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Publication No: AP3435
L IMITED O NE Y EAR W ARRANTY
This product has been manufactured in the UK by ALLEN & HEATH and is warranted to be free from defects in materials or workmanship for period of one year from the date of purchase by the original owner.
To ensure a high level of performance and reliability for which this equipment has been designed and manufactured, read this User Guide before operating.
In the event of a failure, notify and return the defective unit to ALLEN &
HEATH or its authorised agent as soon as possible for repair under warranty subject to the following conditions
C ONDITIONS O F W ARRANTY
1. The equipment has been installed and operated in accordance with the instructions in this User Guide
2. 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.
3. Any necessary adjustment, alteration or repair has been carried out by
ALLEN & HEATH or its authorised agent.
4. The defective unit is to be returned carriage prepaid to ALLEN &
HEATH or its authorised agent with proof of purchase.
5. Units returned should be packed to avoid transit damage
These terms of warranty apply to UK sales. In other territories the terms may vary according to legal requirements. Check with your ALLEN &
HEATH agent for any additional warranty which may apply.
WZ 14:4:2 User Guide AP3190 Issue 2. Copyright © 1998 Allen & Heath. All rights reserved
M ANUFACTURED I N E NGLAND
ALLEN & HEATH
Kernick Industrial Estate
Penryn, Cornwall, TR10 9LU. UK http://www.allen-heath.com
A DIVISION OF HARMAN INTERNATIONAL INDUSTRIES Ltd
A LLEN & H EATH A GENT :
IMPORTANT SAFETY INSTRUCTIONS
PLEASE READ THESE INSTRUCTIONS
This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure that may be sufficient to constitute a risk of electric shock.
This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read the operating instructions.
CAUTI ON
ATTENTION: RISQUE DE CHOC ELECTRIQUE – NE PAS OUVRIR
WARNING: To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture.
All the safety and operating instructions should be read before the appliance is operated.
x
RETAIN INSTRUCTIONS: The safety and operating instructions should be retained for future reference.
x HEED WARNINGS: All warnings on the appliance and in the operating instructions should be adhered to.
x FOLLOW INSTRUCTIONS: All operation and user instructions should be followed.
x
WATER & MOISTURE: The appliance should not be used near water (e.g. in a bathroom, a kitchen, wet basement or near a swimming pool etc…) x VENTILATION: The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the appliance should not be placed on a bed, sofa, rug, or similar surface that may block the ventilation openings: or, placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through ventilation openings.
x HEAT: The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (e.g. amplifiers) that produce heat.
x
POWER SOURCES: The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.
x
GROUNDING OR POLARISATION: Precautions should be taken so that the grounding or polarisation means of the appliance plug is not defeated. A polarised plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
x
POWER CORD PROTECTION: Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs and the point where they exit from the appliance.
x ATTACHMENTS / ACCESSORIES: Only use attachments and /or accessories specified and approved by the manufacturer.
x
CLEANING: x NON-USE PERIODS:
The appliance should only be cleaned as recommended by the manufacturer.
The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time. Unplug the apparatus during lightning storms.
WZ14:4:2 U SER G UIDE 3
4 x
OBJECT & LIQUID ENTRY: Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.
x DAMAGE REQUIRING SERVICE: The appliance should be serviced by qualified service personnel when: the power supply cord or the plug has been damaged: or objects have fallen, or liquid has been spilled into the appliance: or the appliance has been exposed to rain; or the appliance does not appear to operate normally or exhibits a marked change in performance; or the appliance has been dropped, or the enclosure damaged.
x SERVICING: The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel.
x
INSTALLATION: The appliance should only be installed and used in accordance with the manufacturers operating instructions. Use only with a cart, stand, tripod, bracket or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over .
Important Mains plug wiring instructions.
The appliance is supplied with a moulded mains plug fitted to the ac mains power lead. If the mains plug has to be replaced, follow the instructions below.
The wires in the mains lead are coloured in accordance with the following code:
TERMINAL
L
N
E
LIVE
NEUTRAL
EARTH GND
European
WIRE COLOUR
USA/Canada
BROWN
BLUE
GREEN & YELLOW
BLACK
WHITE
GREEN
As the colours of the wires in the mains lead may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: x 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.
x
The wire which is coloured Blue must be connected to the terminal in the plug which is marked with the letter N.
x
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 codings are followed carefully in the event of the plug being changed.
WARNING: THIS APPLIANCE MUST BE EARTHED
This product complies with the European Electromagnetic Compatibility directives 89/336/EEC &
92/31/EEC and the European Low Voltage directive 73/23/EEC & 93/68/EEC.
Allen & Heath warns that any changes or modifications to the appliance not approved or authorised by Allen &
Heath could void the compliance of the appliance and therefore the users authority to operate it.
Selecting the appropriate environment
Refer to the important safety instructions overleaf and in addition the following guidelines should be adhered to: x
The appliance must be situated near a suitably grounded (earthed) electrical outlet. Where possible, use a power filter/surge protector connected to the mains lead of the appliance or any other connected appliance.
x
Avoid electromagnetic, RF and magnetic fields such as those generated by TV/telecoms and radio antennae, amplifiers, speakers, TV/video monitors, air conditioning units, microwave ovens and large electric motors.
x Avoid conditions of extreme humidity.
x Avoid sources of shock and vibration.
WZ14:4:2 U SER G UIDE
I
NTRODUCTION
The WZ14:4:2 continues ALLEN & HEATH’s commitment to providing high quality audio mixing consoles engineered to meet the exacting requirements of today’s audio business. It brings you the latest in high performance technology and offers the reassurance of over two decades of console manufacture and customer support.
This user guide presents a quick reference to the function and application of the WZ14:4:2.
We recommend that you read this guide fully before starting. For your convenience, the manual contains information about applications, installing and connecting the console and its input and output sections. Front and rear panel drawings are included with a technical specification. A system block diagram is printed on the rear cover. For further information on the basic principles of audio system engineering, please refer to one of the specialist publications available from bookshops and audio equipment dealers.
Whilst we believe the information in this guide to be reliable we do not assume responsibility for inaccuracies. We also reserve the right to make changes in the interest of further product development.
S ERVICE A ND T ECHNICAL S UPPORT
We are able to offer further product support through our world-wide network of approved dealers and service agents. You can also access our Web site on the internet for information on our product range, assistance with your technical queries or simply to chat about matters audio... To help us provide the most efficient service please keep a record of the console serial number, and date and place of purchase to be quoted in any communication regarding this product.
SAFETY WARNING!
Mains electricity is dangerous and can kill. Mains voltage is present within the console.
Do not remove the covers with mains electricity connected. To ensure your safety, mains earth is connected to the chassis through the power lead. Do not remove this mains earth connection.
To avoid the risk of fire, replace the mains fuse only with the correct value and type as indicated on the connector panel.
G ENERAL P RECAUTIONS
Your WZ14:4:2 is ruggedly constructed to withstand the rigours of the road whether location mixing or live gigging. However, you will extend the life of the console and preserve its cosmetics by applying these simple common sense precautions.
Prevent damage to the controls and cosmetics by avoiding drinks spillage, tobacco ash, smoke, 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.
Protect from excessive dirt, dust, heat and vibration when operating and storing.
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.
T RANSPORTING T HE C ONSOLE
The console may be transported as a free-standing unit or mounted in a rack or flightcase.
Ensure that the connector pod is secured in place with the locking screws fitted to prevent movement. Use adequate packing if you need to ship the unit.
WZ14:4:2 U SER G UIDE 5
6
O
VERVIEW OF THE
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##
The WZ14:4:2 combines uncompromised features with impressive performance for live sound engineering and recording. Built on the established tradition of innovative British design and manufacture, WZ14:4:2 is solidly reliable for a hard life on the road and uniquely versatile for any audio mixing application. The WZ14:4:2 is equally at home alongside top of the range live sound consoles such as the ALLEN & HEATH GL4000, in use in theatres, houses of worship, conference and club installations, home and recording studios, or multitasking with equipment hire companies. Check out the key features:
The Mix Wizard QCC (Quick Change Connector) system lets you quickly rotate the connectors for rear access desk top operation, or for underside access as required when mounted in a compact 10U 19” rack space.
MSP (Minimum signal path) for transparent audio is achieved by careful circuit design using high grade, low noise discrete and IC components aimed at providing the shortest signal path from input to output.
