Behringer PRO MIXER DJX750 User manual

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A50-95630-08001
User Manual
PRO MIXER DJX750
Professional 5-Channel
DJ Mixer with
Advanced Digital
Eects and BPM Counter
Your purchase
of the BEHRINGER PRO MIXER DJX750 has put you at the
forefront of today’s trends in DJ mixing consoles. Numerous
features, such as beat counter, insert loop and digital effects pro-
cessor, enable you to work in completely new and creative ways.
The DJX750 is a mixer for professional use, it is extremely easy
to operate and it helps you give free rein to your creativity.
Time is tight and if you don’t want to be left in the dust, you’d
better get moving. To help you along, we have developed an
excellent DJ mixing console with the most popular new features
and technologies. It is perfectly suited for use in dance clubs or
for DJ systems and is sure to deliver tons of pure fun.
Be honest: who really likes to read manuals? We know you want
to get started right away, but it is only after reading these in-
structions that you will fully understand and be able to properly
use all the features your DJX750 has to offer.
Take the time to read everything through!
Table of Contents
Your purchase .............................................................. 1
Safety Instructions ...................................................... 2
Control elements ......................................................... 3
Stereo channels 1 to 4 ..........................................................................3
Microphone channel.............................................................................4
MONITOR section ...................................................................................4
MASTER section.......................................................................................4
Crossfader section..................................................................................4
XPQ 3D surround eect.......................................................................5
Auto BPM counter ..................................................................................5
Internal eects processor....................................................................5
Connections ................................................................. 6
Rear panel connectors .........................................................................6
Initial operation........................................................... 7
Shipment ...................................................................... 7
Online Registration ..................................................... 8
Specications............................................................... 8
Warranty....................................................................... 9
Federal Communications Commission
compliance information ........................................... 10

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PRO MIXER DJX750 User Manual
2
Caution
*
This symbol, wherever it appears, alerts you to the presence
of uninsulated dangerous voltage inside the enclosure -
voltage that may be sucient to constitute a risk of shock.
Caution
!
This symbol, wherever it appears, alerts you to important
operating and maintenance instructions in the accompany-
ing literature. Please read the manual.
Caution
!
To reduce the risk of electric shock, do not remove the top ◊
cover (or the rear section). No user serviceable parts inside.
Refer servicing to quali ed personnel.
To reduce the risk of  re or electric shock, do not expose ◊
this appliance to rain and moisture. The apparatus shall
not be exposed to dripping or splashing liquids and no
objects  lled with liquids, such as vases, shall be placed on
the apparatus.
These service instructions are for use by quali ed service ◊
personnel only. To reduce the risk of electric shock do not
perform any servicing other than that contained in the
operation instructions. Repairs have to be performed by
quali ed service personnel.
Caution
!
Read these instructions. {1}�
Keep these instructions. {2}�
Heed all warnings. {3}�
Follow all instructions. {4}�
Do not use this apparatus near water. {5}�
Clean only with dry cloth. {6}�
Do not block any ventilation openings. Install in accordance with the manu- {7}�
facturer’s instructions.
Do not install near any heat sources such as radiators, heat registers, stoves, {8}�
or other apparatus (including ampliers) that produce heat.
Do not defeat the safety purpose of the polarized or grounding-type plug. A {9}�
polarized 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. If the provided plug does not t into
your outlet, consult an electrician for replacement of the obsolete outlet.
Place the power cord so that it is protected from being walked on and sharp [10]�
edges. Be sure that the power cord is protected particularly at plugs, conve-
nience receptacles and the point where it exits from the apparatus.
The apparatus shall be connected to a MAINS socket outlet with a protective [11]�
earthing connection.
Where the MAINS plug or an appliance coupler is used as the disconnect [12]�
device, the disconnect device shall remain readily operable.
Only use attachments/accessories specied by the manufacturer. [13]�
Use only with the cart, stand, tripod, bracket, or table [14]�
specied by the manufacturer, or sold with the ap-
paratus. When a cart is used, use caution when moving
the cart/apparatus combination to avoid injury from
tip-over.
Unplug this apparatus during lightning storms or when unused for long [15]�
periods of time.
Refer all servicing to qualied service personnel. Servicing is required when [16]�
the apparatus has been damaged in any way, such as power supply cord or
plug is damaged, liquid has been spilled or objects have fallen into the appa-
ratus, the apparatus has been exposed to rain or moisture, does not operate
normally, or has been dropped.
Safety Instructions

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PRO MIXER DJX750 User Manual 3
Control elements
Stereo channels 1 to 4
Use the LINE/CD switch to select the input signal for channel 1. Unlike other channels, channel 1 features two line inputs. {1}
You determine the input signals for the channels 2 to 4 with the PHONO/CD i. e. PHONO/LINE switch (channels 3 and 4). {2}
“Phono” is intended for connecting a turntable. “Line” i. e. “CD” must be selected for all other signal sources (e. g. CD or MD
players). The input sensitivity of the phono input can be switched to line level, allowing utmost exibility (see [41] ).
Never connect devices with line level to the highly sensitive phono inputs! The output level of phono pick-up systems is ◊
measured in millivolts, whereas CD players and tape decks have levels measured in volts, i.e. the level from line signals
is up to 100 times higher than that of the phono inputs.

