Behringer EURORACK UB1622FX-PRO User manual

Version 1.3 June 2004
Users Manual
EURORACK® UB1622FX-PRO UB1832FX-PRO UB2222FX-PRO UB2442FX-PRO
ENGLISH

2
EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO
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
manual.
IMPORTANT SAFETY INSTRUCTIONS
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 qualified
personnel.
WARNING: To reduce the risk of fire or electric shock, do not
expose this appliance to rain and moisture. The
apparatus shall not be exposed to dripping or
splashing and no objects filled with liquids, such
as vases, shall be placed on the apparatus.
DETAILED SAFETY INSTRUCTIONS:
1) Read these instructi ns.
2) Keep these instructi ns.
3) Heed all warnings.
4) F ll w all instructi ns.
5) D n t use this apparatus near water.
6) Clean nly with dry cl th.
7) D n t bl ck any ventilati n penings. Install in
acc rdance with the manufacturers instructi ns.
8) D n t install near any heat s urces such as radiat rs,
heat registers, st ves, r ther apparatus (including
amplifiers) that pr duce heat.
9) D n t defeat the safety purp se f the p larized r
gr unding-type plug. A p larized plug has tw blades
with ne wider than the ther. A gr unding type plug
has tw blades and a third gr unding pr ng. The wide
blade r the third pr ng are pr vided f r y ur safety. If
the pr vided plug d es n t fit int y ur utlet, c nsult
an electrician f r replacement f the bs lete utlet.
10) Pr tect the p wer c rd fr m being walked n r
pinched particularly at plugs, c nvenience receptacles,
and the p int where they exit fr m the apparatus.
11) Only use attachments/access ries specified by the
manufacturer.
12) Use nly with the cart, stand, trip d, bracket, r table
specified by the manufacturer, r s ld with the
apparatus. When a cart is used, use cauti n when m ving
the cart/apparatus c mbinati n t av id injury fr m
tip- ver.
13) Unplug this apparatus during lightning st rms r
when unused f r l ng peri ds f time.
14) Refer all servicing t qualified service pers nnel.
Servicing is required when the apparatus has been
damaged in any way, such as p wer supply c rd r plug
is damaged, liquid has been spilled r bjects have fallen
int the apparatus, the apparatus has been exp sed t
rain r m isture, d es n t perate n rmally, r has been
dr pped.
15) CAUTION - These service instructi ns are f r use by
qualified service pers nnel nly. T reduce the risk f
electric sh ck d n t perf rm any servicing ther than
that c ntained in the perati n instructi ns unless y u
are qualified t d s .

3
EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO
Dear Customer,
Im sure youre one of
those people who have
devoted themselves body
and soul to your chosen
area and no doubt this has
transformed you into an
expert in your field!
Well, for over 30 years,
my passion has been
music and electronics.
This not only led me to
establish BEHRINGER,
but also enabled me to
convey and share my
enthusiasm with my
employees.
During all the years Ive
been involved with studio
technology and end users,
I have developed a feel for the things that really count, such as
sound quality, reliability and ease of use. Whats more, I have always
had the desire to push the boundaries of technical possibilities to the
extreme.
It was precisely this motivation that prompted me to start work
on a new series of mixing consoles. Since our EURORACKs had
already set new standards world-wide, I knew the development
objectives behind the products bearing my initials had to be
especially ambitious.
Thus, the concept and design of the new UB mixing consoles
bear my signature. The design work, the entire circuit diagram
and PCB development, and even the mechanical concepts are
my own work. I carefully selected each individual component
with the aim of pushing the mixing consoles analog and digital
technologies to their limits.
My vision was to enable you, the user, to give free rein to your
true potential and creativity. The result is incredibly powerful mixing
consoles that offer intuitive operation. They cannot fail to impress
with their extremely flexible routing possibilities plus fantastic wealth
of functions. Innovative technologies, such as the completely new
IMP Invisible Mic Preamps, guarantee optimum sound quality.
And extraordinarily high-quality components provide unrivalled
reliability, even under extreme loads.
Your new UB mixing console is of high quality yet is simple to
use youll soon appreciate that I, both personally and in my
capacity as musician and sound engineer, put you, the end user,
first and that these products were only possible because of the
passion and the attention to detail that went into them.