The 10 mic/line input channels each feature a 4 band EQ with 2 mid-sweep controls for source correction or enhancement equalisation, a 100Hz lo-cut filter, an EQ IN switch and individual phantom power switching on the rear panel for inputs channels, and a global on/off switch on the front panel. In addition, 6 auxiliary sends with up to 6dB of boost may be switched Pre/Post fader in groups 1-4 and 5-6. The input pre-amplifier provides a wide 70dB gain range for soft and loud signal sources. Cable matching is no longer a problem as each input offers both professional XLR and metal TRS jack sockets for any signal level, mic or line. A smooth action 100mm long travel fader with PAN control, ON switch and LED, Pre
Fade Listen (PFL) switch, L-R, & groups 1-2, 3-4 routing switches and PEAK (PFL) LED indicator complete the input channel. INSERTS for effects patching and DIRECT OUTPUTS for multitrack recording are also provided on the rear panel.
The 2 full facility stereo input channels feature dual inputs, A (RCA phonos) and B (jacks) each with individual gain control and on/off switching. A 4 band EQ with HF and LF shelving together with two fixed frequency peak/dip mid controls MF1 and MF2 providing 15dB of cut or boost.
A further 4 stereo returns ST1-4 each with feeds for AUX and L-R routing bring the total number of input connections up to 26.
The Master section includes 100mm GROUP and L-R master faders each with AFL, balanced XLR connectors on all outputs and INSERTS for signal processing. The MONO output is on balanced XLR with mode switching for either LR sum (mono) output or
PFL/AFL for an engineer’s listen wedge speaker. The groups also feature individual PAN controls with L-R and ON switches.
Above the groups, the AUX SEND master level controls provide an extra 10dB boost and
AFL switches for monitoring. The GROUP/AUX reverse switch bank is located below the aux master section. Mode switching enables the user to reverse the aux outputs with the group outputs to configure the console for either FOH operation or on stage monitoring or both.
This provides aux masters on balanced XLRs with inserts and fader control. The groups are redirected to the Aux master level controls and are on balanced TRS jacks. Individual mode switching for each Aux/Group is available permitting a wide variety of applications. Refer to the MODE SWITCHING section on page 16.
A useful oscillator allows a tone or pink noise signal to be sent to key outputs for system checking/alignment. Refer to Page 18 for details.
A headphone socket with level control is provided together with two 12 segment bargraph level meters for L & R signal monitoring.
2-Track recording and playback is set with the individual send and return level controls with routing for replay to the L-R mix. An XLR socket is provided for the talkback mic with a trim control for talkback to aux 1-2, 3-4, 5-6 in pairs.
A rugged all metal construction features all-metal jack sockets combined with individual circuit boards secured to the front panel via all rotary controls. No-nonsense solid build ensures on-the road reliability.
WZ14:4:2 U SER G UIDE
F
RONT
P
ANEL
L
AYOUT
GAIN
30
PAD
- 10 20
HF
12kHz
PAD
-30dB
40
30
50
GAIN
60 30
PAD
- 10 20
0
100Hz
HF
12kHz
PAD
-30dB
40
50
60 30
0
100Hz
GAIN
0
-5
-10
GAIN
0
-5
-10
5
10
20
15
ON
5
10
20
15
ON
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz HF
12kHz
0
MONO
45
60
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz
-15
MF1
0
+ 15
-15
MF2
0
+ 15
GAIN
0
-5
-10
GAIN
0
-5
-10
5
10
20
15
ON
5
10
20
15
ON
HF
12kHz
0
MONO
MF1
-15
MF2
-15
0
0
+ 15
+ 15
LF
60Hz
-15
0
+ 15
POWER ON MIC
IN
1kHz OSC
PINK NOISE
OSC/NOISE
TRIM
GROUP
TALKBACK
TRIM
AUX
4
3
2
SEND
1
0
5
6
7
10
9
8
2-TRACK
3
2
1
4
0
5
6
7
8
1 0
9
RETURN
L-R
REPLAY
AUX
1
L-R
PRESS TO TALK
!
1kHz OSC/PINK NOISE
ON
:= 47=7=5.
+ 16
+ 9
+ 6
+ 3
0
-3
-6
-9
-12
-16
-20
-30
MONITOR
0
AUX
2
+ 6
0
L-R
OO
0
AUX
3
+ 6
0
L-R
OO
0
AUX
4
+ 6
0
L-R
+ 6
0
0
PFL/AFL
+ 10
PFL
OO + 10
PFL
OO + 10
PFL
OO + 10
PFL
STEREO
RETURNS
LEV
3
2
1
4
0
5
6
7
1 0
9
8
L-R
2TRK
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
AUX
1
AUX
2
AUX
3
AUX
4
AUX
5
AUX
6
-15
PAN
+ 15
EQ
IN
-15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
+ 15
EQ
IN
+ 6
0
+ 6
0
+ 6
0
+ 6
POST
PRE
0
+ 6
0
+ 6
POST
PRE
0
AUX
1
-15 + 15
EQ
IN
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
OO
0
+ 6
POST
PRE
AUX
5
+ 6
0
AUX
6
0
+ 6
POST
PRE
BAL
L
ODD
PFL
PEAK
!
10
L-R
5
1-2
EVEN
R
ON
PFL
L-R
1-2
L
ODD
PEAK
10
!
5
R
EVEN
ON
0 0
3-4 3-4
L
ODD EVEN
R
ON
PFL
PEAK
!
10
L-R
5
1-2
0
3-4
AUX
1
-15 + 15
EQ
IN
+ 6
0
AUX
2
OO
+ 6
0
AUX
3
OO
+ 6
0
AUX
4
OO
0
+ 6
POST
PRE
AUX
5
+ 6
0
AUX
6
OO
OO
0
+ 6
POST
PRE
BAL
L
ODD EVEN
R
ON
PFL
PEAK
!
10
L-R
5
1-2
0
3-4
AUX
1
PAN
0
AUX
2 0
1
PEAK
+ 6
0
SIG
OO + 10
AFL
REV
2
PEAK
+ 6
0
SIG
+ 10
AFL
REV
3
PEAK
+ 6
0
SIG
+ 10
AFL
REV
4
PEAK
+ 6
0
SIG
+ 10
AFL
REV
L
5
PEAK
+ 6
0
SIG
+ 10
AFL
REV
+ 10
AFL
REV
AUX
SENDS
R
6
PEAK
+ 6
0
SIG
GRP/AUX
REVERSE
OPERATING MODE
FRONT-OF-HOUSE
STAGE MONITOR
L-R
PAN
L
ON
1
AFL
R L
ON
2
AFL
R L
ON
3
AFL
R L
ON
4
AFL
R
10
5
0
L-R
0
AUX
3
10
5
0
PAN
L-R
0
AUX
4
10
5
0
PAN
L-R
0
AUX
5
10
5
0
0
AUX
6
LR SUM
MONO
AFL/PFL
LISTEN WEDGE
M
ON
L
5
AFL
MONO
OUTPUT
0
OO + 10
ON
R
6
AFL
10
5
0
10
5
0
5 5 5 5 5 5
10 10 10 10 10 10
10 10 10 10
20
30
20
30
DUAL
STEREO
20
30
20
30
DUAL
STEREO
OO
20
30
20
30
OO
20
30
OO
20 20 20
30
OO
30
5
OO
30
OO
6
MAIN
OUTPUTS
WZ14:4:2 U SER G UIDE 7
8
R
EAR
P
ANEL
L
AYOUT
L
2-TRACK
RETURN SEND
L
R
STEREO
RETURNS
1
R
M
OUT
L / MONO
2
R
3
R
4
R
R
L / MONO
L / MONO
L / MONO
Made in the UK by ALLEN & HEATH
INSERT
L
A5
OUT
OUTPUTS
INSERT
3
A3
OUT
INSERT
1
A1
OUT
IN
A
L
STEREO INPUTS
13-14 11-12
IN
A
L
R
IN
B
L / M
R
IN
B
L / M
10
INSERT
IN
10
9
INSERT
IN
9
8
INSERT
INSERT
R
A6
OUT
INSERT
4
A4
OUT
INSERT
2
A2
OUT
R
AUX 6
L
AUX 5
G4
AUX 4
G3
AUX 3
OUTPUT SYS-LINK
OPTION
A DIVISION OF HARMAN INTERNATIONAL INDUSTRIES Ltd.
