CITRONIC PREDATOR - Abra.co.uk

PREDATOR
OWNER'S MANUAL
DOCOWN9089/4

2
1: Introduction
Contents Page
1: Introduction 2
2: Specifications & Features 3
3: Illustration 8
4: Maintenance & Guarantee 13
5: Technical Audio Specification 14
6: Block Diagrams 15
CITRONIC
Established in Melksham Wiltshire, in 1972, the company occupies prestigious
purpose built factory headquarters and is one of the leading employers in the area.
The Company's award winning product range of professional audio equipment covers
mixers, amplifiers, signal processing and loudspeakers. Each unit is manufactured to
the highest possible standards, and all have an enviable reputation for reliability and
value for money - the noted hallmark of Citronic products.
Substantial investment has been made in high technology CAD systems,
manufacturing control and testing techniques. This sophisticated computerization,
coupled with an extensive research and development program, enables the company
to offer an exceptional degree of manufacturing excellence and quality assurance.
Citronic has always listened carefully to the customer, and places tremendous
emphasis on market research. This ensures that the exacting requirements of the
installer and operator are complemented, without compromise, throughout the entire
product range. This unique approach, coupled with a strong input from a highly
qualified engineering team, ensures that Citronic maintains its position as a
respected leader, in the industry's development.
Citronic has a distribution network throughout Europe, Asia and the Americas.
WARNING
In order to obtain the best service from the unit we STRONGLY recommend that you
read this manual before you apply any power.
The AC Power requirements for your mixer are detailed on the Serial number label
which can be found stuck to the bottom of the mixer. A full specification is also printed
on page 11 of this manual.

2: Specification & Features
The Predator Professional DJ Mixer
The Predator extends our DJ mixer line to cater for the latest remixing techniques
allowing the DJ to mix Hi’s, Mid’s and Lo’s from different sources. This style of
remixing is provided by the dual 3 way ‘Kill’ feature which will cut any or all of the 3
frequency bands from the music sources on each end of the crossfader.
The Predator also has a 3 band input equaliser on each end of the crossfade to
further trim the music signal going onto the mix. We have also added Citronics
unique ‘Punch‘ facility and Beatmix Dipless crossfade to provide a mixing experience
that is simply light years ahead.
The cueing facilities are extensive. In addition to our innovative ‘Cue Pan’ which
provides a variable stereo mix between the cued input and the mixer output we have
added Split Cue and Beatmix Cue. Split Cue puts the cued input on the left channel
and output on the right while Beatmix Cue places whatever is on the left side of the
crossfade into the left cue channel and what ever is on the right side into the right cue
channel.
There are 4 stereo line and 3 RIAA phono inputs arranged into 4 main music
channels, each with an individual input gain control. In addition, 2
balanced/unbalanced mic inputs are provided with 3 band Eq and auto override
system.
Signal Connections
Make all connections to turntable, CD etc. using good quality stereo phono or RCA
phone jack leads. The importancec of this is often overlooked and is the frequent
cause of complaints about poor performance and output quality.
Microphones
1) 1/4" Stereo Jack Inputs
Both microphone inputs offer either balanced or unbalanced connections:
Balanced Input Wiring: Tip: Positive (HOT)
Ring: Negative (COLD)
Sleeve: Ground (SHIELD)
Unbalanced Input Wiring: Tip: Positive (HOT)
Ring: Ground (SHIELD)
Sleeve: Ground (SHIELD)
Input Impedance: 2K Ohm
Input Sensitivity: -53dBm (1.73mV) to -20dBm (77mV)
2) Gain Controls
Each microphone has it’s own gain control allowing maximum microphone control
and will accommodate most microphones, both low and high impedance’s to 600
Ohms.
Gain Range: 20 - 50dB.
3) On Air Switches
Activates or de-activates the individual microphone inputs without the need to adjust
the GAIN controls.
3