Thank you for the confidence you have placed in us by
purchasing the UB mixing console. I should also like to thank all
those who, with their personal commitment and passion, have
helped me realize this impressive series of mixing consoles.
Kindest regards,
Uli Behringer
FOREWORD TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS ........................... 2
FOREWORD ................................................................... 3
1. INTRODUCTION ......................................................... 4
1.1 General mixing console functions .................................. 4
1.2 The users manual .......................................................... 4
1.3 Before you get started ................................................... 5
1.3.1 Shipment ............................................................... 5
1.3.2 Initial operation ...................................................... 5
1.3.3 Warranty .............................................................. 5
2. CONTROL ELEMENTS AND CONNECTORS .............. 5
2.1 Mono channels ............................................................... 5
2.1.1 Microphone and line inputs .................................. 5
2.1.2 Equalizer ............................................................... 6
2.1.3 Monitor and effects busses (Aux sends) ........... 6
2.1.4 Routing switch, PAN, SOLO and channel fader . 6
2.2 Stereo channels ............................................................. 7
2.2.1 Channel inputs ...................................................... 7
2.2.2 Equalizer stereo channels ................................... 7
2.2.3 Aux sends stereo channels ................................ 7
2.2.4 Routing switch, solo and channel fader ............. 7
2.3 Interface panel and main section ................................... 7
2.3.1 MON control, aux sends 1, 2 and 3 (FX) ............. 7
2.3.2 Aux send jacks .................................................... 8
2.3.3 Stereo aux return connectors ............................. 8
2.3.4 The monitor section of the UB1832FX-PRO ........ 8
2.3.5 Stereo aux return control ..................................... 8
2.3.6 Supplement to UB1832FX-PRO ............................ 9
2.3.7 XPQ Surround function (UB1832FX-PRO only) 10
2.3.8 CD/Tape input, CD/tape output ........................... 10
2.3.9 Lamp socket (UB2442FX-PRO only) ................. 10
2.3.10 Level meter and monitoring ................................ 10
2.3.11 Subgroups and main mix fader .......................... 11
3.GRAPHIC 9-BAND EQUALIZER
UB1832FX-PRO only) ............................................. 11
4. DIGITAL EFFECTS PROCESSOR .............................. 12
5. REAR PANEL CONNECTORS ................................... 12
5.1 Main mix outputs, insert points and
control room outputs .................................................... 12
5.2 Subgroup outputs ......................................................... 12
5.3 Inserts ........................................................................... 13
5.4 Direct outputs (UB2442FX-PRO only) .......................... 13
5.5 Voltage supply, phantom power supply and fuse ....... 13
6. INSTALLATION ......................................................... 13
6.1 Rack mounting .............................................................. 13
6.2 Cable connections ........................................................ 13
6.2.1 Audio connections ............................................. 14
7. SPECIFICATIONS ..................................................... 15
8. WARRANTY .............................................................. 16

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EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO
y ur headph nes r l udspeakers. Turn the MAIN
MIX faders and ph nes c ntr l in the main secti n
fully d wn bef re y u switch n the unit. Always be
careful t set the appr priate v lume.
1.1 General mixing console functions
A mixing console fulfils three main functions:
sSignal pr cessing:
Preamplificati n
Microphones convert sound waves into voltage that has
to be amplified several-fold then, this voltage is turned into
sound that is reproduced in a loudspeaker. Because micro-
phone capsules are very delicate in their construction,
output voltage is very low and therefore susceptible to
interference. Therefore, mic signal voltage is amplified
directly at the mixer input to a higher signal level that is less
prone to interference. This higher, interference-safe signal
level has to be achieved through amplification using an
amplifier of the highest quality in order to amplify the signal
and add as little noise to it as possible. The IMP Invisible
Mic Preamp performs this role beautifully, leaving no traces
of noise or sound coloration. Interference that could take
place at the preamplification level could affect signal quality
and purity, and would then be passed on to all other
devices, resulting in inaccurate sounding program during
recording or playback.
Level-setting
Signals fed into the mixer using a DI-box (Direct Injection) or
the output of a sound card or a keyboard, often have to be
adjusted to the operating level of your mixing console.
