Behringer DJX400 User`s manual

Version 1.0
August 2002
User’s Manual
All the safety and operation instructions should be read before
the device is operated.
Retain Instructions:
The safety and operating instructions should be retained for
future reference.
To reduce the risk of electric shock, do not remove
the cover (or back). No user serviceable parts
inside; refer servicing to qualified personnel.
To reduce the risk of fire or electric shock, do not
expose this device to rain and moisture.
This symbol, wherever it appears, alerts you to the
presence of uninsulated dangerous voltage inside
the enclosure—voltage that may be sufficient to
constitute a risk of shock.
This symbol, wherever it appears, alerts you to
important operating and maintenance instructions
in the accompanying literature. Please read the
Heed Warnings:
All warnings on the device and in the operating instructions
should be adhered to.
Follow instructions:
All operation and user instructions should be followed.
Water and Moisture:
The device should not be used near water (e.g. near a bathtub,
washbowl, kitchen sink, laundry tub, in a wet basement, near a
swimming pool etc.).
The device should be situated so that its location or position
does not interfere with its proper ventilation. For example, the
device should not be placed on a bed, sofa, rug, or similar surface
that may block the ventilation openings, or used in a built-in
installation, such as a bookcase or cabinet that may impede the
flow of air through the ventilation openings.
The device should be situated away from heat sources such
as radiators, heat registers, stoves, or other devices (including
amplifiers) that produce heat.
Power Source:
The device should only be connected to a power supply of the
type described in the operating instructions or on the device.
Grounding or Polarization:
This device must be grounded.
Power Cords:
Power cords should be routed so that they are not likely to be
walked on or pinched by items placed on or against them, paying
particular attention to cords and plugs, sockets, outlets and the
point at which they exit from the device.
The device should be cleaned only as recommended by the
Non-use Periods:
The power cord of the device should be unplugged from the
outlet when left unused for a long period of time.
Debris and Liquid Entry:
Debris and/or liquids should not be allowed to enter the
enclosure through openings.
Damage Requiring Service:
The device should be serviced by qualified service personnel
The power cord or the plug has been damaged; or
Debris or liquid has entered the device; or
The device has been exposed to rain; or
The device does not appear to operate normally or exhibits
a pronounced change in performance; or
The device has been dropped, or the enclosure damaged.
The user should not attempt to service the device beyond that
which is described in the operating instructions. All other
servicing should be referred to qualified service personnel.
Professional 2-channel DJ Mixer with BPM Counter
s Intelligent dual auto-BPM counter with time and beat sync display
s Super-smooth dual-rail “Ultraglide” faders with up to 500,000 life cycles
Awesome adjustable XPQ 3D surround effect
s Switchable crossfader curve control
s Two dual input stereo channels with gain and 3-band kill EQ (-32 dB)
s One microphone input with studio-grade ULN technology and 2-band EQ PFL function with split option
s Extremely precise assignable level meter with peak hold function
s Signal send (PFL) and return loop
s Gold-plated cinch sockets for excellent audio quality
s Super-rugged construction ensures long life, even under the most demanding conditions
s Manufactured under ISO9000 certified management system
Dear Customer,
Welcome to the team of
PRO MIXER users and
thank you very much for
expressing your confidence
in BEHRINGER products
by purchasing the
DX400. Writing this
foreword for you gives
me great pleasure,
because it represents
the culmination of many
months of hard work
engineering team to
achieve a very ambitious
goal: to design an excellent DJ mixer offering
remarkable functions
with the maximum in
flexibility and performance. The task of designing our new PRO MIXER certainly
meant a great deal of responsibility which we assumed by
focusing on you, the discerning user and DJ. Meeting your
expectations also meant a lot of work and effort. But it was fun,
too. Developing a product usually brings a lot of people together,
and what a great feeling it is when everybody who has
participated in such a project can be proud of what they’ve
It is our philosophy to share our enjoyment with you, because
you are the most important member of the BEHRINGER team.
With your highly competent suggestions for new products you’ve
made a significant contribution to shaping our company and making
it successful. In return, we guarantee you uncompromising quality
(manufactured under ISO9000 certified management system)
as well as excellent technical and audio properties at an extremely
reasonable price. All of this will enable you to give free rein to
your creativity without being hampered by budget constraints.
