
30
OO 10
-30
-20
-5
0
5
-10
ST
RTN
To LR
To CH
OO 10
-30
-20
-5
0
5
-10
2TRK
RTN
OO 10
-30
-20
-5
0
5
-10
USB
RTN
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
PK !
PFL
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
ON
To LR
To CH
ON
To LR
To CH
ON
ST3
USB
AUX1-2
AUX3-FX
LR PRE
UP=LR post
SENDRETURN
L R
BAL
=
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST2
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST1
MUTE
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
POST
PRE
LR
ST2 IN
L/M
R
ST3 IN
L/MRL/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
INSERT
16
ST RTN
L
R
2TRK RTN
L
R
REC OUT
L
R
ALT OUT
L
R
INSERT
15
INSERT
14
INSERT
13
INSERT
12
INSERT
11
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
11 12 13 14 15 16 17-18 19-20 21-22 FX RL
0
0
0
PHANTOM POWER
ALLEN
HEATH
LINE LINE LINE LINE LINE LINE
MIC MIC MIC MIC MIC MIC
ST4 INST1 IN
L/M
R
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
POST POST POST POST POST POST POST POST POST
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
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
FX
POSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOST
F/SWITCH
FX MUTE
INSERT
10
LINE
MIC
INSERT
9
LINE
MIC
INSERT
8
LINE
MIC
INSERT
7
LINE
MIC
INSERT
6
LINE
MIC
INSERT
5
LINE
MIC
INSERT
4
LINE
MIC
INSERT
3
LINE
MIC
INSERT
2
LINE
MIC
INSERT
1
LINE
MIC
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
10
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
9
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
8
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
7
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
6
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
5
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
4
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
3
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
2
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
1
500
1k
3k
POST
OO +6
OO +6
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
AUX1
AUX2
STEREO
Bank 9-16
TAP
&
Allen & Heath 10 ZED-12FX, 16FX & 22FX User Guide
INTRODUCTION TO THE ZED-12FX, 16FX & 22FX
The following is a technical overview of ZED, if you want to, please skip to the next section.
The Allen & Heath ZED series mixers have been carefully and lovingly designed in the beautiful county of Cornwall in the UK and is manufactured alongside a wide range of professional audio mixing consoles. Many of 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 vertically mounted channel circuit
boards with each rotary control fixed with a metal nut to the front panel. This provides a very robust product that will resist damage and
give years of reliable use. It also makes servicing much easier should it be required, with the ability to remove one particular channel from
the mixer at a time, or easily change a fader.
The audio circuitry is based on years of continual development and refinement , the performance of all the elements within the mixer scrutinised and perfected to ensure the very best sound quality possible.
Multi-application:
ZED’s are great for live mixing! Their layout makes them very easy to use and the 100mm faders give much better control of the mix compared to most products at a similar price.
They are also great for recording, either a live show or an audio project at home can be built up track by track and studio monitor speakers
can be fed from the Alt Outputs.
ZED mixers are also ideal for teaching establishments, houses of worship, hotels and conference centres where their ease of use and robust
qualities make them a top choice.
Mic/Line Pre-amps:
Based on the pre-amps from the PA series, the ZED-12FX, 16FX & 22FX pre-amps use a two stage design, with carefully controlled amounts
of gain in each stage. When amplifying the signal from the XLR input, the gain range is huge (69dB of range to be exact) and is very evenly
distributed around the gain control, meaning better control of signal level. Most of the gain comes from the first 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 of the pre-amp by
using the line input jack socket. This has the great advantage of lower noise when using the line input. (It is common to attenuate line level
signals, the amplify them back up again which can give more noise or hiss).
EQ:
The ZED series mixers are equipped with a 3-band equaliser circuit on each mono input and a 2-band EQ on the stereo channels. The frequency and response of each has been carefully chosen to give the maximum performance when using the EQ on a variety of sources.
AUX system:
Zed 12FX, 16FX & 22fX mixers have 4 Aux buses. 3 are used for connecting external equipment such as foldback stage monitors, or external effects processors, and one is used for the internal effects processor.
Effects Processor:
Zed-12FX, 16FX & 22FX mixers have a professional quality effects processor built in which uses our own effects algorithms developed by
our talented engineering staff at Allen & Heath. The effects range from classic reverbs, cascaded delay plus reverbs to shimmering flanger &
chorus effects. The different effects types are selected with a simple up/down button interface and the tempo of the delay settings can be
entered using the TAP button. Holding the TAP button allows the parameters of the effects to be adjusted. The audio signal to the DSP is
converted using 24 bit high dynamic range converters running at 48kHz sample rate, ensuring low noise, low distortion, transparent effects.
Mono and Stereo Channels:
One of the great things about the ZED series is the number and variety of things you can plug in. In addition to the mono channels there are
three stereo channels, each with a main stereo input on jack sockets, two of them have the ability to take additional stereo inputs from phono sockets, the third can take the USB audio input. Flexibility gives you control.
USB:
Getting audio to and from a computer easily is now a common requirement for live sound and music production. The way we have implemented this on ZED is super-flexible and super-easy! No longer do you need to fiddle around the back of your computer to get to the
soundcard inputs, only to find 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 from your PC or MAC.
As you can tell, we’re very proud of this product we hope you like it too.