Frequency resp nse c rrecti n
Using the equalizers found in each channel strip, you can
simply, quickly and effectively adjust the way a signal
sounds.
Effects mixing
In addition to the effects processor contained in your mixer,
using the insert connectors on the mono channels and
both aux busses lets you insert additional signal processors
into your signal path.
sSignal distributi n:
Individual signals adjusted at each channel strip are laid
out at the aux sends and returns, and are either fed into
external effects processors or fed back to the internal
effects processor. Then, the signals are brought back into
the main mix either via the aux return connectors or via
direct internal wiring. The mix for the on-stage musicians is
also created using the aux sends (monitor mix). Similarly,
for example, signals for recording equipment, power ampli-
fiers, headphones and 2-track outputs can also be taken.
sMix:
All other mixing console functions fall under this vital category.
Creating a mix means primarily adjusting the volume levels
of individual instruments and voices to one another as well
as giving them the appropriate weight within the overall
frequency spectrum. Likewise, youll have to sensibly
spread individual voices across the stereo image of a signal.
At the end of this process, adjusting the level of the entire
mix to other equipment in the signal path is required (e. g.
recorder/crossover/amplifier).
The control surface of BEHRINGER mixing consoles is opti-
mized in such a way that these functions become easy to fulfil
while the signal path remains simple to follow.
1.2 The users manual
The users manual is designed to give you both an overview of
the controls, as well as detailed information on how to use them.
In order to help you understand the links between the controls,
we have arranged them in groups according to their function. If
1. INTRODUCTION
Congratulations! In purchasing the BEHRINGER EURORACK
you have acquired a mixer whose small size belies its incredible
versatility and audio performance.
The BEHRINGER EURORACK mixing console offers you
premium-quality microphone preamplifiers with optional phantom
power supply, balanced line inputs and the ability to connect
external effects devices. Because of its extensive and carefully
thought-out routing possibilities, your EURORACK lends itself
equally to both live and studio use.
IMP Invisible Mic Preamp
The microphone channels are fitted with BEHRINGERs brand
new high-end IMP INVISIBLE MIC PREAMPs that boast the
following features:
s130 dB dynamic range for an incredible amount of headroom
sA bandwidth ranging from below 10 Hz to over 200 kHz for
crystal-clear reproduction of even the finest nuances
sThe extremely low-noise and distortion-free circuitry gua-
rantees absolutely natural and transparent signal repro-
duction
sThey are perfectly matched to every conceivable micro-
phone with up to 60 dB gain and +48 volt phantom power
supply
sThey enable full utilisation of the greatly extended dynamic
range of your 24-bit/192 kHz HD recorder, thereby main-
taining optimal audio quality
In addition, your BEHRINGER EURORACK offers an
effects processor equipped with 24-bit A/D and D/
A converters. The processor is fitted with the effect
algorithms from our tried and tested 19" multi-effects
device, the VIRTUALIZER PRO DSP2024P. 99 presets are
available providing first-class room simulations, delay and
modulation effects, as well as compression, tube distortion and
many other effects, all with stunning audio quality.
The mixing consoles of the PRO series feature a
state-of-the-art integrated switch-mode power
supply. One of the great advantages is that
(compared to conventional circuits) a switch-mode
power supply adapts to mains voltages between 100 and 240
volts automatically. Furthermore, due to its much greater
efficiency, it consumes much less energy than a conventional
power supply unit.
FBQ Feedback Detecti n System
The FBQ Feedback Detection System integrated
into the graphic EQ of your UB1832FX-PRO is
one of this mixers most outstanding features.
This ingenious circuitry lets you immediately
recognize and eliminate feedback frequencies. The FBQ
Feedback Detection System uses the LEDs in the frequency
band faders of the graphic EQ to indicate the critical frequencies.
This way, what once used to be a labor-intensive search for
feedback frequencies is now an activity that even a child could
master.
V ice Canceller
We have added another useful feature to the
EURORACK UB1832FX-PRO: the Voice Canceller.
The Voice Canceller is a filter circuitry that filters out
vocal portions from a track. Therefore, this mixing
console is ideally suited for use as a karaoke machine. This
feature is also an optimal solution for singers who need
accompanying music for their rehearsals.