We are often asked how we manage to produce such highquality devices at such unbelievably low prices. The answer is
quite simple: it’s you, our customers! Many satisfied customers
mean large sales volumes enabling us to get better purchasing
terms for components, etc. So it’s only fair to pass this benefit on
to you, isn’t it? Because we know that your success is our
success too!
I would like to thank all of those who have made the
PRO MIXER possible. You have all made your own personal
contributions, from the developers to the many other employees
at this company, and to you, the BEHRINGER user.
My friends, it’s been worth the effort!
Thank you very much,
1. INTRODUCTION ......................................................... 4
1.1 Before you begin ........................................................... 4
2. CONTROL ELEMENTS .............................................. 5
Stereo channels 1 and 2 ................................................ 5
Microphone channel ...................................................... 5
MONITOR section ........................................................... 5
MASTER section ............................................................. 6
Crossfader section ........................................................ 6
Front panel connectors ................................................. 6
XPQ 3D surround effect ................................................ 6
Auto BPM counter .......................................................... 6
3. CONNECTORS .......................................................... 7
4. SPECIFICATIONS ...................................................... 8
5. WARRANTY ............................................................... 9
Your purchase of the BEHRINGER PRO MIXER DX400 has put
you at the forefront of today’s trends in DJ mixing consoles.
Numerous features, such as the beat counter and the looping
path, enable you to work in completely new and creative ways.
The DX400 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
instructions that you will fully understand and be able to properly
use all the features your DX400 has to offer. Take the time to
read everything through!
This manual first describes the terminology used,
so that you can fully understand the DX400 and its
functions. Please read the manual carefully and
keep it for future reference.
1.1 Before you begin
Your DJX400 was carefully packed in the factory and the
packaging is designed to protect the unit from rough handling.
Nevertheless, we recommend that you carefully examine the
packaging and its contents for any signs of physical damage
that may have occurred during transit.
If the unit is damaged, please do NOT return it to
BEHRINGER, but notify your dealer and the shipping
company immediately. Otherwise claims for
damage or replacement may not be granted.
To avoid overheating, ensure that there is enough space
around the unit for cooling and that the device is not placed near
other devices giving off heat.
Uli Behringer
We would like to point out that high volume may
damage your hearing and/or your headphones.
Please turn the MASTER control all the way to the
left before turning on the device. Always make
sure that the appropriate volume is set.
Fig. 2.1: PRO MIXER DJX400 control elements
2.1 Stereo channels 1 and 2
The TRIM control in the CHANNEL section is used to adjust
the level of the input signal.
Each of the two input channels has a 3-band equalizer
(HI, MID and LOW) with kill characteristic. Thus, the signal
can be lowered 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 frequency range out of a
music track.
The total level also depends on the EQ setting.
Thus, you should adjust the equalizer before
regulating the level with the TRIM control.
This is the AUTO BPM COUNTER DISPLAY (see Chapter
The SYNC LOCK button is also a part of the AUTO BPM
COUNTER (see Chapter 2.8).
2.2 Microphone channel
Select the volume of the microphone signal with the TRIM
control in the MIC section.
There is a 2-band equalizer (HI and LOW, no kill
characteristic) in the microphone section. This allows you
to change your voice to adapt perfectly to your sound.
Adjust the channel volume with the CHANNEL fader.
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
You select the input signals with the INPUT SELECTOR
switch (PHONO/CD). “Phono” is for connecting a
turntable. “Line” must be selected for all other signal
sources (e.g. CD or MD players). A special feature allows
you to switch the input sensitivity of the phono input to
line-level, giving the phono connector flexibility (see
2.3 MONITOR section
The MONITOR signal is your headphones signal, allowing you
to listen to music without affecting the MASTER output signal.
The MONITOR Level control determines the volume of
the headphones signal.
With the MONITOR SELECTOR button you select the
signal to be routed to your headphones. You can choose
from signals from channel 1, channel 2 or the MASTER
signal. It is also possible to select two signal sources and
listen to them simultaneously. That could either be the two
input channels (CH-1 and CH-2 pressed) or one input
signal and the MASTER signal (CH-1 or CH-2 and MASTER
pressed). All three signals, however, cannot be
simultaneously routed to the headphones; if this were to
happen, the MASTER signal is the only one that would be
heard. The MASTER signal is taken post MASTER LEVEL
control, whereas the signals from the two input channels
are pre CHANNEL faders and are routed to the MONITOR
2.6 Front panel connectors
Headphones output
CH-1 "L"
CH-1 "R"
CH-2 "L"
CH-2 "R"
CH-1 "L" + CH-2 "L" CH-1 "R" + CH-2 "R"
Table 2.1: Selecting a signal with the Monitor Select button
2.4 MASTER section
Fig. 2.2: Headphones and microphone connector
The LEVEL METER displays the signal level selected with
With this switch you determine whether it is the MASTER
or the MONITOR signal to be indicated on the LEVEL METER.