R R
DIR
OUT
10
DIR
OUT
9
G2
AUX 2
INPUT
G1
AUX 1
GRP/AUX
REVERSE
AUX
SENDS
BALANCED
M3x12MM
MIC 10
+ 48V
MIC 9
+ 48V
XLR OUT
1
3
2
+ OUT
- OUT
LINE
IN/OUT
IMPEDANCE BALANCED
SEND
INSERT
RETURN
2 1
INPUT
3
+ IN
- IN
DIR
OUT
8
0L[:L]DUG
:= 47=7=5
SERIAL No:
IN
8
MIC 8
+ 48V
7
INSERT
IN
7
DIR
OUT
7
MIC 7
+ 48V
6
MIC/LINE INPUTS
5
INSERT INSERT
IN
6
DIR
OUT
6
MIC 6
+ 48V
IN
5
DIR
OUT
5
MIC 5
+ 48V
4
INSERT
IN
4
DIR
OUT
4
MIC 4
+ 48V
3
INSERT
IN
3
DIR
OUT
3
MIC 3
+ 48V
2
INSERT
IN
2
DIR
OUT
2
1
INSERT
IN
1
DIR
OUT
1
MIC 2
+ 48V
PHANTOM POWER
MIC 1
+ 48V
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK
DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
WARNING - THIS APPARATUS MUST BE EARTHED.
CAU TION
AC MAINS IN ~
SUPPLY VOLTAGE RANGE:
100 - 240V ~
47-63Hz ~ 30W MAX
OFF ON
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.
FUSE
100 - 240V~ T500mA 250V 20mm
WARNING: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE
REPLACE FUSE WITH SAME TYPE AND RATING
ATTENTION: REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES.
REFER TO USER GUIDE BEFORE CONNECTING SUPPLY
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
S
PECIFICATIONS
0 dBu = 0.775 Volts rms 0 dBV = 1 Volt rms
HEADROOM: .............................................+21dB channels
.............................................................+23dB mix to output
MAX OUTPUT:
METERS:
Balanced ....... +25dBu 2kohm max load
Unbalanced ... +21dBu 2kohm max load
L, R................ peak reading 12 bar LED
PEAK LEDs: ............................ Turn on 5dB before clipping
FREQUENCY RESPONSE:.............20Hz to 50kHz +0/-1dB
DISTORTION: THD+Noise at +14dBu 1kHz
Channel to mix output .............................................. 0.006%
WEIGHT: unpacked 11kg, packed 14kg
CROSSTALK: Referred to driven channel at 1kHz
Channel fader off ...................................................... <-90dB
Channel off ............................................................... <-90dB
NOISE: Measured rms 22Hz to 22kHz bandwidth
Mic input EIN (150 ohm source) ............................. <-128dB
LR output residual noise......................<-97dBu (101dBS/N)
LR faders unity mix noise ...................<-87dBu (-91dB S/N)
POWER SUPPLY: internal, linear regulated
AC Mains input: ..................... IEC socket with lead supplied
................................................. 100 to 240V AC @ 50/60Hz
............................................factory wired to country voltage
Power consumption: ............................................. 35W max
Mains Fuse rating: ................. 100-120V AC T630mA 20mm
.............................................. 220-240V AC T315mA 20mm
C ONNECTIONS
INPUTS:
Channel 1-10 in ........... XLR ............................. pin 2 hot, 3 cold, bal ................. PAD out........... 2k ohm variable -60 to -20dBu
.................................... TRS jack...................... tip hot, ring cold, bal ................. PAD in............. >10k ohm variable -30 to +10dBu
Stereo 11/12-13/14 in .. TRS jack (L/M,R)......... tip sig, ring gnd, unbal .............. >10k ohm ........ -20 to +10dBu
.................................... RCA PHONO............... unbalanced .............................. >10k ohm ........ -20 to +10dBu
Stereo return................ TRS jack...................... tip sig, ring gnd, unbalanced .... >10k ohm ........ -10dBV minimum
2-Track return .............. RCA PHONO............... unbalanced .............................. >10k ohm ........ variable -10dBV min imum
Talkback mic in............ XLR ............................. pin 2 hot, 1 cold, unbalanced ... 2k ohm ............ variable -40 to -15dBu
INSERTS:
Channel 1-10 Insert ..... TRS jack...................... tip send, ring return, unbal........ <75 ohm, >3k ohm 0dBu
L-R mix/groups ............ TRS jack...................... tip send, ring return, unbal........ <75 ohm, >7k ohm -2dBu
OUTPUTS:
L,R/Groups out ............ XLR ............................. pin 2 hot, 3 cold, balanced ....................<75 ohm......... +4dBu
Mono out...................... XLR ............................. pin 2 hot, 3 cold, balanced ....................<75 ohm......... +4dBu
Aux 1-6 out ................. TRS jack...................... tip hot, ring cold, balanced ....................<75 ohm......... +4dBu
2-Track send................ RCA PHONO............... unbalanced ...........................................<75 ohm......... variable -10dBV minimum
Phones out .................. TRS jack...................... tip left, ring right ....................................for stereo headphones 30 to 600 ohms
Channel direct out........ TRS jack...................... tip hot, ring cold, impedance balanced ..<75 ohm.......... 0dBu
WZ14:4:2 U SER G UIDE
I
NSTALLING THE
C
ONSOLE
The Mix Wizard Series features the ALLEN & HEATH Quick Change Connector (QCC) system. The rear connector pod may be hinged and locked into either of two positions: Rear connectors for desktop operation with the control panel sloped at a convenient 15 degrees, or underside connectors for 19" rack mounting in a compact 10U space. The connector position can be easily changed at any time to fit your application.
To change the position remove the crosshead locking screw on each side, swing the connector pod into position, and refit the two screws
19” R ACK M OUNTING
D ESKTOP O PERATION
WZ14:4:2 U SER G UIDE
PRECAUTION :
Do not transport or carry the console with the locking screws removed.
Do not attempt to remove the connector pod from the console.
Mount the console in the rack using 4x M6 bolts each side for maximum strength.
We recommend you fit the bolts with plastic cup washers to protect the panel, and they look good...
These should be available from the supplier of the rack unit or a good hardware store.
F LIGHTCASING
The console can be easily flightcased in either connector mode. Provide the dimensions shown here to your flightcase supplier.
The console is fitted with rubber feet to ensure it does not slip or scratch the work surface. The control panel is angled at 15 degrees for operating convenience.
9
C
ONNECTING
M
AINS
P
OWER
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK
DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
WARNING - THIS APPARATUS MUST BE EARTHED.
CAU TI ON
AC MAINS IN ~
SUPPLY VOLTAGE RANGE:
100 - 240V ~
47-63Hz ~ 30W MAX
OFF ON
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.
FUSE
100 - 240V~ T500mA 250V 20mm
WARNING: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE
REPLACE FUSE WITH SAME TYPE AND RATING
ATTENTION: REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES.
REFER TO USER GUIDE BEFORE CONNECTING SUPPLY
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Refer to the SAFETY WARNING on page 5 of this
Guide. Check that the correct mains lead with moulded plug has been supplied with your console. Read and understand the warnings and instructions printed on the rear panel and reproduced here. The power supply accommodates mains voltages within the range 100-
240V without changing any fuses or settings.
It is standard practice to turn connected power amplifiers down or off before switching the console on or off. Ensure that the IEC mains plug is pressed fully into the rear panel socket before switching on.
E ARTHING
The connection to earth (ground) in an audio system is important for two reasons:
1. SAFETY - To protect the operator from high voltage shock associated with the AC mains supply feeding the system, and
2. AUDIO PERFORMANCE QUALITY - To minimise the effect of earth (ground) loops which result in audible hum and buzz, and to shield the audio signals from interference.
For safety it is important that all equipment earths are connected to mains earth so that exposed metal parts are prevented from carrying high voltage which can injure or even kill the operator. It is recommended that the sound engineer check the continuity of the safety earth from all points in the system including microphone bodies, guitar strings, multicore cases, equipment panels ...
The same earth is also used to shield audio cables from external interference such as the hum fields associated with power transformers, lighting dimmer buzz, and computer radiation. Problems arise when the signal sees more than one path to mains earth. An
‘earth loop’ (ground loop) results causing current to flow between the different earth paths.
This condition is usually detected as a mains frequency audible hum or buzz.