Allen & Heath 11 ZED-12FX, 16FX & 22FX User Guide
SPECIFICATIONS
Operating Levels
Input
Mono channel (XLR) Input +6 to –63dBu for 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 = Off to +10dB)
Stereo input (phono sockets) 0dBu nominal (control = Off to +10dB)
Output
L, R & Mono Outputs (L&R XLR, Mono Jack) 0dBu nominal. +21dBu maximum.
Aux Outputs (Jack sockets) 0dBu nominal. +21dBu maximum.
Alt Outputs (phono sockets) 0dBu nominal. +21dBu maximum.
Rec Outputs (phono sockets) 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 from nominal (0Vu) 21dB
USB in & out headroom from 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
Mic Pre EIN @ max gain 150R input Z 22-22kHz -127dBu
Mix L/R out, L/R faders = 0, 22-22kHz ZED-12FX -88dBu
Mix L/R out, L/R faders = 0, 22-22kHz ZED-16FX -86dBu
Mix L/R out, L/R faders = 0, 22-22kHz ZED-22FX -84dBu
Allen & Heath 12 ZED-12FX, 16FX & 22FX User Guide
Dimensions
Weight
ZED-12FX ZED-16FX ZED-22FX
Unpacked 6.5kg (14.3 lb) 8.5kg (18.7 lb) 10.5kg (23.1 lb)
Packed 10.5kg (23.1lb) 13kg (28.6 lb) 15kg (33 lb)
465mm (18.3 inches)
ZED-22FX 645mm (25.4 inches)
ZED-12FX 385mm (15.2 inches)
A rack mounting kit is available for ZED-12FX. The part number is: ZED1402-RK19
A rack mounting kit is available for ZED-16FX. The part number is: ZED1802-RK19
92
450
R20
98
43
(17.7”)
(3.9”)
(3.6”)
(1.7”)
mm (inches)
ZED-16FX 464mm (18.3 inches)
OO
30
OO 10
-30
-20
-5
0
5
-10
ST
RTN
To LR
To CH
OO 10
-30
-20
-5
0
5
-10
2TRK
RTN
OO 10
-30
-20
-5
0
5
-10
USB
RTN
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
PK !
PFL
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
ON
To LR
To CH
ON
To LR
To CH
ON
ST3
USB
AUX1-2
AUX3-FX
LR PRE
UP=LR post
SENDRETURN
L R
BAL
=
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST2
MUTE
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
ST1
MUTE
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
POST
PRE
LR
ST2 IN
L/M
R
ST3 IN
L/MRL/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
INSERT
16
ST RTN
L
R
2TRK RTN
L
R
REC OUT
L
R
ALT OUT
L
R
INSERT
15
INSERT
14
INSERT
13
INSERT
12
INSERT
11
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
100Hz
12kHz
-15 +15
HF
-15HM+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
11 12 13 14 15 16 17-18 19-20 21-22 FX RL
0
0
0
PHANTOM POWER
ALLEN
HEATH
LINE LINE LINE LINE LINE LINE
MIC MIC MIC MIC MIC MIC
ST4 INST1 IN
L/M
R
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
POST POST P OST P OST POST POST POST POST P OST
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
OO
30
5
10
20
5
0
10
OO
30
5
10
20
5
0
10
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
FX
POSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOSTFXPOST
F/SWITCH
FX MUTE
INSERT
10
LINE
MIC
INSERT
9
LINE
MIC
INSERT
8
LINE
MIC
INSERT
7
LINE
MIC
INSERT
6
LINE
MIC
INSERT
5
LINE
MIC
INSERT
4
LINE
MIC
INSERT
3
LINE
MIC
INSERT
2
LINE
MIC
INSERT
1
LINE
MIC
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
10
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
9
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
8
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
7
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
6
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
5
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
4
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
3
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
2
500
1k
3k
POST
OO
30
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15HM+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
1
500
1k
3k
POST
OO +6
OO +6
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
AUX1
AUX2
STEREO
Bank 9-16
TAP
&
Allen & Heath 13 ZED-12FX, 16FX & 22FX User Guide
BLOCK DIAGRAM
+
-
GAIN
HM
HF
3 BAND EQUALISER
MONO CHANNEL
ZED 12FX, 16FX & 22FX BLOCK DIAGRAM
100Hz
MIC IN
PP
FADER
PFL
PEAK
STEREO CHANNEL
AUX1
AUX 2
AUX 3
FX
LF
ST1 2 & 3
R
L
R
L
GAIN
STEREO RETURN
+
+
-
LINE IN
+48V
INSERT
MUTE
PAN
GAIN
LR
SUM
HF
2 BAND EQUALISER
LF
FADER
PFL
PEAK
AUX 1
AUX 2
AUX 3
FX
MUTE
BAL
SUM
+
SUM
L INSERT
R INSERT
FADERS
L
R
MONO OUT
MAIN LR
HPF
PFL
AUX 4
AUX 3
AUX 2
AUX 1
R
L
CHAN
MAIN OUT
+
SUM
GLOBAL 48V SWITCH
WIRE PAD
2TRK RTN
ON
STEREO
R
L
GAIN
LR
CHAN
ON
STEREO CHANNEL 1
STEREO CHANNEL 2
REC OUT
R
L
GAIN
LR
CHAN
ON
STEREO CHANNEL 3
USB RETURN FROM COMPUTER
RECORD OUT
ALT OUT
R
L
STEREO EFFECTS CHANNEL
ALT OUT
AUX1
MASTER LEVEL
AUX1 OUT
AUX2
MASTER LEVEL
AUX2 OUT
AUX3 OUT
ALT LEVEL
2 TRK RTN TO MONITOR SELECTION
2TRK RTN
AUX 1-2
AUX 3-FX
L-R PRE
USB 1 STEREO I/O
AUX 1
AUX 2
2 TRK RTN
USB RTN
USB
RETURN
USB RETURN
USB DEVICE
PFL ACTIVE
PFL ACTIVE
METERS
MIX POST
MONITOR
PHONES
LEVEL
HEADPHONES
PFL/AFL
TO ALT OUT
+
SUM
RECESSED SWITCHES
0dBu NOMINAL
PRIORITY SWITCHING
PRIORITY SWITCHING
RECORD OUT
SOLDER LINK
EXT FX IN
R
L
EFFECTS SEND
EFFECTS SEND
+
+
SUM
DSP
EFFECT TYPE
BANK
SEL UP
SEL DOWN
TAP/PARAMETER
EFFECTS
PROCESSOR
AUX 1
AUX 2
SUM
+
STEREO
MUTE
BAL
FOOTSWITCH
PFL
Allen & Heath 14 ZED-12FX, 16FX & 22FX User Guide
MONO INPUT CHANNEL
Mic Input Socket
Standard 3-Pin XLR socket wired as Pin 1=Chassis, Pin 2=hot
(+), Pin 3=Cold (-).