4
2: Specifications & Features
Microphone Equaliser
Both microphone inputs share a common 3 band Eq stage, before being mixed on to
the main output channels after the PROGRAM INSERT POINTS but before the
output level controls.
4) EQ Control ‘Lo’
This control allows 12dB of cut or boost to the low frequencies. (see audio spec.
P.14)
5) EQ Control ‘Mid’
This control allows 12dB of cut or boost to the mid frequencies. (see audio spec. P14)
6) EQ Control ‘Hi’
This control allows 12dB of cut or boost to the high frequencies. (see audio spec.
P14)
Override Section
The Predator offers the facility to ‘Duck’ the main music program when the
microphone inputs are active, this can be achieved either manually or automatically.
7) Manual Override Switch
When pressed the ‘live’ music program will be attenuated by a pre-set level
determined by the ‘depth’ control (8), thus allowing any microphone signal to take
priority on the main output channels.
8) Depth Control
This control pre-sets the level of which the main music program will be attenuated in
either auto or manual mode.
Attenuation range: 0dB (OFF) to 30dB.
To disable the override facility, simply turn the control fully anticlockwise to OFF.
9) Sensitivity Control
This control pre-determines the threshold of microphone signal at which the main
music program will be ‘ducked’ in ‘auto override’ mode.
The higher the setting of this control the more sensitive the ‘ducking’ threshold
becomes.
NOTE: Changes in microphone gain or EQ will have effect on this threshold. To
disable auto override turn control to ‘0’ i.e. fully anticlockwise.
Whenever the manual or auto override functions are working, the ‘active’ led will
illuminate.

2: Specifications & Features
Music Channels 1-4
Four stereo line and 3 RIAA phono inputs are arranged into 4 main music channels.
These channels in turn are arranged thus:
Channels 1 and 2 are sent to the left side of the Citronic Beatmix Dipless Crossfader
and channels 3 and 4 to the right. Before the crossfader, each pair of channels share
a common path via a 3 band EQ, PUNCH and KILL switch circuits. The crossfade
output is then sent via the inserts to the final master level controls to the mix O/P @
+4 dBm balanced and unbalanced.
10) Input Sockets
Phono Input: RIAA Equalised Stereo Phono Sockets.
(CH2, 3&4) Input Impedance: 47K Ohm
Source Impedance: Typical Magnetic Cartridge
Sensitivity: 3.8mV RMS (-46dBm)
Line Input: Standard Stereo Phono Sockets.
(CH1,2,3 & 4) Input Impedance: Typically 10K Ohm
Source Impedance: 2K Ohm (MAX)
Sensitivity: 775mV RMS (0dBm)
11) Input Gain Controls
Each main input channel has a gain control offering -10 to +6dB gain range allowing
compensation for differing input levels.
12) Input Selection Buttons
Selects either PHONO or LINE on channels 2-4with the PHONO input being the
default position.
N.B. Channel 1 is a dedicated LINE only.
13) Channel Fader
60mm studio quality faders control each channel program level to EQ, kill buttons
and crossfader.
Beatmix Equaliser (Important - see users note P12)
Channels 1 -2 and 3-4each share a common 3 band equaliser.
14) EQ Control ‘Lo’
This control allows 12dB of cut or boost to the low frequencies. (see audio spec. P14)
15) EQ Control ‘Mid’
This control allows 12dB of cut or boost to the mid frequencies. (see audio spec.
P14)
16) EQ Control ‘Hi’
This control allows 12dB of cut or boost to the high frequencies. (see audio spec.
P14)
5

6
2: Specifications & Features
17) Kill Buttons
Allows individual frequency bands to be attenuated from main music program on
either side of the crossfader.
Lo Kill
Mid Kill
Hi Kill
Gain
(dB)
0
-6
-27
-24
Gain
(dB)
0
Gain
(dB)
0
-8
-20
10 400Hz 1K
100
250 4K 10K
1K 4K 10K
Freq
(Hz)
Freq
(Hz)
Freq
(Hz)
18) Removable Crossfader
Utilises Citronic standard beatmix dipless crossfade module which can be changed
easily and quickly. The crossfader has Channel 1 and 2 on it’s left hand side and
channels 3 and 4 on it’s right hand side. Please refer to the "changing a crossfader"
section (page 12).
19) Punch Buttons
Create such effects as transforming, and dub beat by transposing the program from
one side of the crossfader directly onto the other side.

2: Specifications & Features
20) Program Inserts
These phono send and return sockets allow the main music program from the
crossfader section of the mixer to be processed by an external effects unit, such as a
graphic equaliser prior to the main output level controls.
The insert return signal is mixed in before the microphones so the vocal content from
the mic circuits will not be affected.
Send Level = 0dBu (775mV rms)
Impedance =