To ensure safe and trouble-free operation we recommend the following: x
Do not remove the earth connection from the console mains plug. The console chassis is connected to mains earth through the power cable to ensure your safety. Audio
0V is connected to the console chassis internally. If problems are encountered with earth loops operate the audio ‘ground lift’ switches on connected equipment accordingly, or disconnect the cable screens at one end, usually at the destination. It is useful to carry ground lift cable adapters such as short XLR male to female leads with pin 1 disconnected.
x Avoid running audio cables next to mains, computer or lighting cables, or near thyristor dimmer and power supply units. If unavoidable, cross these at right angles.
x Use low impedance sources such as microphones rated at 200 ohms or less to reduce susceptibility to interference. The console outputs are designed to operate at very low impedance to minimise interference problems.
x Use balanced connections where possible as these provide further immunity by cancelling out interference that may be picked up on long cable runs. To connect an unbalanced source to a balanced console input, link the cold input (XLR pin 3 or jack ring) to 0V earth (XLR pin 1 or jack sleeve) at the console. To connect a balanced console output to an unbalanced destination, link the cold output to 0V earth at the console.
x
Use professional quality cables and connectors and check for correct wiring and reliable solder joints.
x
If you are not sure ... Have your system checked by a competent engineer, or contact your local Allen & Heath agent for advice.
10 WZ14:4:2 U SER G UIDE
P
LUGGING
U
P
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YSTEM
The Mix Wizard 14:4:2 uses professional grade 3-pin XLR, 1/4" TRS jack and RCA PHONO sockets. The applications diagrams on pages 19 to 21 illustrate typical equipment interconnections. To ensure best performance, we recommend that you use high quality audio cables and connectors, and take time to check for reliable and accurate cable assembly. It is well known that most audio system failures are due to faulty interconnecting leads.
C ONNECTOR P INOUTS
C ONNECTORS , C ABLES AND T HEORY
All input and output XLR connectors are 3-wire differentially balanced. These have 3 connector pins: pin 1 = ground (cable screen), pin 2 = signal +ve, pin 3 = signal -ve
All the master output jack connectors are 3-wire balanced. These have 3 connector pins: tip
= signal +ve, ring = signal -ve, sleeve = ground (cable screen).
Avoid reversing +ve and -ve on balanced connections as this will result in out of phase signals (reverse polarity) causing signal cancellation effects. This situation is particularly common in multi-microphone mixing.
For live work where long cables runs are required, balanced interconnections should be used. Short interconnections between more affordable 2-wire (signal, ground) unbalanced effects units or signal processors and mixing console may be utilised. Refer to the following diagram for unbalanced to balanced connections.
D EALING WITH G ROUND L OOPS , B UZZ AND I NTERFERENCE
For optimum performance all audio signals should be referenced to a solid, noise-free earth point, frequently referred to as the ‘star point’ or ‘clean earth’.
A ground loop is created when the signal has more than one path to ground (earth). Should you experience hum or buzz caused by ground loops, check first that each piece of equipment has its own separate path to ground. If so, operate ground lift switches on connected equipment in accordance with the instruction manuals. Alternatively disconnect the cable screen at the destination end.
To avoid interference pickup keep audio cables away from mains power units and cables, thyristor dimmer units or computer equipment. Where this cannot be avoided, cross the cables at right angles to minimise interference.
C ONNECTING C HANNEL I NPUTS
Both microphone and line sources such as keyboards, replay devices and effects processors can be plugged into either the jack or XLR input for convenience. Do not connect to both at the same time. The channel accepts a wide 70dB range of source levels. The balanced 3wire input provides the best immunity to interference pickup on long cable runs.
WZ14:4:2 U SER G UIDE 11
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(
CONT
’
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)
C ONNECTING C HANNEL I NPUTS ( CONT ’ D )
C ONNECTING TO C HANNEL I NSERTS
You do not need to plug anything into the channel insert socket for normal operation. You may, however wish to insert a signal processor such as a compressor/limiter or noise gate into the channel signal path to prevent excessive peaks or to cut down source noise. The insert lets you do this by breaking the signal path after the input pre-amp and before the EQ.
Use a Y-lead or suitable TRS jack lead to connect to the external processor. The insert operates at 0dBu line level. Adjust the processor input and output levels for optimum signal level.
C HANNEL D IRECT O UTPUTS
The channel direct output taps the signal off post-fader (pre-fader if the internal link option is changed) for connection to external processing or recording equipment. This is ideal for multitrack recording during a live performance. Here each channel can be recorded on a separate track for mixdown later. The output is impedance balanced on TRS jack. This means that you get the benefit of interference immunity when connecting to outboard equipment with balanced inputs. You can, of course, also connect to unbalanced equipment.
The signal operates at nominal 0dBu line level.
L-R M AIN O UTPUTS
These 3-wire balanced outputs on XLR connectors operate at a nominal +4dBu to drive professional equipment over long cable runs without interference pickup. Connect to an amplifier, of suitable power rating for the venue, to drive the PA loudspeakers. Or connect to a 2-track recorder for studio or location recording.
12 WZ14:4:2 U SER G UIDE
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(
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)
L-R M IX I NSERTS
Operation is identical to channel inserts. Use these sockets if you wish to insert external signal processing equipment into the mix pre-L-R fader. For live sound it is common to insert graphic equalisers to adjust for the room acoustics. Use a suitable Y-adapter lead as illustrated on page 12 : tip = send, ring = return.
G ROUPS
Groups 1-4 are output to 3-wire balanced XLR connectors to drive long cable runs. Inserts are provided as for the L-R outputs. Groups can be used to drive additional power amplifiers and speakers or for 4 track recording. If MODE SWITCHING aux/groups reverse is in operation, group faders are connected to the corresponding aux buss (Aux 1 to Group 1 fader, etc...). Refer to MODE SWITCHING section on page 16 for more information.
A UXILIARY S ENDS
Auxiliaries 1-6 can be used to set up one or more stage monitor mixes or effects sends.
Auxiliary outputs are on 1/4” TRS jacks.
Set up a pre-fade aux mix to send a stage monitor or cue mix to the performers. The aux outputs are 3-wire balanced for interference rejection when plugged into equipment with balanced inputs.
Set up a post-fade aux mix to send channel signals to an external effects device such as reverb or delay. Return the processed signal to the mix by plugging the device output into stereo returns 1-4, or into a stereo channel input. These inputs can operate balanced or unbalanced. For a mono return simply plug into the L input, leaving R unplugged. The setting of the channel aux send control combined with that of the fader position determines how much of the signal is sent to the aux master and subsequently to the effects unit.
If MODE SWITCHING aux/groups reverse is in operation, aux master level controls are connected to the corresponding group busses (Group 1 to Aux Master 1, etc...). Refer to
MODE SWITCHING section on page 16 for more information.
T WO T RACK R ECORD AND R EPLAY
Individual RCA phono sockets are provided for connecting a 2-Track stereo recorder such as a cassette or DAT machine. Connect the recorder input (REC) connections to the send sockets and the recorder output (PLAY) connectors to the return sockets.
The return can be switched to L-R mix for recording playback. The return can also be used for intermission replay from a CD player or similar playback device
WZ14:4:2 U SER G UIDE 13
LF
60Hz
-15
0
+ 15
-15 + 15
EQ
IN
AUX
1
+ 6
0
AUX
2
OO
+ 6
0
AUX
3
OO
+ 6
0
AUX
4
OO
OO
0
+ 6
POST
PRE
AUX
5
+ 6
0
AUX
6
OO
OO
0
+ 6
POST
PRE
PAN
L
ODD
PFL
PEAK
!
10
L-R
5
1-2
EVEN
R
ON
0
3-4
5
10
GAIN
30
PAD
- 10 20
PAD
-30dB
40
50
60 30
0
100Hz
HF
12kHz
1k
700
-15
3kHz
+ 15
5k
7k
500Hz
MF1
0
15kHz
-15
60
180Hz
+ 15
300
45 450
35Hz
MF2
0
1kHz
20
M
ONO
I
NPUT
C
HANNEL
PAD - Attenuates the input signal by 30dB. It affects both the XLR and jack inputs. Press this switch when the input signal is too high with the GAIN control backed off.
GAIN - Use this control with the PAD switch to adjust the channel input sensitivity to match the connected source (-60 to +10dBu) to the console operating level (0dBu). Press the PFL switch to check that the signal reads an average ‘0’ on the meters.