Line Input Jack Socket
Standard 1/4” (6.25mm) Jack socket for balanced or unbalanced line
level signals. Wired Tip=Hot(+), Ring=cold (-), Sleeve=Chassis.
The Line input overrides the Mic input, so if you want to hear
something plugged in to the xlr socket, make sure nothing is
plugged into the Line input.
Insert Jack Socket
Standard 1/4” (6.25mm) Jack socket for unbalanced insert send and
return signals. Wired Tip=send, Ring=return, Sleeve=Chassis. Nominal level is 0dBu. The insert point is after the 100Hz filter and before the EQ.
Gain Control
This adjusts the gain of the input amplifier to match the signal level
of the input. The gain is varied from –6dB (attenuation) to +63dB
for signals plugged in to the xlr socket (Mic Input) and –10dB to
+26dB for signals plugged into the Line input jack.
100Hz Hi-pass Filter
The Hi-pass filter is used for reducing pop noise and rumble from microphone signals. It is a 2-pole (12dB per octave) filter with a corner frequency set at 100Hz.
The filter affects signals from 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
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
INSERT
4
INSERT
3
INSERT
2
INSERT
1
100Hz
100Hz
100Hz
LINE LINE LINE LINE LINE LINE
MIC MIC MIC MIC MIC MIC
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
0
10
20
Allen & Heath 15 ZED-12FX, 16FX & 22FX User Guide
MONO INPUT CHANNEL
MF EQ
The MF (Mid Frequency) equaliser affects the middle of the audible
frequency range. The frequency graduations on the sweep control
are the centre frequencies of the EQ. The range has been carefully
chosen to cover “boomy” frequencies around 120Hz to 250Hz
which may need cutting back, or a lift at 2 to 3kHz may be required
for microphone intelligibility.
LF EQ
The LF (Low Frequency) equaliser
affects the response at the low end of
the audio range. The graph shows the
response of the LF EQ at maximum
cut and boost. The corner frequency
is 80Hz.
HF EQ
The HF (High Frequency) equaliser affects the frequency response
of the higher audible frequencies. The corner frequency of 12kHz is
around 3dB from the maximum cut or boost of the circuit. It has
plenty of gain and actually gives slightly more that the +/-15dB legend suggests.
10.00 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
10.00 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
10.00 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
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
100Hz
12kHz
-15 +15
HF
120Hz 4k
200
2k
650
-15
HM
+15
-15 +15
80Hz
LF
INSERT
4
INSERT
3
INSERT
2
INSERT
1
100Hz
12kHz
-15 +15
HF
-15
HM
+15
100Hz
12kHz
-15 +15
HF
-15
HM
+15
100Hz
12kHz
-15 +15
HF
-15
HM
+15
12kHz
-15 +15
HF
-15
HM
LINE LINE LINE LINE LINE LINE
MIC MIC MIC MIC MIC MIC
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
10
0
10
20
30
40
50
-6-10 63 26
GAIN
MIC
0
LINE
0
10
20
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
2k
650
500
1k
3k
120Hz 4k
200
650
500
Allen & Heath 16 ZED-12FX, 16FX & 22FX User Guide
MONO INPUT CHANNEL
Auxes 1 & 2
Each of these controls sends a signal to an auxiliary bus. The signal is
sourced pre-fade which means that the level is independent of, and unaffected by the fader. Auxes 1 & 2 are primarily used for foldback monitoring purposes, as the fader does not affect the level. They can also be used as feeds
for recording and are available sources to the USB interface for this purpose.
These sends are affected by the Mute switch, so muting the channel will also
mute the Aux sends.
The control varies the signal level to the bus from off (fully attenuated) to
+6dB, with unity gain at the arrow.
There are master level controls for the Aux 1 & 2 outputs situated in the
master section of the mixer.