8
3: Illustration
PREDATOR
2
3
MICROPHONE 1 2 INPUT
4
FRONT PANEL
9
Lo
ON AIR
1 2
MIC 1 MIC 2
33
dB
0 10 OFF 10
SENS
Active
DEPTH
AUTO OVERRIDE
5
Mid
7
GAIN GAIN
MANUAL
OVERRIDE
Hi
ON AIR
Lo
KILL
OPERATING
VOLTAGE
10
10
9
8
Hi
15
9
8 13
7
7
6
6
5
4
5
Mid
4 14
3
3
2
2
CUE 1
Lo
1
CUE
0
0
Mid
BALANCED OR
1 UNBALANCED
17
8
6
FUSE
250V : T315mA
125V : T500mA
50/60 Hz
32
LINE LINE PHONO PH
GAIN GAIN
Hi
BALANCED OUTPUT
+4dBu (1.23V rms)
B
12
EQ
CAUTION : DISCONNECT SUPPLY CORD BEF
23
16
19
A
18
11
30
25
PUNC
SAMPLER
OUT
0dBu
(775mV rms)
BEAT-MIX
A
B
2
UN O
+4
(1.23
ATTENTION : DÉBRANCHER AVANT D

S
H
ORE OPENING
BAL.
UT
22
PROGRAM
INSERT
L
dBu
V rms) RETURN SEND
'OUVRIR
3 4
ONO LINE PHONO
GAIN GAIN
10
10
13
9
8
15
Hi
9
8
7
7
6
6
5
4
Mid
14
5
4
3
3
2
2
CUE 1
Lo
1
CUE
0
0
5
11
16
R
19
12
EQ
34
Mid
Lo
KILL 17
4
LINE
DJ
Mixer
3
PHONO LINE LINE PHONO PHONO LINE LINE
L L L L
R R R R
20 10
Hi
25
LEVEL
CUE O/P
SPLIT CUE
26
21
1/2 3/4
BEATMIX CUE
OUTPUT
DESIGNED & MANUFACTURED IN THE U.K BY CITRONIC Ltd.
2
+5
+3
+1
0
27
-1
-3
-5
-7
-10
-20
L R
PAN
CUE O/P
LEVEL
24
PHONES
MIN. 32 �
1
Power
PREDATOR
31
28
29
CONNECTOR PANEL (see P11 for Positional Options)
35
9

10
2: Specification & Features
Monitoring Section
24) Monitor Pan Control
Varies the mix between the cued input and main AB output, ideal for accurate beat mixing. Full
left will give cued input, full right will give main output program.
25) Split Cue
Disables the CUE PAN CONTROL and gives a mono sum of cued I/P’s to the left and a mono
sum of the O/P mix to the right, channels of the headphones and led display.
26) Beatmix Cue
When engaged this mode will take priority over both SPLIT CUE and the PAN monitor control.
A mono mix of the signal on the left hand side of the crossfade (CH1 - 2) will be present on the
left hand headphone output and led ladder, whilst the right hand signal of the crossfade (CH3 -
4) will be on the right headphones output and led ladder.
27) Cue/Output Display
10 segment led ladder with PPM characteristics and peak hold facility on 0dB to + 5dB relative.
Indication Range = -20 to + 5dB.
28) Headphone Level Control
Sets desired level to headphones. Headphone program depends on the position of
the monitor pan control, split cue and Beatmix cue switches.
29) Headphone Socket ( Standard Stereo 1/4" Jack)
L/H Channel - Tip
R/H Channel - Ring
Ground - Sleeve
Minimum Load Impedance - 32 Ohms
Power Output - 260 mW
30) Sampler Output
The stereo cue bus signal is provided by standard unbalanced phono sockets. This
output allows the interface with an input of a external sampler. Live and pre-fade
samples can be obtained dependent on the position of the PAN slider, SPLIT CUE
and BEATMIX CUE switches.
Level = 0dBu (775mV rms)
Output Impedence =