100Hz LO-CUT FILTER - Attenuates frequencies below 100Hz to reduce low frequency source noise such as microphone proximity popping, stage noise and transport rumble. It can also be used to clean up sounds which do not have much bass content, such as vocals and cymbals.
EQUALISER - This provides separate, simultaneous control of 4 frequency bands. Each band may boost or cut by up to +/- 15dB. The centre flat position is detented for quick resetting.
The HF and LF bands have a shelving response which means that all frequencies beyond the turning point frequency are affected, HF = 12kHz, LF = 60Hz. Use HF to add sparkle or to reduce source hiss. Use LF to add punch to the bass instruments. Used with the LO-
CUT filter you can tailor the low frequency response exactly as you require.
The two swept mid frequency bands have a peak/dip (bell shaped) response which means that the maximum boost or cut occurs at the selected (centre) frequency. The centre frequency can be swept over a wide range. MF1 = 500Hz to 15kHz, MF2 = 35Hz to
1kHz. Use the mids to add warmth or presence to the sound or to notch out problem resonances which can result in feedback.
EQ IN - Press to switch the EQ into the signal path.
AUXILIARY SENDS - You can set up to 6 separately balanced mixes using the aux send controls. Up to +6dB of additional boost is available.
Aux 1 - 4 and Aux 5 - 6 can be used as either MONITOR SENDS to the performers or as
EFFECTS SENDS to external signal processing equipment. The output can be monitored using the aux send master AFL system. MONITOR SENDS are normally set pre-fader
(PRE) and EFFECTS SENDS normally post-fader (POST). When set to POST, the amount of channel signal in the monitor mix is dependent on the channel fader level. Pre-fade aux sends are post-EQ, post-ON as standard (can be reconfigured pre-EQ or pre-ON by setting internal links).
PAN - Positions the channel signal within the stereo image, L (odd groups) and R (even groups). The centre position (mono image) is detented for quick resetting.
ON - This turns the channel signal on or off. Status is indicated by the LED.
PEAK - The red LED illuminates when the signal is within 5dB of clipping. Should this occur turn back the GAIN control to reduce the signal level. This LED also half illuminates when a PFL switch is pressed.
PFL - Press PFL (Pre Fade Listen) to listen to the pre-fade signal on headphones or local monitor without affecting the main outputs. The signal level is shown on the L and R bargraph meters.
L-R, 1-2, 3-4 ROUTING SWITCHES - These switches route the channel signal to L-R master and groups 1-2, 3-4. Use the pan control to route to individual groups, i.e. left to L,
1 or 3, or right to R, 2 or 4.
+48V PHANTOM POWER - This is switched individually for input on the rear panel.
Phantom power may be switched off altogether with global +48V switch located on the front panel near the headphone socket.
Channel fader - 100mm smooth action fader controls the overall channel level. All post fade aux send levels are dependent on the level of the channel fader.
30
O O
14 WZ14:4:2 U SER G UIDE
S
TEREO
I
NPUT CHANNEL
GAIN
0
-5
-10
5
10
15
20
ON
GAIN
0
-5
-10
5
10
20
15
ON
HF
12kHz
0
MONO
MF1
-15
0
+ 15
MF2
-15
0
+ 15
LF
60Hz
-15
0
+ 15
AUX
1
-15 + 15
EQ
IN
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
OO
0
+ 6
POST
PRE
AUX
5
+ 6
0
AUX
6
0
+ 6
POST
PRE
BAL
L
ODD EVEN
R
ON
PFL
PEAK
!
10
L-R
5
1-2
0
3-4
10
20
30
DUAL
STEREO
DUAL INPUTS A & B - The stereo input channel features a dual input on RCA
Phonos (A) and TRS jacks (B). This is ideal for fast switching between stereo sources without having to repatch the console or mixing two stereo sources together.
GAIN A - Use this control to adjust the channel input sensitivity to match the connected source (-20 to +10dBu) to the console operating level (0dBu) on the RCA
Phono connectors. Press PFL to check the signal reads an average of ‘0’ on the meters.
ON A - Selects stereo source A (RCA PHONOS)
GAIN B - Use this control to adjust the channel input sensitivity to match the connected source (-20 to +10dBu) to the console operating level (0dBu) on the TRS
Jack connectors. Press PFL to check the signal reads an average of ‘0’ on the meters.
ON B - Selects stereo source B (TRS JACKS). Press both A and B to mix both sources together.
MONO - Combines the left and right outputs to mono the source. May also be used to input a mono source to the stereo channel path.
EQUALISER - Shelving HF and LF and two fixed frequency peak/dip mid controls provide 15dB of boost or cut. The mid frequency controls provide optimum control over boomy or boxy sounds and to add bite or reduce harshness of keyboards, vocals, etc. Use the mids to add warmth or presence to the sound.
EQ IN - Press to switch the EQ into the signal path.
AUXILIARY SENDS - You can set up to 6 separately balanced mixes using the aux send controls. Up to +6dB of boost is available.
Aux 1-4 and Aux 5-6 can be used as either MONITOR SENDS to the performers or as EFFECTS SENDS to external signal processing equipment. The output can be listened to using the aux master AFL system. MONITOR SENDS are normally set pre-fader (PRE) and EFFECTS SENDS normally post-fader (POST). When set to
POST, the amount of channel signal in the monitor mix is dependent on the channel fader level. Pre-fade aux sends are post-EQ, post-ON as standard (can be reconfigured pre-EQ or pre-ON by setting internal links).
The Left and Right stereo signals are summed to provide aux feeds in mono. However internal link options allow for pre or post aux sends as stereo pairs i.e. AUX 1 = left,
AUX 2 = right, etc. Refer to the options section in this user guide.
BAL - Balances the channel signal within the stereo image, L (odd groups) and R
(even groups). The centre position is detented for quick resetting.
ON - This turns the channel signal on or off. A LED indicates status.
PEAK - The red LED illuminates when the signal is within 5dB of clipping. Should this occur turn back the GAIN control to reduce the signal level. This LED also half illuminates when a PFL switch is pressed.
PFL - Press PFL to listen to the pre-fade signal (mono) on headphones or local monitor without affecting the main outputs. The signal level is shown on the L and R bargraph meters.
L-R, 1-2, 3-4 ROUTING SWITCHES - These switches route the channel signal to L-R master, groups 1-2, 3-4. Use the BAL control to route to individual groups or to adjust the balance between the left and right signals.
Channel fader - 100mm smooth action fader controls the overall channel level. All post fade aux send levels are dependent on the level of the channel fader.
WZ14:4:2 U SER G UIDE 15
G
ROUP
/A
UX
O
UTPUT
AUX
1 0
OO + 10
AFL
REV
1
PEAK
+ 6
0
SIG
L-R
PAN
L R
ON
1
AFL
10
5
0
5
10
20
30
O O
G ROUPS
Group outputs are controlled by 100mm travel faders which offer a further 10dB boost above the normal ‘0’ dB operating level. ON switches the group output on or off.
AFL (After Fade Listen) routes the post fader signal to the console meters and headphone monitoring to allow checks for sound quality and mix level. The AFL signal is sourced before the ON switch allowing the signal to be checked even when the group is switched off.
Each group has a 4 segment LED peak reading meter providing signal presence indication and peak warning which illuminates approximately 5dB before clipping.
S UB G ROUPING
Sometimes it is necessary to control more than one channel simultaneously, in the case of a drum kit or a group of backing vocalists for example. Route the relevant channels to groups instead of L-R, using the channel group routing switches and the pan controls. The PAN control positions the signal in the stereo image with the L-R switch routing the group output to the Left & Right masters. Ensure the group L-R switch is “in” to route the group output to the L-R masters. In this way, the level of several channels can be controlled by one group fader. It is possible to set up mono or stereo subgroups using the channel and group PAN controls.
A UX M ASTERS
Each aux mix has a master level control that adjusts the output level to match external equipment, or to trim the monitor or effects level without affecting the mix balance. Up to +10dB of boost is available above the nominal ‘0’ position.
M ODE S WITCHING
The Mix Wizard 14:4:2 features a bank of group GROUP/AUX REVERSE (REV) switches, one for each aux bus located under aux send masters 1-6. These switches are recessed to avoid accidental operation. Set using a pointed object or a pen tip.
This feature allows you to set the operation of the console for Front Of House, Stage monitor or a combination of both. With the switches out, the groups operate in the conventional manner, channel routing being possible with the group routing switches.