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PRO MIXER DJX750 User Manual
4
TheGAIN control in the CHANNEL section is used to {3}
adjust the level of the input signal. Thelevel meter {5}
reads the input level.
Each of the input channels features a 3-band equalizer (HI, {4}
MID and LOW)with kill characteristic. Thus, the signal
can be attenuated to a much greater extent (-32 dB) than
it can be raised (+12 dB). This function can be very useful
when, for example, fading a frequencyrange out of a music
track.
The overall level also depends on the EQ setting. Thus, ◊
you should adjust the equalizer before setting the
input gain with the GAIN control.
The 10-digit LED chains display the signal level of the {5}
input signals.
Adjust the channel volume using the CHANNEL fader. {6}
Microphone channel
TheMIC IN connector is the balanced XLR input for your {7}
dynamic microphone.
Set the volume of the microphone signal with the GAIN {8}
control in the MIC section.
There is a 3-band equalizer (HI, MID and LOW, nokill {9}
characteristic)in the microphone section. This allows you
to fine-tune your voice to adapt perfectly to your sound.
Activate the microphone channel using the MIC ON [10]
switch. The channel is active when the correspondingLED
is lit.
TheDJX750 is equipped with a talkover function, [11]
which works very simply: if you speak into the microphone
while a track is running, the volume of the music is auto-
maticallyreduced, so that your voiceis always “in front”.
TheTALK control allows you to determinehow much the
music volume is lowered (max. -24 dB). This function can
come in handy when your own voiceneeds to be prominent-
ly heard, as in when making an announcement etc.
MONITOR section
TheMONITORsignal is your headphones signal, allowing you
to listen to music without affecting the MASTER output signal.
When the MODEswitch is in the “Split” position, channel [12]
PFL is located on the left side of the headphones, while
the MASTER signal is on the right side. In this case,
the MIX control (see below) serves no function. While in
“Stereo” mode, you can use the MIX control to alternate
between MASTER signal and PFL.
When in “Stereo” mode, the MIX control lets you determine [13]
which signal can be heard via the headphones. When the
control is turned to its left-most position (CUE), you hear
the PFL signal only; when the control is turned to
its right-most position, you hear the MASTER signal only.
Alternating the MIX control between the two end positions
lets you dermine the relative ratio between the two signals
in your headphones.
TheLevel control determines the volume of the head- [14]
phones signal.
Connect you headphones using PHONES OUT stereo [15]
connector. Your headphones shouldhave a minimum
impedance of 32 Ohms.
To select the PFL signal for the headphones, use the [16]
MONITOR CUE keys (CH-1 to CH-4, MASTER, FX). You
can alsoselect multiple signal sources and listen to them
simultaneously. LEDs on correspondingkeys are litwhen a
channel is routed to the headphones.
MASTER section
TheLEVEL METER displays the level of the MASTER [17]
signal.
TheMASTER fader allows you to adjust the output volume [18]
at the MASTER output (see [44] ).
TheMASTER BALANCE control for the MASTER output [19]
is for setting the stereo image.
The BOOTHLEVEL control adjusts the output level of the [20]
BOOTH output (see [45] ).
Crossfader section
ASSIGN A and ASSIGN Bselectors let you determine [21]
which input signals are routed to CROSSFADER sides A
and B. You can also alternate between these two signals by
using the CROSSFADER (see below).
The VCA controlled CROSSFADER is used to fade between [22]
the channels you have selected (see [21] ). Like the channel
faders, the crossfader section is equipped with a profes-
sional 45-mm fader.
TheTIME OFFSET LED indicates the synchronisation of [23]
tracks (see chapter 2.7).
TheTEMPO DIFFERENCE LED displays tempo differ- [24]
ences between the tracks (see chapter 2.7).
A 3-band kill switch is available for usewith both the left [25]
and the right side of the crossfader (KILL A and KILL B
respectively). Kill switches are used to lower three separate
frequencyranges (LOW, MID and HIGH) up to -32 dB.
When using the kill switch, the equalizer of ordinary DJ
mixers usuallyloses its functionality. Not the case with
the DJX750: the EQs can be used to achieve an even more
pronounced lowering of a particular frequencyrange.
The CF CURVE control lets you alter the control character- [26]
istic of the crossfader between linear and logarithmic in an
infite number ofsteps. When set to linear, the crossfader