2: Specification & Features
WARNING:- THIS MIXER MUST BE EARTHED FOR SAFETY AND GOOD
GROUNDING PRACTICES IN MIXING.
In the event of ground - loop problems in the audio system, DO NOT disconnect the
AC supply earth to any equipment before consulting equipment instruction manuals.
For example most power amplifiers have audio ground lift switches, or are designed
specifically to avoid ground - loop problems connected to ‘earthed’ mixers.
Ensure the mixer has a ‘clean’ AC supply from a wall socket that is not used for other
equipment that would lead to interference - such as lights, refrigerators etc.
The Predator is available in two AC supply standards:
200 - 240V AC - UK, EUROPE, KOREA & CHINA
100 - 120V AC - AMERICA & JAPAN
33) AC Supply Fuse
The AC supply to the mixer is protected by a fuse housed in a chassis mounted
holder, located on the rear panel.
200 - 240V - T315mA
100 - 120V - T500mA
To change fuse:
1) Disconnect AC supply lead.
2) Simply remove fuse using a flat blade screwdriver and replace with the
appropriate fuse.
34) Earth Stud
Star point earth for auxiliary equipment e.g. Turntables.
35) Re-positional Connector Panel
This panel containing input and output connectors can be re-positioned on the
underside of the mixer to ease the installation into a rack.
1) Disconnect mixer from the
supply.
2) Remove the BLANKING
PANEL from the underside
of the mixer.
(8 off pozi head screws)
3) Remove the CONNECTOR
PANEL (5 off pozi head
screws) and refit to the
underside of the mixer.
4) Replace the BLANKING
PANEL in to the space the
CONNECTOR PANEL was
removed from.
5) Reconnect the mixer to
supply.
OPERATING
VOLTAGE
OPERATING
VOLTAGE
FUSE
250V : T315mA
125V : T500mA
50/60 Hz
FUSE
250V : T315mA
125V : T500mA
50/60 Hz
CAUTION : DISCONNECT SUPPLY CORD BEFORE OPENING
4
3
2
1
BALANCED OUTPUT
SAMPLER UNBAL.
PROGRAM
+4dBu (1.23V rms)
OUT OUT
INSERT
PHONO LINE LINE PHONO PHONO LINE LINE
L
A L L L L
B
B
A
B R R R R
R
0dBu +4dBu
(775mV rms) (1.23V rms) RETURN SEND
ATTENTION : DÉBRANCHER AVANT D'OUVRIR
DESIGNED & MANUFACTURED IN THE U.K BY CITRONIC Ltd.
CAUTION : DISCONNECT SUPPLY CORD BEFORE OPENING
4
3
2
1
BALANCED OUTPUT
SAMPLER UNBAL.
PROGRAM
+4dBu (1.23V rms)
OUT OUT
INSERT
PHONO LINE LINE PHONO PHONO LINE LINE
L
A L L L L
A
B R R R R
R
0dBu +4dBu
(775mV rms)
(1.23V rms) RETURN SEND
ATTENTION : DÉBRANCHER AVANT D'OUVRIR
DESIGNED & MANUFACTURED IN THE U.K BY CITRONIC Ltd.
11

12
2: Specifications & Features
Changing a Crossfader
When the crossfader has worn out it is very easy to replace. The Predator has been
fitted with a quick access panel which can be changed in a matter of seconds, even
while the mixer is in use. Follow these simple steps:
Removeable Panel
1) Remove the crossfader panel using a Pozihead
screw driver.
2) Lift out the removeable panel illustrated.
3) Disconnect the crossfader assembly.
4) Refit the connector to the new crossfader.
5) Replace the panel and re-fit the screws.
Beatmix Equaliser and Beatmix Cue
PUNCH
BEAT-MIX
When applying BEATMIX EQAULISATION it is best to monitor it using the BEATMIX
CUE facility. Overload conditions can be avioded by this method and input gain can
be reduced; in line with the led meter setting.
NOTE: Channel 'Cue switches' monitor the individual inputs before the shared
Beatmix Equalisers, and will only allow input level and gain setting.

4: Maintenance & Guarantee
Maintenance
(a) Basic Maintenance: As with all high-quality Audio Equipment, the overall
performance is highly-dependant upon healthy connection leads. Therefore it is
essential that these are checked periodically for wear and tear and replaced as the
need arises.
(b) Liquids: It is vital that liquids are not spilt onto the Predator, as this can cause
costly damage to the electronics within.
Your Guarantee of Satisfaction
This product is guaranteed to the original purchaser against defects in material and
workmanship for one year from the date of initial purchase. Activate this guarantee at
the time of purchase by returning the Guarantee Card to the address below. Keep a
copy of your sales receipt for proof of guarantee status, should it be necessary.
The crossfader itself is a replaceable part and is only guaranteed against defective
workmanship. The slider selected for the crossfader function has been chosen for its
excellent mechanical properties. In a discotheque application the extensive use of
this facility means that the number of operations in a twelve month period can exceed
the manufactures electrical specification.
If a malfunction occurs, the dealer who supplied the unit will be happy to handle the
repair. When returning a unit, use the original factory carton - do not chance
inadequate packing materials. Simply tape a note to the unit describing the
malfunction.
If your unit is out of guarantee, we recommend that you return it to an authorised
Citronic dealer for repair or service. Experienced personnel, supported by specialist
testing equipment, will be able to find and correct the fault in the most efficient and
cost-effective way.
If you have need to contact us about the operation or servicing of your Predator
please write or telephone the address below:-
In the UK:
Citronic Limited
Technical Services Department
Halifax Road
Bowerhill
Melksham
Wiltshire SN12 6UB
Tel : 01225 705600 Int: +44 1225 705600
Fax: 01225 709639 Int: +44 1225 709639
13