When the MONITOR LED lights up, it indicates the level
of the headphones signal.
In monitor mode, the LEVEL METER displays the
channel 1 signal on the left and the channel 2 signal
on the right.
This is the MASTER LEVEL control to adjust the output
volume at the MASTER output (see
The SURROUND control determines the intensity of the
XPQ 3D surround effect (see Chapter 2.7).
2.5 CROSSFADER section
The CF CURVE switch, to the right of the CROSSFADER,
allows you to put the fader control character in two stages.
In SOFT mode the volume is controlled evenly over the
whole slide. In SHARP mode the volume control is limited
to the outer portions of the slide. Naturally, a difference in
volume can occur when switching modes. Thus, don’t
use this switch when the music is on!
The CROSSFADER is for crossfading between channels
1 and 2. The CROSSFADER, like the CHANNEL fader, is
also a professional 45 mm fader.
The TIME OFFSET LED indicates the synchronisation of
channels 1 and 2 (see Chapter 2.8).
The TEMPO DIFFERENCE LED displays tempo
differences between the signals from channel 1 and 2
(see Chapter 2.8).
The BEAT ASSIST button is for manually determining the
tempo for channels 1 and 2 (see Chapter 2.8).
The MIC IN connector is the balanced jack input for a
dynamic microphone.
We strongly discourage the use of cheap plugs
for transmitting audio signals. Please use only
high-quality plugs as these provide the best
corrosion protection.
The PHONES OUT connector is for you to listen to bits of
music with your headphones (MONITOR signal). Your
headphones should have a minimum impedance of
32 ohms.
2.7 XPQ 3D surround effect
The XPQ 3D surround function is a built-in effect that puts the
finishing touches 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 select the intensity of the effect
with the XPQ SURROUND control.
2.8 Auto BPM Counter
The PRO MIXER DJX400 auto BPM counter is an extremely
useful feature. It ensures smooth transition from one track to the
next, making your session an absolute success. It can calculate
the various tempi of tracks in bpm (beats per minute). The channel
1 and channel 2 BPM counter sections are identical.
Each channel’s DISPLAY
indicates the track tempo. 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
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
. Pushing this button
manually with the BEAT ASSIST 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 difference in
tempo from channel 1 and channel 2 is illustrated in the form of a
nine-character message on the TEMPO DIFFERENCE-LED
The extent of the difference in tempo is indicated by a
corresponding swing to the right (the channel 1 signal is slower)
or to the left (the channel 2 signal is slower). When the middle
LED lights up, the tempi are the same. The TIME OFFSET LED
below that displays the channel 1 and 2 synchronisation.
Should the middle LED light up, the tracks are synchronised.
Should the display move to the left or right, either channel 1 or
channel 2 is not synchronised. The TEMPO DIFFERENCE and
TIME OFFSET displays are only active if the tempi of both channels
have been fixed in one of the ways described.
To exit the SYNC LOCK or BEAT ASSIST modes, simply push
the SYNC LOCK button once more on both channels.
DX400 before turning on the power amps. To be
sure, slide all the faders to the bottom and switch
all controls to the zero position.
Using the TAPE output you can record your music by
connecting devices such as tape decks, DAT recorders
etc. Unlike the MASTER output, the output volume is fixed,
making it necessary for you to adjust the input level on the
recording device.
DJX400SERIAL NUMBER. Please take the time to complete
and return the warranty card within 14 days of the date
of purchase. Or, simply register online at
Fig. 3.1: The DJX400 rear panel connectors
With the exception of the microphone and headphone
connectors, the PRO MIXER DX400 only has cinch jacks, which
can be found on the rear panel of the console.
The PHONO inputs for channels 1 and 2 are for
connecting a turntable.
These are the CD inputs (Line) to connect a tape deck, CD
or MD player etc.
The GND connectors ground the turntables.
With the PHONO/LINE switch it is possible to switch the
input sensitivity of the PHONO inputs to line-level. This
allows you to connect a tape deck or a CD player to the
PHONO inputs.