When the REV switches are pressed in, the group busses are routed to the AUX
send masters and the aux busses are routed to the GROUPS (Aux 1 to Group 1, etc). Aux 5 & 6 are routed to L-R faders respectively. This configuration allows the user to control up to six monitor mixes with the convenience of controlling levels on faders. Outputs are on balanced XLRs for long cable runs and a signal processor
(equaliser, compressor, limiter, etc.) can be inserted into the signal path using the group and left/right insert jacks.
The channel L-R and group busses are still operational but are now routed to aux master controls and can be used for additional monitor or effect sends.
It is advisable to study the Mix Wizard 14:4:2 block diagram to fully understand this flexible routing arrangement.
An example of an application using a combined configuration could be as follows :
Route submix channels 1-6 (drum kit) to groups 1 & 2. GROUPS 1 & 2 panned left
& right respectively and routed to L-R. AUX 3-4 set prefade (PRE) and aux send masters reversed with groups 3-4 for stage monitor sends. Other channels routed to
L-R mix as normal. Aux 5-6 set post fader (POST)for effect sends. This shows the versatility of the Mix Wizard 14:4:2. See DUAL MODE application diagram on page 21.
16 WZ14:4:2 U SER G UIDE
POWER ON
4
3
2
SEND
1
0
5
6
7
10
9
8
2-TRACK
3
2
1
4
0
5
6
7
8
1 0
9
RETURN
L-R
REPLAY
+ 16
+ 9
+ 6
+ 3
0
-3
-6
-9
-12
-16
-20
-30
MONITOR
PFL/AFL
LEV
2
3
1
4
0
5
6
1 0
7
9
8
L-R
2TRK
AUX
5 0
AUX
6 0
L
5
PEAK
+ 6
0
SIG
+ 10
AFL
REV
+ 10
AFL
REV
AUX
SENDS
R
6
PEAK
+ 6
0
SIG
GRP/AUX
REVERSE
OPERATING MODE
FRONT-OF-HOUSE
STAGE MONITOR
LR SUM
MONO
AFL/PFL
LISTEN WEDGE
M
ON
L
5
AFL
MONO
OUTPUT
0
OO + 10
ON
R
6
AFL
M
ASTER
& M
ONITOR
10
5
0
5
10
20 20
30
5
OO
30
OO
6
MAIN
OUTPUTS
10
5
0
5
10
M AIN L-R O UTPUTS
L-R FADERS - Individual 100mm faders adjust the main L-R mix level with
+10dB boost available above the nominal ‘0’ position. For best performance the faders should be operated around the ‘0’ position for normal ‘loud’ level.
If you find yourself operating significantly below ‘0’ then the amplifier or recorder input is too sensitive for the console +4dBu output. Simply turn down the amplifier or recorder level trim. If none is available then insert an attenuator pad between the console and connected equipment.
M ONO O UTPUT
MONO - Sums L+R mix to produce a mono signal. Output is on a balanced
XLR for long cable runs. A MODE SWITCH allows the signal to be switched from the mono sum to AFL/PFL. This switch is recessed to avoid accidental operation. Use a pointed object or pen tip to operate.
When switched to L-R MONO SUM, the MONO output provides for a centre fill or sub-bass loudspeaker, mono recording or broadcast feed. When switched to AFL/PFL, you can feed a stage monitor engineer’s listen wedge.
S TEREO R ETURNS
Four stereo returns ST1 - 4 are provided giving you a total of 26 inputs to the L-R mix. These are normally used for returning the processed signal from effects devices. They can also be used for additional submix inputs.
The AUX control feeds the summed left and right signal to the corresponding aux bus. This is ideal for returning effects to the monitors without using up valuable channel inputs. The L-R level control feeds the stereo signal to the
L-R mix.
P HONES M ONITOR AND B ARGRAPH M ETERS
Use stereo headphones with a nominal impedance of 30 to 600 ohms.
Adjust the LEV control for a comfortable listening level. The phones and the
12 segment bargraph normally meter the post fade L-R mix or the two track return depending on the position of the L-R/2TRK switch. Pressing any
AFL/PFL button on the console will override the monitor with the selected
AFL/PFL signal. A large red LED located below the meters indicates when a
PFL/AFL switch has been pressed when illuminated.
T ALKBACK
An XLR Talkback mic socket is provided on the front panel for connecting a standard low impedance dynamic microphone. Talkback buttons 1-2, 3-4, 5-
6 send the talkback signal to the corresponding aux busses. Press and hold these buttons for talkback. The TALK TRIM controls the talkback mic input level.
T WO T RACK S END AND R ETURN
The two track send and return controls are provided for a stereo recorder such as a cassette or DAT machine. The SEND may be used for recording the performance in stereo or to drive an induction loop hearing aid system.
The send outputs are post L-R fader as standard. Press L-R REPLAY to route the replay signal to the L-R mix. Separate send and return level controls adjust the signal to the required level and sensitivity. The console can work with both high (+4dBu) and low (-10dBV) level equipment.
WZ14:4:2 U SER G UIDE 17
S
ETTING UP THE SYSTEM
The WZ14:4:2 Master Section oscillator section provides for two modes of operation:
TONE Mode – A pure 1kHz tone, used for setting up input levels on external devices, such as recording equipment, FX processors and so on.
Pink Noise Mode – A ‘pink noise’ signal, which is the standard signal-type used by acousticians for setting up speaker systems, checking for faults in phase, drivers, crossovers etc.
OSC/NOISE
TRIM
Oscillator Features:
1kHz OSC
PINK NOISE
1kHz/Pink Noise Selector – Selects between the two signal types outlined above. Under-panel mode switch prevents accidental alteration of selection.
GROUP
Osc/Noise Trim – Allows oscillator level adjustment from –20dBu to +20dBu.
Routing assignments – Routes the oscillator to the group/LR mix busses.
1kHz OSC/PINK NOISE
ON
ON – Switches the oscillator on and off. LED indicates status. Under-panel switch prevents accidental triggering of the oscillator during performances.
!
WARNING! – The oscillator facility on the WZ14:4:2 is a powerful tool for audio system checking and setup. However, the operator should ensure that the ON switch is turned ‘off’ during performances in order to avoid interruption of the show and possible speaker damage by accidental pressing of the routing switches.
18 WZ14:4:2 U SER G UIDE
F
RONT
O
F
H
OUSE
Live bands, Theatre, Church, Disco, Club, etc...
MONO
2 1
L
4
5 FOL D BA C K p re -fade aux send s
M O N O L R gro ups
6
3
R
T WO TR A CK R EC ORD ER play record
EFF ECTS PR O C ESSOR insert
EFF EC TS return s
Pos t-fade r aux send s
G RA PH IC EQUA LISERS
G raph ic e qu alisers are used to com pensate for adverse room a coustics. Th ese d evice s help re duce aco ustic fe ed ba ck and e nh an ce the clarity of the sou nd .
T his e xa m ple show s the 4 groups, L - R a nd M o no outp uts fee ding a 7 stack
F O H am plification system . T he gro up s p ro vide inde pe nd en t control of the a dd itional left and rig ht lo ud speake r sta cks o r m ay be u se d for zo ne fe ed s o r for subgrouping to the L -R m ix.
S elect a ux 1 -4 post fade to a ccess 4 e ffect processin g de vices. U se stereo retu rn s 1-4 to add the effe cts to L-R and m o no m ix. A lte rn atively, return the e ffects to th e ste reo channels w hich a llow s fad er con tro l an d EQ to be
A UX
P OS T a dd ed.
P RE
S elect a ux 5-6 p re-fader for foldb ack m o nitor sends.
T he channel an d o utput inserts m ay be u sed for outboard effects an d signal p r o c e s s i n g d e v i c e s s u c h a s c om p re ss ors, lim iters a n d g rap h ic e qu alise rs.
4
8 9
TW O TR A CK REC OR DING A ND INT ERM ISSION recordin g p rocess.
5 (9 5 (9 5 (9 5 (9 5(9 5(9
5
R E PLAY
U se the console tw o track send a nd re turn so ckets for connecting a cassette or D AT recorde r. A lterna tively, connect a C D player to th e co nsole tw o track re turn sockets for interm issio n replay. This do es no t a ffect th e
Th ese sw itch es are recessed t o a v o i d a c c i d e n t a l op era tion. Set usin g a pen tip or po inted ob je ct.