14
5: Technical Audio Specification
Parameter Mic Phono Line
Sensitivity -53dBm 46dBm 0dBm
(1.73mV) (4mV) (775mV)
Input Impedance (Ohms) 2K 47K 50K
Source Z Ohm 150 Ohm 2K Ohm
Max Gain 20 - 53dB -10dB -+6dB
S/N Ratio * >74dB >72dB >87dB
Freq Response ** 40Hz to 27KHz RIAA 10Hz to 44 KHz
THD ***
Microphone Equalisation
0.015% < 0.005%
Lo = ± 10 dB @ 60Hz
Mid = ± 12dB @ 2KHz
Hi = ± 10dB @ 10 KHz
Music Channel Equalisation
Lo = ± 10dB @ 80 Hz
Mid = ± 12dB @ 600Hz
Hi
Kill Button Frequency Response
= ± 10dB @ 9 KHz
Lo = 1 KHz : 0dB
100Hz : -17dB
10Hz : -26dB
Mid = 100Hz : 0dB
250Hz-4KHz : -24dB
10KHz : 0dB
Hi = 100Hz : 0dB
2KHz : -2dB
10KHz : -15dB
Noise Floor Dimensions:
Main A/B Output: -100dBm Width: 483mm (19")
Mic Pre-amp T.E.I.N.:
(4U)
-127dBm Height: 177mm
Headphones
Depth: 85mm
Load: 32 Ohms MIN Weight: 5kg
Power: 265mW @ 32 Ohms Cut-out required:
Freq Response:** 20Hz to 30KHz. Width: 450mm
S/N:
Output
83dB. Height: 177mm
Main A/B Output: Balanced XLR : +4dBu (1.23V rms)
Unbalanced Phono: +4dBu (1.23V rms)
Sampler Output: Unbalanced Phono: 0dBu (775mV rms)
Note: * : Measured at +4dBm output 22Hz-22KHz Filtered
** : Measured at 1dB w.r.t. a OdB ref at Mixer Output
*** : Measured at mixer output, 30KHz Filtered

6: Block Diagram 1
MANUAL
OVERRIDE
ON AIR
+
3 BAND EQ
12dB CUT BOOST
_
MIC1
BAL/
UNBAL
GAIN
20-50dB
MIX
TO VCA
SHT 2
OVERRIDE
DEPTH
ON AIR
+
VOICE DETECTION
& RECTIFICATION
MIC2
BAL/
UNBAL
_
Lo Mid Hi
GAIN
20-50dB
MIC MIX
SHT 2
CH1 GAIN
-10 TO +6dB
CUE (SHT2)
LINE
1
1-2
BEATMIX
SHT2
KILL SWITCHES
3 BAND EQ
12dB CUT BOOST
1
INSERT
L
SHT 2
CH2 GAIN
-10 TO +6dB
MIX
CH1-2
PUNCH
CUE
0dB
LINE
0dB
RIAA
PHONO
2
INPUT
SELECT
Hi
Mid
Lo
2
Hi
Mid
Lo
CH3 GAIN
-10 TO +6dB
X-FADE
RIAA
CUE
PHONO
3
LINE
0dB
KILL SWITCHES
3 BAND EQ
12dB CUT BOOST
3
INPUT
SELECT
0dB
CH4 GAIN
-10 TO +6dB
CH3-4
PUNCH
0dB
INSERT
R
SHT 2
MIX
CUE
LINE
3-4
PHONO
4
BEATMIX
SHT2
RIAA
4
INPUT
SELECT
Hi
Mid
Lo
Hi
Mid
Lo
15

16
6: Block Diagram 2
PHONES
AMP
BEATMIX
1-2
SHEET 1
SAMPLER O/P
L
MIX
MIX
LEFT (A)
tip
1
2
3
4
CUE
SHEET 1
A
CUE
10 SEG DISPLAY WITH PEAK HOLD
SPLIT CUE BEATMIX CUE
PAN
MONITOR
RIGHT (B)
ring
B
O/P
SAMPLER O/P
R
MIX
MIX
O/P A
SHEET 1
O/P B
PHONES
AMP
BEATMIX
3-4
SHEET 1
PHONES
LEVEL
MIC OVERRIDE
FROM SHT1
MUTE
VCA
RETURN
L
'A' BALANCED O/P
+4dB
+4dB
MASTER A
O/P
MIC MIX
FROM SHT1
A
B
UNBAL
O/P
+4dB
RETURN
R
MASTER B
O/P
'B' BALANCED O/P
+4dB
MUTE
VCA
DOCOWN9089/4