The DJX400 has an integrated effect path for an external
effect device The MONITOR section signal is tapped via
SEND and routed, for example, to an echo device. Thus,
the signal at the SEND connector is identical to the
headphones signal and is selected with the MONITOR
SELECTOR button.
The externally processed signal is added to the MASTER
output signal upon its RETURN. The effect signal volume
may only be adjusted at the output control of the effect
device itself, as the DJX400 has no additional level control
for this purpose. If no effects are needed, the RETURN
can also be used as an additional recording path for a
sampler or the like. Here, too, the output volume must be
adjusted on the external device.
Fig. 3.2: DJX400 mains connection and serial number
Turn the DJX400 on with this switch.
This is the connector for the power cable. This is where
the advantage of a sophisticated internal power supply
can be seen: the pulse behaviour of each amplifying circuit
is mainly determined by the voltage reserves available.
Each mixing console is equipped with numerous
operational amplifiers (op amps) to process line level
signals. Due to limited output of their power supplies,
many mixing consoles show signs of “stress” when
subjected to heavy loads. But not your DJX400: the sound
is always clear and transparent.
the unit to the mains, ensure that the voltage setting
matches your local voltage. Blown fuses should only be
replaced by a fuse of the same type and rating. On some
units, the fuses holder can be switched to one of two
positions, i.e. 230 V and 115 V. N.B: should you desire to
operate the unit outside Europe at 115 V, a higher fuse
rating is required.
As soon as you are ready to add an effect signal to
the output signal, the channel on your headphones
(MONITOR) and the channel at the output (MASTER)
must be the same. If you are listening to the other
channel on your headphones, the effect signal of a
completely different song will be added to the
MASTER signal. This is because the effect device
gets its input signal from the MONITOR section (see
) and the effect signal produced in this way is
added to the MASTER signal.
The MASTER output is for connecting to an amplifier and
is to be adjusted with the MASTER LEVEL control.
Always turn the power amps on last to avoid inrush
currents that can easily damage your speakers.
And, to avoid sudden and unpleasant surprises
for your ears, make sure there is no signal at the
Phono 1 and 2
Line 1 and 2
40 dB Gain, elec. balanced input
40 dB Gain @ 1 kHz, unbalanced inputs
0 dB Gain, unbalanced inputs
0 dB Gain, unbalanced input
Phones Out
max. +21 dBu @ +10 dB (Line In)
type 0 dBu
type 0 dBu
type 140 mΩ @ 1% THD
Stereo Low
Stereo Mid
Stereo High
Mic Low
Mic High
+12 dB/-32 dB @ 50 Hz
+12 dB/-32 dB @ 1.2 kHz
+12 dB/-32 dB @ 10 kHz
+12 dB/-12 dB @ 50 Hz
+12 dB/-12 dB @ 10 kHz
ratio (S/N)
Distortion (THD)
Frequency response
Gain control range
> 88 dB (Line)
> 77 dB (Line)
< 0.06%
20 Hz - 20 kHz
-20 dB - +9 dB
Mains Voltage
Export Model
Power Consumption
Mains Connection
(H x W x D)
USA/Canada 120 V ~, 60 Hz
U.K./Australia 240 V ~, 50 Hz
230 V ~, 50 Hz
100 - 120 V ~, 200 - 240 V ~, 50 - 60 Hz
max. 10 W
100 - 120 V ~: T 350 mA H
200 - 240 V ~: T 250 mA H
Standard IEC Receptacle
approx. 3.46" (88 mm)
x 12.2" (310 mm)
x 8.65" (220 mm)
approx. 2.3 kg
BEHRINGER makes every effort to ensure the highest standard of
quality. Necessary modifications are carried out without notice. Thus, the
specifications and design of the device may differ from the information
given in this manual.