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PRO MIXER DJX750 User Manual 5
engages directly proportionally to the fader’s incremental
movement. When set to logarithmic, the fader’s movement
yields higher volume increases as the fader moves farther
along its range of motion.
XPQ 3D surround eect
The XPQ 3D surround function is a built-in effect that puts the
nishing touch to your music and turns every gig into a real
experience. The widening of the stereo base makes for a livelier,
more transparent sound. You can determine the intensity of the
effect by using the SURROUND control [27] , while the XPQ ON
switch [28] turns the XPQ effect on (the respective LED is lit).
Auto BPM counter
The integrated auto BPM counter is an extremely useful feature.
It ensures smooth transition from one track to the next, taking
a lot of the guesswork out. It can calculate the various tempos
of tracks in bpm (beats per minute). Both BPM counter sections
are identical and both show the BPM value of the two signals
routed to the crossfader. The LEDs located above the DISPLAYs
1 - 4 [29] indicate which of the four input channels are routed to
the respective BPM counter.
The tempo of the track assigned by using the ASSIGN A or AS-
SIGN B keys is shown in the respective Display [30] . Several
tempo changes in one track would produce a constant display
of various BPM values and thus lead to unnecessary confusion.
That’s why the beat counter sections each have a SYNC LOCK
button [31] that can be used during the song to limit the range
of possible tempo values. This makes sense if the counter has
already calculated a realistic value. You can do the same thing
manually with the BEAT ASSIST button [32] . Pushing this
button at least three times in sync with the song’s tempo results
in the calculated tempo appearing in the DISPLAY. The Beat
Assist and SYNC LOCK buttons are each equipped with a LED.
When you have limited the tempo of the tracks on both channels
with the SYNC LOCK or BEAT ASSIST buttons, the differ-
ence in tempo from both channels is illustrated in the form of
a nine-character message on the TEMPO DIFFERENCE-LED
[24] . The extent of the difference in tempo is indicated by a
corresponding swing to the right (signal A is slower) or to the
left (signal B is slower). When the middle LED lights up, the
tempi are the same. The TIME OFFSET LED [23] below that
displays the signal A and B synchronisation. Should the middle
LED light up, the tracks are synchronised. Should the display
move to the left or right, the channels are not synchronised. The
TEMPO DIFFERENCE and TIME OFFSET displays are only
active if the tempi of both channels have been xed in one of the
ways described.
When no signal is present (or when the signal level is too ◊
low), the BPM display shows only dashes. When the signal
is present but can not be identied, the display shows
160 BPM and then shows the said dashes. The beat counter
then attempts to get another readout. Therefore, “160” BPM
is no usable value; rather, it is simply an error message
when the signal can not be analyzed.
To exit the SYNC LOCK or BEAT ASSIST modes, simply push
the SYNC LOCK button once more on both channels.
Internal eects processor
Presets of the multi-eects processor
Grp No. Eect Type Adjustable
Parameter
1
0Filter Sweep LP Frequency
1Filter Sweep BP Frequency
2Filter Sweep HP Frequency
3Auto Filter
(Envelope) LP Sensitivity
4Auto Filter
(Envelope) BP Sensitivity
5Auto Filter
(Envelope) HP Sensitivity
6LFO Filter LP LFO Rate
7LFO Filter BP LFO Rate
8LFO Filter HP LFO Rate
2 0Bitcrusher -- Depth
3 0Flanger Gate/Pan LFO Rate
1Flanger Standard
(Full Res) LFO Rate
2Flanger Standard
(Half Res) LFO Rate
3Flanger Ultra LFO Rate
4 0Delay 1/1 Delay Time
(related to BPM)
1Delay 3/4 Delay Time
(related to BPM)
2Delay 1/2 Delay Time
(related to BPM)
5 0Echo 1/1 Delay Time
(related to BPM)
1Echo 3/4 Delay Time
(related to BPM)
2Echo 1/2 Delay Time
(related to BPM)
6 0Reverb Big Plate Reverb Time (Decay)
1Reverb Small Chamber Reverb Time (Decay)
2Reverb Bright Room Reverb Time (Decay)
3Reverb Voice Widener Tone
4Reverb/Delay Big Plate
+ Delay
Delay Time
(related to BPM)
7 0Phase Shifter 4LFO Rate
1Phase Shifter Fall LFO Rate
2Phase Shifter Rise LFO Rate
8 0Panning Panning LFO Rate
1Panning Tremolo LFO Rate
9 0Sim/Dyn Ultrabass Frequency
1Sim/Dyn Ultrafex Frequency
2Sim/Dyn Voice Changer Distortion