Auxes 3 & FX
These are post-fade sends, which means that the signals are affected by the
channel fader. Primarily used for effects sends, the aux signal will reduce if
the fader is pulled down so keeping the correct proportion of the effect.
Muting the channel will also mute the Aux sends, and the send controls have
6dB gain fully clockwise.
There are no master level controls for Aux 3 output or the FX mix bus.
PAN
The pan control adjusts how the signal from the mono input channel is
shared between the left and right buses and subsequently the main stereo
outputs. Set to the mid position, equal amounts of signal are fed to left and
right, with pan set to L, none is sent to the Right bus.
PFL Switch & PK! LED
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 for
checking the audio signal before raising the fader or un-muting the channel.
The PK! LED illuminates dimly to indicate the PFL switch is pressed, and
brightly to indicate the channel signal is within 5dB of clipping.
Mute Switch
This mutes or cuts the signal to the left & right buses and the Aux buses. A
rectangular LED illuminates to show the Mute switch is pressed.
Fader
The 100mm fader affects the level of the channel signal to the left & right
buses and Auxes 3 & 4. There is 10dB of gain at the top and the unity gain
position is marked by “0”.
-30
-20
5
OO
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
-30
-20
5
OO
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
OO
30
120Hz 4k
200
2k
-15
HM
+15
-15 +15
80Hz
LF
5
10
20
5
0
10
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
FX
POST
L R
PAN
=
PK !
PFL
MUTE
-15
HM
+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
-15
HM
+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
-15
HM
+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
-15
HM
+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
-15
HM
+15
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
PAN
=
PK !
PFL
MUTE
1 2 3 4 5 6 7-8 9-10 11-12 FX RL
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
-15 +15
80Hz
LF
3k
120Hz 4k
200
2k
3k
120Hz 4k
200
2k
3k
120Hz 4k
200
2k
3k
120Hz 4k
200
2k
3k
120Hz 4k
200
2k
3k
POST POST POST POST POST POST POST POST POST
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
FX
POST
FX
POST
FX
POST
FX
POST
FX
POST
FX
POST
FX
POST
Allen & Heath 17 ZED-12FX, 16FX & 22FX User Guide
STEREO INPUT CHANNEL ST1
Stereo Return ON switch
This switches the signal on when pressed in. Leaving the switch in
the up position is recommended when the stereo return input is
not in use to minimise unwanted noise being passed through.
Stereo Return Phono sockets
This is an additional stereo input to the main stereo channel input
(below). The gain is varied by the ST RTN control and this input can
be sent to either the stereo channel or straight to the L R main bus,
depending on the setting of the under-panel switch. These inputs
are unbalanced.
Stereo Return Level control
Adjusts the level of the stereo return input from off (fully attenuated) to maximum where it has 10dB of gain.
Stereo Routing selector switch
This switch selects whether the Stereo Return signal is sent to the L
R bus directly, or the stereo channel 1. When it is pressed in, the
Stereo Return signal sums together with the main stereo input.
Stereo 1 input jack sockets
Standard 1/4” jack sockets for line level stereo signals. Can be used
with a mono input where the L/M input will also connect to the R
input if nothing is plugged in to R.
The Stereo 1 inputs accept unbalanced or balanced signals.
Stereo 1 Level control
Adjusts the level of the ST1 input. The range is from off to +10dB.
Stereo Channel EQ
The Stereo Channel EQ is 2 band with corner frequencies of 12kHz
for the HF and 80Hz for the LF.
10.00 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
OO 10
-30
-20
-5
0
5
-10
ST
RTN
To LR
To 7-8
OO 10
-30
-20
-5
0
5
-10
2TRK
RTN
OO 10
-30
-20
-5
0
5
-10
USB
RTN
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
ON
To LR
To 9-10
ON
To LR
To 11-12
ON
ST3
USB
AUX1-2
AUX3-FX
LR PRE
UP=LR post
SENDRETURN
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
ST2
-30
-20
-5
5
0
OO
-10
10
IN
-15 +15
12kHz
HF
-15 +15
80Hz
LF
ST1
ST2 IN
L/M
R
ST3 IN
L/M
R
L/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
ST RTN
L
R
2TRK RTN
L
R
REC OUT
L
R
ALT OUT
L
R
PHANTOM POWER
ST4 INST1 IN
L/M
R
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
F/SWITCH
FX MUTE
Bank 9-16
TAP
Allen & Heath 18 ZED-12FX, 16FX & 22FX User Guide
STEREO INPUT CHANNEL ST1
STEREO Aux 1 & 2 switch
This is an under-panel selector switch that configures Auxes 1 & 2 to be
either mono sends or a stereo send pair.
UP: A mono sum of the left & right stereo channel signal is sent to Aux
buses 1 & 2 by the control knobs.
DOWN: The left stereo channel signal is sent to Aux 1 and the right is
sent to Aux 2 by the control knobs.
Note: This can be useful when setting up a seperate stereo output from
the main L R output using Auxes 1 & 2, possibly for recording. This can be
selected to feed the USB output to create an independent stereo feed for
recording using a computer.
Balance control
The Balance control varies the relative levels between the left and right
channels.
Mute Switch
Mutes the signals to the main L R and the Aux buses.