To be protected by the extended warranty, the buyer must
complete and return the enclosed warranty card within 14 days
of the date of purchase to BEHRINGER Spezielle Studiotechnik
GmbH, in accordance with the conditions stipulated in § 3. Failure
to return the card in due time (date as per postmark) will void any
extended warranty claims. Based on the conditions herein, the
buyer may also choose to use the online registration option via
the Internet ( or
1. BEHRINGER (BEHRINGER Spezielle Studiotechnik GmbH
including all BEHRINGER subsidiaries listed on the enclosed page,
except BEHRINGER Japan) warrants the mechanical and
electronic components of this product to be free of defects in
material and workmanship for a period of one (1) year* from the
original date of purchase, in accordance with the warranty
regulations described below. If the product shows any defects
within the specified warranty period that are not excluded from
this warranty as described under § 3 and 4, BEHRINGER shall, at
its discretion, either replace or repair the product using suitable
new or reconditioned parts. In the case that other parts are used
which constitute an improvement, BEHRINGER may, at its
discretion, charge the customer for the additional cost of these
2. If the warranty claim proves to be justified, the product will
be returned to the user freight prepaid.
3. Warranty claims other than those indicated above are
expressly excluded.
handling of the product by the user. This also applies to defects
caused by normal wear and tear, in particular, of faders,
potentiometers, keys/buttons and similar parts.
4. Damages/defects caused by the following conditions are
not covered by this warranty:
s improper handling, neglect or failure to operate the unit in
compliance with the instructions given in BEHRINGER user
or service manuals.
s connection or operation of the unit in any way that does not
comply with the technical or safety regulations applicable in
the country where the product is used.
s damages/defects caused by force majeure or any other
condition that is beyond the control of BEHRINGER.
5. Any repair or opening of the unit carried out by unauthorized
personnel (user included) will void the warranty.
6. If an inspection of the product by BEHRINGER shows that
the defect in question is not covered by the warranty, the
inspection costs are payable by the customer.
7. Products which do not meet the terms of this warranty will
be repaired exclusively at the buyer’s expense. BEHRINGER will
inform the buyer of any such circumstance. If the buyer fails to
submit a written repair order within 6 weeks after notification,
BEHRINGER will return the unit C.O.D. with a separate invoice
for freight and packing. Such costs will also be invoiced
separately when the buyer has sent in a written repair order.
1. To obtain warranty service, the buyer (or his authorized
dealer) must call BEHRINGER (see enclosed list) during normal
business hours BEFORE returning the product. All inquiries must
be accompanied by a description of the problem. BEHRINGER
will then issue a return authorization number.
2. Subsequently, the product must be returned in its original
shipping carton, together with the return authorization number to
the address indicated by BEHRINGER.
3. Shipments without freight prepaid will not be accepted.
1. Warranty services will be furnished only if the product is
accompanied by a copy of the original retail dealer’s invoice.
Any product deemed eligible for repair or replacement by
BEHRINGER under the terms of this warranty will be repaired or
replaced within 30 days of receipt of the product at BEHRINGER.
2. If the product needs to be modified or adapted in order to
comply with applicable technical or safety standards on a national
or local level, in any country which is not the country for which
the product was originally developed and manufactured, this
modification/adaptation shall not be considered a defect in
materials or workmanship. The warranty does not cover any
such modification/adaptation, irrespective of whether it was
carried out properly or not. Under the terms of this warranty,
BEHRINGER shall not be held responsible for any cost resulting
from such a modification/adaptation.
This warranty is extended exclusively to the original buyer
(customer of retail dealer) and is not transferable to anyone
who may subsequently purchase this product. No other person
(retail dealer, etc.) shall be entitled to give any warranty promise
on behalf of BEHRINGER.
Failure of BEHRINGER to provide proper warranty service shall
not entitle the buyer to claim (consequential) damages. In no
event shall the liability of BEHRINGER exceed the invoiced value
of the product.
1. This warranty does not exclude or limit the buyer’s statutory
rights provided by national law, in particular, any such rights
against the seller that arise from a legally effective purchase
2. The warranty regulations mentioned herein are applicable
unless they constitute an infringement of national warranty law.
* Customers in the European Union please contact BEHRINGER
Germany Support for further details.
3. Free inspections and maintenance/repair work are expressly
excluded from this warranty, in particular, if caused by improper
The information contained in this manual is subject to change without notice. No part of this manual may be reproduced or
transmitted in any form or by any means, electronic or mechanical, including photocopying and recording of any kind, for any
purpose, without the express written permission of BEHRINGER Spezielle Studiotechnik GmbH.
BEHRINGER is a registered trademark. ALL RIGHTS RESERVED.
© 2002 BEHRINGER Spezielle Studiotechnik GmbH.
BEHRINGER Spezielle Studiotechnik GmbH, Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Münchheide II, Germany
Tel. +49 (0) 21 54 / 92 06-0, Fax +49 (0) 21 54 / 92 06-30