S e t th e A U X R E V E R S E sw itche s to the up position fo r c o n v e n t i o n a l a u x / g r o u p op era tion
Set the LR SU M M O NO sw itch to up for m on o out
(L+ R su m )
WZ14:4:2 U SER G UIDE 19
S
TAGE
M
ONITOR
On stage mixing system for local (side of stage) control of performers monitor loudspeakers (wedges) with dedicated output for monitor engineer’s listen wedge.
20
1
2
STAGE MONITORS
3 4
5
6 mic splitter
AMPLIFIERS to FOH console inserts
SIGNAL PROCESSOR
ENGINEER'S WEDGE MONITOR
Set up the WEDGE MIX by selecting one or a combination of the groups/L-R AFL switches to listen to the desired monitor outputs.
These are post insert and therefore post graphic EQ and post fader for accurate monitoring.
Pressing any PFL or AFL switch allows channel set up and signal checking.
GRAPHIC EQUALISERS
Graphic equalisers plugged into the console inserts are an invaluable aid to reducing on-stage acoustic feedback and enhancing the clarity of the monitors. Using AFL allows the stage engineer to check the operation of the equalisers in the listen wedge monitor. It is best to use the same type of loudspeaker for the engineer's monitor as those used on stage.
This example shows the 6 aux sends routed through the main groups and L-R outputs to provide 6 independent stage monitor mixes with metering, ON/OFF switches, inserts and balanced XLR connectors.
The AUX/GROUP reverse switches reroute the group and L-R mix to the aux jacks outputs for additional monitoring or effect sends or as independent submix facilities.
For example, aux 5 and 6 jack outputs may provide a seperate stereo mix output from the channel L-R routing switches and the additional 4 stereo return line inputs.
AUX
PRE
PRE
Use the groups to add effects such as delay, reverb or echo to the stage monitors.
9 10
9 10 1 1 1 4 1
5 6
58îëåëåí
S T
1
ST
2
S T
3
S T
4
REV REV REV REV REV REV
R
These recessed to avoid accidental operation. Set using a pen tip or pointed object.
Set the AUX REVERSE switch to the down position (below panel) to route the aux mix through the groups and L-R XLR outputs for stage monitor level control with fader.
Set LR SUM MONO switch to down (below panel) for engineer's listen wedge following
PFL/AFL.
switches are
WZ14:4:2 U SER G UIDE
D
UAL
M
ODE
Left , Centre and Right Front of house system with 4 dedicated stage monitor sends
LEFT RIGHT
MONO
3
1
STAGE MONITOR
STAGE MONITOR
MONO L R groups 1-4
2
4
EFFECTS stereo returns 1-2
SIGNAL PROCESSOR aux 5-6 inserts
COMPRESSORS/LIMITERS
These are often used to prevent excessive peaks overloading the amplification system, for example in club installations subject to sound level control.
9 10
This example shows the console configured to control a Left, Right and
Centre Front of House system with 4 full feature stage monitor mixes.
Stage monitor sends aux 1-4 are set pre-fade so that the signal level is not affected by the fader position and the
FOH mix.
Aux 5-6 are set post-fade to access two effects devices whose outputs are added to the L-R mix via stereo returns
1 and 2.
Alternatively, these may be connected to the stereo channels.
AUX
PRE
POST
The channel and output inserts may be used for outboard effects and signal processors such as compressors, limiters and graphic equalisers.
5 6
58îëåëåí
S T
1
ST
2
S T
3
S T
4
REV REV REV REV REV REV
9 10 1 2 1 3 4 1 2 4 R
GRAPHIC EQUALISERS
Graphic equalisers plugged into the console inserts are an invaluable aid to reducing on-stage acoustic feedback and enhancing the clarity of the monitors.
aux 1-4
L - R
These switches are recessed to avoid accidental operation. Set using a pen tip or pointed object.
Set the AUX REVERSE switch to the down position
(below panel) to route aux mixes 1-4 through groups
1-4.
Set L-R switch in the up position for conventional operation.
Set LR SUM MONO switch to up for mono out (L+R sum).
WZ14:4:2 U SER G UIDE 21
C
UE
S
HEET
–
Copy and use this sheet to record mixer settings
0L[:L]DUG
30
GAIN
PAD
- 10 20
PAD
-30dB
40
30
GAIN
50
60 30
PAD
- 10 20
PAD
-30dB
40
30
50
GAIN
60 30
PAD
- 10 20
HF
12kHz
0
100Hz
HF
12kHz
0
100Hz
HF
12kHz
0
PAD
-30dB
40
30
GAIN
50
60 30
PAD
- 10 20
100Hz
HF
12kHz
0
PAD
-30dB
40
30
50
GAIN
PAD
60 30 - 10 20
100Hz
HF
12kHz
0
PAD
-30dB
40
30
GAIN
50
60 30
PAD
- 10 20
100Hz
HF
12kHz
0
PAD
-30dB
40
30
50
GAIN
PAD
60 30 - 10 20
PAD
-30dB
40
30
50
GAIN
PAD
60 30 - 10 20
100Hz
HF
12kHz
0
100Hz
HF
12kHz
0
PAD
-30dB
40
30
50
GAIN
PAD
60 30 - 10 20
PAD
-30dB
40
30
GAIN
50
60 30
PAD
- 10 20
PAD
-30dB
40
50
60 30
100Hz
HF
12kHz
0
100Hz
HF
12kHz
0
100Hz
GAIN
-5
0
-10
GAIN
-5
0
-10
5
20
10
15
ON
5
10
20
15
ON
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
1k
700
-15
3kHz
+ 15
5k
7k
500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz 500Hz
MF1
0
15kHz HF
12kHz
0
MONO
60
45
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
60
45
-15
180Hz
+ 15
300
450
35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz 35Hz
MF2
0
1kHz
-15
MF1
0
+ 15
-15
MF2
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
LF
60Hz
-15
0
+ 15
1
5
6
-15
AUX
AUX
2
OO
AUX
3
OO
AUX
4
AUX
AUX
PAN
OO
OO
OO
OO
+ 15
EQ
IN
-15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
EQ
IN
+ 15 -15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
EQ
IN
+ 15 -15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
EQ
IN
+ 15 -15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
EQ
IN
+ 15 -15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
+ 15
EQ
IN
-15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
+ 15
EQ
IN
-15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
+ 15
EQ
IN
-15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
+ 15
EQ
IN
-15
0
AUX
1
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
+ 6
POST
PRE
0
AUX
5
+ 6
0
AUX
6
+ 6
POST
PRE
PAN
+ 15
EQ
IN
+ 6
0
+ 6
0
+ 6
0
0
+ 6
POST
PRE
+ 6
0
0
+ 6
POST
PRE
AUX
1
-15 + 15
EQ
IN
+ 6
0
AUX
2
+ 6
0
AUX
3
+ 6
0
AUX
4
OO
0
+ 6
POST
PRE
AUX
5
+ 6
0
AUX
6
0
+ 6
POST
PRE
BAL
L
ODD
PFL
PEAK
!
10
L-R
5
1-2
3-4
0
R
EVEN
ON
L
ODD
PFL
PEAK
!
10
1-2
3-4
5
0
R
EVEN
ON
PFL
1-2
3-4
L
ODD
L-R
PEAK
!
10
5
0
R
EVEN
ON
PFL
1-2
3-4
L
ODD
L-R
PEAK
!
10
5
0
R
EVEN
ON
PFL
PEAK
!
10
L-R
5
1-2
0
R
EVEN
ON
3-4
L
ODD
L
ODD
PFL
PEAK
!
10
L-R
5
1-2
3-4
0
R
EVEN
ON
L
ODD
PFL
PEAK
!
10
L-R
5
1-2
3-4
0
R
EVEN
ON
L
ODD
PFL
PEAK
!
10
L-R
5
1-2
3-4
0
R
EVEN
ON
L
ODD
PFL
PEAK
!
10
L-R
5
1-2
3-4
0
R
EVEN
ON
L
ODD
PFL
PEAK
!
10
L-R
5
1-2
3-4
0
R
EVEN
ON
5
R
EVEN
ON
PFL
PEAK
!