Aux 1 & 2 sends
These control the level of the signals sent to the Aux 1 & 2 buses. The Aux
1 & 2 send controls are configured either as two mono sends or as a stereo
pair depending on the position of the STEREO switch (please see above).
Auxes 1 & 2 are pre-fade, but muted when the Mute switch is pressed.
There is 6dB of gain at the fully clockwise position.
Aux 3 & FX sends
These controls take a mono sum of the left & right stereo channel signals
from after the fader and send them to the Aux 3 and FX buses respectively.
They are muted when the Mute switch is pressed and have 6dB of gain at
maximum.
PFL Switch & PK! LED
The Pre-Fade Listen switch takes a mono sum of the stereo channel signals
from before the fader and mute switch. When pressed the signal will appear
on the L R meters and be fed to the headphones circuit for monitoring.
The PK! LED illuminates dimly to indicate the PFL switch is pressed, and
brightly to indicate the channel signal is within 5dB of clipping.
Fader
The 100mm fader affects the level of the channel signal to the left & right
buses and Auxes 3 & FX. There is 10dB of gain at the top and the unity gain
position is marked by “0”.
OO
30
-30
5
OO
10
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
PK !
PFL
L
-20
-30
-16
-12
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
L R
BAL
=
MUTE
-30
5
OO
10
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
-30
5
OO
10
-15 +15
12kHz
HF
-15 +15
80Hz
LF
OO +6
AUX1
PRE
OO +6
AUX2
PRE
OO +6
AUX3
OO +6
L R
BAL
=
PK !
PFL
STEREO
MUTE
POST
PRE
LR
OO +6
OO +6
0
0
0
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
-20
-30
-16
-12
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
AUX1
AUX2
STEREO
FX
POST
FX
POST
FX
POST
Bank 9-16
TAP
&
Allen & Heath 19 ZED-12FX, 16FX & 22FX User Guide
STEREO INPUT CHANNELS ST2, 3 & FX
Effects Channel and ST4 input.
The FX (Effects) channel has one stereo input (ST4) on jack sockets which adds to the output of the built in
digital effects processor. This stereo input can be used with an external effects processor to return the effects
signal to the main mix.
The phono sockets carry the Alternate stereo output which comes from the selector switches and level control in the master section.
Stereo Input Channel ST2
The only difference from stereo input channel ST1 is the labelling of the additional stereo input on phono connectors, labelled as 2 Track Return. This is to indicate that a 2 track (stereo) input can be inserted here for
playback of a stereo recording or incidental music.
Stereo Input Channel ST3
Stereo input channel ST3 also has an additional stereo input, but instead of being on phono connectors, it
comes from the USB audio input. The level control, ON switch and routing switch are the same as for stereo
input channel ST1. It is best to leave the ON switch in its UP position when the USB input is not in use. The
phono sockets carry the analogue record output signals that are sourced from the main L R outputs. They are
pre-fade, post L R insert.
Stereo Input Channel ST1
This is stereo input channel ST1 as described on previous pages.
USB connector & output selection.
A standard USB type B connector plugs in here (cable supplied). The three selector switches determine what is
sent on the USB output. They work on a priority system, so that if more than one is pressed the one nearest
the top takes precedence. So if all 3 are pressed, then the Aux 1 & 2 signals would be sent by the USB device.
Please refer to the section describing using the USB audio port for more details.
OO 10
-30
-20
-5
0
5
-10
ST
RTN
To LR
To 7-8
OO 10
-30
-20
-5
0
5
-10
2TRK
RTN
OO 10
-30
-20
-5
0
5
-10
USB
RTN
+16
+3
+6
+9
ON
To LR
To 9-10
ON
To LR
To 11-12
ON
USB
AUX1-2
AUX3-FX
LR PRE
UP=LR post
SENDRETURN
ST2 IN
L/M
R
ST3 IN
L/M
R
L/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
ST RTN
L
R
2TRK RTN
L
R
REC OUT
L
R
ALT OUT
L
R
PHANTOM POWER
ST4 INST1 IN
L/M
R
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
+16
+3
+6
+9
F/SWITCH
FX MUTE
Allen & Heath 20 ZED-12FX, 16FX & 22FX User Guide
OO
30
MUTE
PK !
PFL
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
USB
AUX1-2
AUX3-FX
LR PRE
UP=LR post
SENDRETURN
L R
BAL
=
POST
PRE
LR
OO +6
OO +6
POWER
48V
PHONES
0
0
0
PHANTOM POWER
ALLEN
HEATH
OO
30
5
10
20
5
0
10
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
AUX1
AUX2
STEREO
F/SWITCH
FX MUTE
Bank 9-16
TAP
&
EFFECTS PROCESSOR
Effects Type Selection LED.
8 Green LED’s show one of 16 effects types available. If the Bank LED is off the
green LED’s will show one of 1 to 8 on the effects list (or off if no LED’s are
lit), if the Bank LED is on the green LED’s will show which of effects types 9 to
16 is selected. For effects types 1 to 5, the green LED will blink in time with
the tempo of the delay time.
The green LED’s also display the level of the parameter adjustment when the
TAP button is held down. The more LED’s that illuminate, the more the pa-
rameter is increased in value or intensity.
Bank LED.
The Bank LED illuminates when one of the effects type 9 to 16 is selected. If
the Bank LED is on, then the green LED will show which effect is selected from
the list.