10
L-R
5
1-2
0
3-4
L
ODD
GAIN
-5
0
-10
5
10
20
15
ON
GAIN
-5
0
-10
5
10
20
15
ON
HF
12kHz
0
MONO
-15
MF1
0
+ 15
-15
MF2
0
+ 15
LF
60Hz
-15
0
+ 15
-15 + 15
EQ
IN
AUX
1
AUX
2
OO + 6
0
+ 6
0
AUX
3
OO
+ 6
0
AUX
4
OO
0
+ 6
POST
PRE
AUX
5
+ 6
0
AUX
6
OO
OO
0
+ 6
POST
PRE
BAL
R
EVEN
ON
PFL
PEAK
!
10
L-R
5
1-2
0
3-4
L
ODD
POWER ON
MIC
IN
1kHz OSC
PINK NOISE
OSC/NOISE
TRIM
AUX
1
L-R
PRESS TO TALK
!
1kHz OSC/PINK NOISE
ON
:= 47=7=5.
+ 6
GROUP
0
AUX
2
0
L-R
OO
TALKBACK
TRIM
+ 6
0
AUX
3
0
L-R
OO + 6
0
AUX
AUX
4
0
L-R
+ 10
PFL
OO + 10
PFL
OO + 10
PFL
OO
+ 6
0
0
4
2
3
SEND
1
0
5
6
10
9
7
8 2
3
1
4
0
2-TRACK
5
6
7
8
1 0
9
RETURN
L-R
REPLAY
-12
-16
-20
-30
-3
-6
-9
+ 16
+ 9
+ 6
+ 3
0
MONITOR
PFL/AFL
+ 10
PFL
STEREO
RETURNS
LEV
2
1
3
4
0
5
6
7
1 0
9
8
L-R
2TRK
AUX
1 0
AUX
2 0
AUX
3 0
AUX
4 0
AUX
5 0
AUX
6 0
1
PEAK
+ 6
0
SIG
OO + 10
AFL
REV
2
PEAK
+ 6
0
SIG
+ 10
AFL
REV
3
PEAK
+ 6
0
SIG
+ 10
AFL
REV
4
PEAK
+ 6
0
SIG
+ 10
AFL
REV
L
5
PEAK
+ 6
0
SIG
+ 10
AFL
REV
R
6
PEAK
+ 6
0
SIG
+ 10
AFL
REV
AUX
SENDS
GRP/AUX
REVERSE
PAN
L-R
PAN
L-R
PAN
L-R
PAN
L-R
L R
ON
1
AFL
L R
ON
2
AFL
L R
ON
3
AFL
L R
ON
4
AFL
10
5
0
10
5
0
10
5
0
10
5
0
LR SUM
MONO
AFL/PFL
LISTEN WEDGE
M
OO
MONO
OUTPUT
0
+ 10
ON
L
5
AFL
ON
R
6
AFL
10
5
0
10
5
0
5 5 5 5 5 5
10 10 10 10 10 10
10 10 10 10 10 10 10 10 10 10 10 10
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
DUAL
STEREO
20
30
20
30
DUAL
STEREO
OO
20
30
20
30
OO
20
30
OO
20 20 20
30
OO
30
5
OO
30
OO
6
MAIN
OUTPUTS
Notes:
22 WZ14:4:2 U SER G UIDE
O
PTIONS
The Mix Wizard Series WZ14:4:2 has a versatile architecture designed to satisfy your live sound and recording requirements without modification. The following internal options are offered to provide alternative settings for those applications which may demand them. These options require resoldering of circuit board links and should only be carried out by competent technical personnel. Further information is available from your service agent or the
WZ14:4:2 SERVICE MANUAL.
C HANNEL P RE -F ADE A UX S END O PTIONS
The Pre-fade aux sends are set post-EQ and post-ON as standard. However, link options on each mic/line channel 1-10 and stereo channels 11-12 and 13-14 circuit board assemblies allow pre-EQ and/or pre-ON if required.
S TEREO C HANNEL A UX S ENDS
The stereo input channels allow stereo input signals to feed the auxiliaries as stereo pairs. By removing a link the left input signal will feed AUX 1, 3, 5, and the right input signal will feed
AUX 2, 4, 6.
C HANNEL D IRECT O UTPUT S OURCE
The direct outputs are sourced post-fader as standard. A link option is available on each channel assembly to select a pre-fade source.
SYS-LINK
TM
O PTION
The SYS-LINK
TM
option is an internally fitted circuit board and wiring harness which can easily be installed by your service agent. The SYS-LINK
TM
option allows up to five ALLEN &
HEATH consoles to be electronically connected together via a 25 pin D type multiway interconnecting cable to provide more inputs to the mix.
RIAA O PTION
An RIAA PCB assembly plus earth post can be fitted to input A of each of the two stereo input channels to allow connection for a turntable. Contact your dealer or service agent.
WZ14:4:2 U SER G UIDE 23
0L[:L]DUG 47=7=5.
PHANTOM 48V
MIC/LINE INPUTS x10
INPUT
2= +
BALANCED
TIP= +
INSERT
0dBu
+ 48V
PAD
-30dBu
GAIN
DISABLE
+
-
LO-CUT
FILTER
-
TIP= SEND
RING= RETURN
4 BAND EQUALISER
HF
MF1
MF2
LF
EQ IN
PEAK
DIRECT OUT
0dBu
IMPEDANCE BALANCED
TIP= +
RING= PRE-FADE
POST-FADE
PFL
POST-EQ
PRE-EQ
FADER
ON
STEREO RETURNS x4
AUX
INPUT
L/MONO
L-R
1 TO A1
2 TO A2
3 TO A3
4 TO A4
AUX 1 2
POST-ON
PRE-ON
POST
PRE
3 4
R
PFL
5
PAN
L-R
1-2
3-4
6
POST
PRE
R
DUAL STEREO INPUTS x2
4 BAND EQUALISER
INPUT B
L/M
GAIN
MONO HF
ON
EQ IN
MF1
MF2
LF
L
R
INPUT A
GAIN
ON
RIAA OPTION
R
L
PEAK
PFL
FADER
ON
PAN
L-R
1-2
3-4
POST-EQ
PRE-EQ
POST-EQ
PRE-EQ
POST-ON
PRE-ON
POST-ON
PRE-ON
MONO
AUX 1 2 3
MONO
4
POST
PRE
5 6
POST
PRE
TALKBACK
TRIM
MIC IN
TALK TO AUX
1-2
3-4
5-6
AUX MIX
GRP MIX
L-R
1-2
3-4
GRP/AUX REV
SL
AUX
AFL
ON
LEVEL
TIP= +
1KHz OSC
PINK NOISE
AUX SEND
GROUPS 1-4
AUX 1-4
SYS-LINK CONNECTION
SL
METER
SL
INSERT
-2dBu
FADER AFL
ON
BAL
GROUP OUT
2 = +
+ 4dBu
PAN
L-R
AFL
L/AUX5 REV
SL
AUX
TIP= +
AUX5
SEND
AUX5 MIX
L METER
AFL
L MIX
SL
LEFT
INSERT
-2dBu ON
L FADER
PFL/AFL DC
PFL/AFL MIX
SL
SL
M
OUT
MONO SUM
OR
LISTEN WEDGE
+ 4dBu
2 = +
BAL
MODE
L
MONO
R
PFL/AFL
BAL
2 = +
LEFT OUT
L
PFL/AFL
+ 4dBu
LR/2-TRK
MONITOR
L R
MONITOR
PHONES
OUT
TIP = LEFT
RING = RIGHT
AFL
REPLAY
TO L-R
RETURN
LEV
L
R
RETURN
R/AUX6 REV
SL
AUX
TIP= +
AUX6
SEND
AUX6 MIX
SEND
LEV
2-TRACK
L
R
SEND
R METER
AFL
R MIX
SL
RIGHT
INSERT
-2dBu
R FADER
ON
BAL
2 = +
RIGHT OUT
R
+ 4dBu
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Table of contents
- 3 Safety Instructions
- 4 Mains Wiring
- 5 Introduction
- 6 Overview
- 7 Front Panel Layout
- 8 Rear Panel Layout
- 9 Installation
- 10 Connecting Mains Power
- 11 Audio Connections
- 14 Mono Input Channel
- 15 Stereo Input Channel
- 16 Group/Aux Output
- 17 Master & Monitor
- 18 Setting Up the System
- 19 Example Applications - Front Of House
- 20 Stag e Monitor
- 21 Example Applications - Dual Mode
- 22 Cue Sheet
- 23 Internal Options
- 24 Block Diagram