SEL Buttons.
The SEL buttons select the type of effect. They also adjust the parameter of the selected
effect when the TAP button is held down.
TAP Button.
The TAP button is used in two ways. If one of effects types 1 to 5 are selected then the
TAP button can be used for adjusting the frequency or tempo of the delay parameter.
If the TAP button is held down, the SEL buttons then become parameter adjust buttons to
increase or decrease the level of the parameter assigned to the selected effect.
AUX 1 & 2 Send controls.
These controls send the effects processor output signal (and the external effects return on
ST4) to the Aux buses 1 & 2, either in mono or stereo depending on the under-panel selector switch (described on Page17).
These send controls are commonly used to add some reverb or effect onto the Aux 1 & 2
buses that may be used for stage monitoring or foldback.
The overall level from these send controls will be affected by the fader and the Mute
switch, so the effect can be quickly cut from the monitors if required (for announcements
etc).
Balance control.
The Balance control varies the relative levels between the left and right channels.
Mute Switch
Mutes the effect signals to the main L R and the Aux buses. The Footswitch jack socket
can also be used to mute the effects signal.
PFL Switch & PK! LED
The Pre-Fade Listen switch takes a mono sum of the stereo effects signals from before the
fader and mute switch. When pressed the signal will appear on the L R meters and be fed
to the headphones circuit for monitoring.
The PK! LED illuminates dimly to indicate the PFL switch is pressed, and brightly to indicate the effects signal is within 5dB of clipping
Fader
The 100mm fader affects the level of the effects signal to the left & right buses and Auxes
1 & 2. There is 10dB of gain at the top and the unity gain position is marked by “0”.
Allen & Heath 21 ZED-12FX, 16FX & 22FX User Guide
EFFECTS PROCESSOR
PARAMETER (HOLD)
TAP
SEL
168
5
6
7 15
14
13
2
3
4 12
11
10
1 9
Dly+verb (level)
Dly+verb (size)
Dly+verb (regen)
PingPong(regen)
BeatDly (regen)
Ambient (echo)
SlapVerb (size)
DoubleZED(size)
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
Bank 9-16
TAP
Effects Type List & Description.
There are 16 different effects presets in the ZED Effects Processor. Each is fed with
a mono signal from the FX bus, and the output from the effects processor is in stereo.
Each preset has a parameter adjust control which is matched to the preset. This
control may morph several parameters all at once, for example the parameter control for the Chorus effect will adjust not only the depth, but the response of the
filters in software to create a more or less intense effect. In general, when adjusting
the effect parameter, the more LED’s that are illuminated, the more intense the
effect or higher the parameter value.
To restore the parameter settings to the factory defaults, hold down both SEL buttons whilst switching on the power to your ZED.
Effect Preset Name Effect Description & Parameter adjustment.
1 Dly+verb(level)
Delay with Reverb. Delay feeds reverb (Classic Plate).
TAP for delay time Min = 70mS Max = 1.35S, Adjust the level of reverb.
2 Dly+verb(size)
Delay with Reverb. Delay feeds reverb (Classic Plate). TAP for delay time
Min = Min = 70mS Max = 1.35S, PARAMETER Adjusts the size of reverb.
3 Dly+verb(regen)
Delay with Reverb. Delay feeds reverb (Classic Plate). TAP for delay time
Min = 70mS Max = 1.35S, PARAMETER adjusts the regeneration of the delay.
4 PingPong(regen)
Ping Pong delay (left then right) in parallel with Plate reverb. TAP for left delay time
Min = 70mS Max = 1.35S, PARAMETER adjusts the delay regeneration.
5 BeatDly(regen)
As (4) but right delay is set for 1/4 beat of left. Good for off beat 4/4 delay sound. TAP
for left delay time & PARAMETER adjusts the delay regeneration.
6 Ambient(echo)
Echo Delay with Reverb. PARAMETER adjusts the echo time.
7 SlapVerb(size)
Reverb with echo reflections creating classic slapback reverb sound.
PARAMETER adjusts the slapback size (more slap echo).
8 DoubleZED(size)
Classic stereo doubler.
PARAMETER adjusts delay and size.
9 Plate(decay)
Classic plate reverb. PARAMETER adjusts decay time.
10 Plate(predly)
Plate reverb with pre-delay. Good for vocals/percussion.
PARAMETER adjusts pre-delay time (for increased intelligibility).
11 Plate(colour) Classic plate reverb. PARAMETER adjusts tonal texture from dark to bright.
12 Hall1(size) Smooth classic hall reverb. PARAMETER adjusts size of hall.
13 Hall2(size) Brighter hall reverb. PARAMETER adjusts size of hall.
14 Arena(size) Arena reverb. PARAMETER adjusts size of arena.
15 Flanger(dpth) Classic flanger effect. PARAMETER adjusts depth and tonality.
16 Chorus(dpth) Chorus effect. PARAMETER adjusts depth and tonality.
Effects Type Table with description.
Allen & Heath 22 ZED-12FX, 16FX & 22FX User Guide
MASTER SECTION
Aux output jack sockets
Standard 1/4” jack sockets for Aux 1 to 3 outputs (FX or Aux 4 is
the internal Effects bus and does not have an output socket. Impedance balanced, nominal level = 0dBu.
Mix L R Insert jack sockets
Standard 1/4” (6.25mm) Jack sockets for unbalanced insert send and
return signals. Wired Tip = send, Ring = return, Sleeve = Chassis.
Nominal level is 0dBu.
Main L R output xlr sockets
Main left & right outputs. Impedance balanced signals, pin1 = chassis,
pin2 = hot (+), pin3 = cold (-). Nominal level = 0dBu.
Mono output jack socket
A mono sum of the main left & right post-fade signals.
Headphones jack sockets
One 1/4” and one 3.5mm jack socket for stereo headphones. Wired
Tip = left, Ring = right, Sleeve = Chassis.
It is recommended that headphones with an impedance higher than
30ohms are used.
48v Phantom Power switch
Press this in to switch 48v Phantom Power to all the Mic input xlr
connectors, if any of the microphones attached require power. Dy-
namic microphones won’t mind being connected to a phantom
powered input, but care is needed to ensure that 48v is not
switched on if an xlr is used to input a signal from an electronic
circuit (ie. Another mixer or keyboard).
When switching 48v on or off, or plugging in connectors to
channels with 48v present, it is important (and normal
practise) to mute the channels. This will avoid loud clicks
and bangs potentially getting through to the amps & speakers with the possible effect of damaging the speakers, or
the audience’s hearing!
Left Right meters
12 segment LED meters, peak type response, the “0” position re-
flects 0dBu at the outputs. These display the signals from the monitor selector switches below, or the PFL (pre-fade listen) signals
from any selected channels, which overrides.
!
Footswitch connection
Standard 1/4” (6.25mm) Jack socket for use with a footswitch.
Wired so that a switch closure between Tip and Sleeve will activate
the effects mute circuitry to cut the effects return (and ST4) from
the main LR mix and the Aux 1 & 2 sends.
30
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
POST
PRE
LR
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
0
0
0
PHANTOM POWER
ALLEN
HEATH
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
168
14
13
11
10
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
F/SWITCH
FX MUTE
&
Allen & Heath 23 ZED-12FX, 16FX & 22FX User Guide
MASTER SECTION
Alternate output level control
The Alt (Alternate) Output is useful for connecting a pair of monitor speakers separate to the main outputs. The level control adjusts
the volume of the output from off to +6dB.
Headphone level control
Adjusts the level of the headphone signal.
Warning ! To avoid damage to your
hearing do not operate the headphones
or sound system at excessively high
volume. Continued exposure to high
volume sound can cause frequency
selective or wide range hearing loss.
!
Alternate output selector switches
These under-panel switches select the signal source for the Alt output. They select between the L R pre-fade, L R post-fade or the
monitor L R signals.
Aux 1 & 2 master level controls
For adjusting the level of the Aux 1 and 2 outputs. The range of
level control is from off to +6dB.
Master L R faders
High quality 100mm faders for the main L R outputs. 10dB gain at
the top, unity gain marked at “0”.
Monitor selector switches
These 4 switches select the signal source for the headphones monitor and the meters. They work on a priority basis. If they are all up
then the post-fade main L R signals will feed the monitor circuit, if
USB and 2 TRK are pressed, then only the 2 TRK signals will feed
the monitor circuit. The stereo option of pressing both AUX 1 and
AUX 2 together allows Aux 1 to feed the left and Aux 2 to feed the
right monitor circuit. This is useful if a stereo mix is set up using
Auxes 1 & 2.
OO
30
L
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
R
PFL ACTIVE
MIN MAX
PHONES
AUX1
AUX2
2TRK RTN
USB RTN
STEREO
OO +6
ALT
OUT
MONITOR
LR
OO +6
AUX1
MASTER
OO +6
AUX2
MASTER
5
20
10
5
0
10
POST
PRE
LR
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
0
0
0
PHANTOM POWER
ALLEN
HEATH
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
+16
-6
-9
-20
-30
-16
-12
-3
0
+3
+6
+9
168
14
13
11
10
Plate (decay)
Plate (predly)
Plate (colour)
Hall1 (size)
Hall2 (size)
Arena (size)
Flanger (dpth)
Chorus (dpth)
F/SWITCH
FX MUTE
&
Allen & Heath 24 ZED-12FX, 16FX & 22FX User Guide
+16
0
+3
+6
+9
USB
AUX1-2
AUX3-FX
LR PRE
UP=LR post
SENDRETURN
L/M
R
L
R
POWER
48V
INSERT R
AUX1 OUT
PHONES
MAIN OUT
ALT OUT
L
R
PHANTOM POWER
ST4 INST1 IN
AUX2 OUT
AUX3 OUT
INSERT L
MONO OUT
+16
0
+3
+6
+9
F/SWITCH
FX MUTE
USB CONNECTION
USB Audio Interface
The ZED is equipped with a stereo bi-directional USB 1.1 compliant audio CODEC. It is fully compliant with USB 2 ports
and uses standard Windows and MAC Core Audio Drivers. In other words, plug it in and your computer will find it and
be able to transfer audio to and from the ZED USB device.
You will need some form of audio software running on your computer to be able to record and play back what you record, but on a basic level, you can use your computers media player to play straight to the ZED device.
Just a couple of points to look out for:
Windows XP/Vista: When you plug in your ZED USB interface to your computer, if the volume level is low or
inaudible, check the device volume in control panel/Sounds and Audio Devices/Volume. Set the volume to High.
Windows 7: At present, Windows 7 treats the USB audio device as a microphone source instead if a line input, so
set the device volume level much lower, we found setting to 3 is ideal.
If you want to reduce latency (delay) there are some different drivers available for your operating system. Please check the
Allen & Heath website www.allen-heath.com for details and links to third party companies able to supply appropriate drivers for your operating system.
Allen & Heath 25 ZED-12FX, 16FX & 22FX User Guide
1. Connect your ZED mixer to your Mac via USB and power on the mixer.
2. With Pro Tools 9 installed, open Audio MIDI Setup on your Mac. PT9 should have created a Pro Tools Aggregate I/O folder in the Audio Devices list. The ZED interface should appear as USB Audio CODEC in the list
along with other audio devices in your system. Tick Use to enable the device in PT9. You may need to also
tick Resample in order for the audio data settings to be compatible with your PT9 session.
3. Run Pro Tools 9 and create a new session with
at least two audio tracks. Open the SETUP/
Playback Engine window and select Pro Tools
Aggregate I/O as the Current Engine. Click OK.
CONNECTING A ZED TO PRO TOOLS 9 ON A MAC
4. In PT9 click SETUP and then I/O. Select Output from
the menu and the devices available should appear in a box
labelled PTAI/O (Pro Tools Aggregate I/O). Here you can
create a new output path if one doesn’t exist, name it
(here it’s called ZED Stereo OUT) and tick it to enable.
The output path can be set as stereo or mono channels as
is required.
5. Still in I/O Setup, click the Input tab. Again the input
sources should appear for enabled devices in Pro Tools
Aggregate I/O. Create a new path for the inputs and name
as you prefer. Here we have a stereo input named ZEDStereo Input. Note that mono channels can use one channel of a stereo input path. Make sure the path is ticked
and click OK.
6. Select the inputs and outputs for your tracks in your
session. Here the input for mono Track 1 is selected as
the Left channel from the ZED USB interface. The track
outputs can either be routed to the ZED directly or to a
master bus in Pro Tools and then to the ZED.
7. Finally check the interface and settings are working by recording some audio from the ZED mixer to PT9 and
then play the audio back to the ZED afterwards. Always be wary of audio feedback loops with bi-directional interface connections which can cause high level audio feedback if signals are routed back to themselves either in the
mixer or in the software system.
Audio MIDI Setup...
If you use Pro Tools 9 and want to connect to your ZED console using a Mac computer,
here are some notes:
Allen & Heath 26 ZED-12FX, 16FX & 22FX User Guide
APPLICATION DRAWING: LIVE SETUP
CD
fx
KEY:
MICROPHONE SIGNAL
FROM DIRECT BOX
STEREO LINE LEVEL SIGNAL
EFFECTS RETURN (STEREO)
STAGE MONITOR SIGNALS
(LINE LEVEL)
EFFECTS SEND
(ADDITIONAL TO INTERNAL
EFFECTS)
USB CONNECTION
MAIN PA LINE LEVEL OUT
(LEFT, RIGHT & SUB)
MAIN PA L & R
FOLDBACK
MONITORS
SUB BASS
Allen & Heath 27 ZED-12FX, 16FX & 22FX User Guide
KT-88
MICROPHONE SIGNAL
STEREO LINE LEVEL SIGNALS
USB CONNECTION
CONTROL ROOM MONITORS
ARTISTS MONITOR
KEY:
CD
fx
EFFECTS RETURN (STEREO)
EFFECTS SEND
APPLICATION DRAWING: STUDIO SETUP
Allen & Heath 28 ZED-12FX, 16FX & 22FX User Guide
WIRING NOTES
GROUND
RETURN
SEND
RETURN
OUT
IN
SEND
INSERT
PROCESSOR
LINK RING TO SLEEVE TO UNBALANCE
T
R
S
T
R
S
T
R
S
Insert cable wiring
1=ground
2=hot (+)
3=cold (-)
BALANCED
XLR FEMALE
RCA phono jacks
XLR MALE
2=hot (+)
1=ground
3=cold (-)
RCA PHONO CABLE
Sleeve=ground
Ring=cold (-)
Tip=hot (+)
BALANCED
1=ground
2=hot (+)
3=cold (-)
2=hot (+)
1=ground
3=cold (-)
Sleeve=ground
Ring=cold (-)
Tip=hot (+)
BALANCED
BALANCED
BALANCED
XLR FEMALE
XLR MALE
BALANCED
UNBALANCED
Sleeve=ground
Ring=cold (-)
Tip=hot (+)
BALANCED
Sleeve=ground
Ring=cold (-)
Tip=hot (+)
BALANCED
UNBALANCED
adapter
UNBALANCED
INSTRUMENT CABLE
TRS JACK CABLE
MIC CABLE
TRS to XLR-F CABLE
TRS to XLR-M CABLE
TO
FROM
INPUT
OUTPUT
2 Outputs to 1 Input
Y-Adapter
No !
1 Output to 2 Inputs
Y-Adapter
Yes
General
Wiring
Information
NOTES
Allen & Heath 30 ZED-12FX, 16FX & 22FX User Guide
Allen & Heath 31 ZED-12FX, 16FX & 22FX User Guide
Allen & Heath 32 ZED-12FX, 16FX & 22FX User Guide
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