CAUTION!
+We sh uld like t draw y ur attenti n t the fact that
extreme v lumes may damage y ur hearing and/ r
2. CONTROL ELEMENTS AND CONNECTORS

5
EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO
you need to know more about specific issues, please visit our
website at http://www.behringer.com. Additional information and
explanations about various music industry/audio technology
terminology can be found on individual product pages as well as
in the glossary.
+The bl ck diagram supplied with the mixing c ns le
gives y u an verview f the c nnecti ns between
the inputs and utputs, as well as the ass ciated
switches and c ntr ls.
For the moment, just try and trace the signal path from the
microphone input to the aux send 1 connector. Dont be put off
by the huge range of possibilities its easier than you think! If you
look at the overview of the controls at the same time, youll be
able to quickly familiarize yourself with your mixing console and
youll soon be making the most of all its many possibilities.
1.3 efore you get started
1.3.1 Shipment
Your mixing console was carefully packed in the factory to
guarantee safe transport. Nevertheless, we recommend that
you carefully examine the packaging and its contents for any
signs of physical damage, which may have occurred during
transit.
+If the unit is damaged, please d NOT return it t us,
but n tify y ur dealer and the shipping c mpany
immediately, therwise claims f r damage r
replacement may n t be granted.
1.3.2 Initial operation
Be sure that there is enough space around the unit for cooling
purposes and to avoid over-heating please do not place your
mixing console on high-temperature devices such as radiators
or power amps. The console is connected to the mains via the
supplied cable. The console meets the required safety standards.
Blown fuses must only be replaced by fuses of the same type
and rating.
+Please n te that all units must be pr perly
gr unded. F r y ur wn safety, y u sh uld never
rem ve any gr und c nnect rs fr m electrical
devices r p wer cables, r render them in-
perative.
+Please ensure that nly qualified pe ple install and
perate the mixing c ns le. During installati n and
perati n, the user must have sufficient electrical
c ntact t earth, therwise electr static discharges
might affect the perati n f the unit.
1.3.3 Warranty
Please take time to fill out and return the warranty card within
14 days after the date of purchase, so as to be entitled to benefit
from our extended warranty. Alternatively, you can use our
online registration option available on the world wide web
(www.behringer.com). You will find the serial number on the
rear of your mixing console.
2. CONTROL ELEMENTS AND
CONNECTORS
This chapter describes the various control elements of your
mixing console. All controls, switches and connectors will be
discussed in detail.
2.1 Mono channels
2.1.1 Microphone and line inputs
Fig. 2.1: Connectors and controls of mic/line inputs
MIC
Each mono input channel offers a balanced microphone input
via XLR as well as switchable phantom power (+48 volt) for
powering condenser microphones.
+Please mute y ur m nit r system bef re y u
switch n phant m p wer. Otherwise p tentially
damaging thumps will be sent t y ur speakers.
Please als n te the instructi ns in chapter 5.5
V ltage supply, phant m p wer and fuse.
LINE IN
Each mono input also has a balanced line input on a 1/4" jack.
You can also connect unbalanced devices using mono jacks to
these inputs.
+Please remember that y u can use either the
micr ph ne input r the line input f a channel, but
n t b th at the same time!
INSERT
Insert points enable the processing of a signal with dynamic
processors or equalizers. They are sourced pre-fader, pre-EQ
and pre-aux send. Detailed information on using insert points
can be found in chapter 5.3.
+Unlike the UB2442FX-PRO, the UB1622FX-PRO,
UB1832FX-PRO and UB2222FX-PRO have their insert
p ints l cated n the rear f the c ns le.
TRIM
Use the TRIM control to adjust the input gain. This control
should always be turned fully counter-clockwise whenever you
connect or disconnect a signal source to one of the inputs.
The scale has 2 different value ranges: the first value range
(+10 to +60 dB) refers to the MIC input and shows the
amplificati n for the signals fed in there.
The second value range (+10 to -40 dB) refers to the line input
and shows its sensitivity. The settings for equipment with st
andard line-level signals (-10 dBV or +4 dBu) look like this: While
the TRIM control is turned all the way down, connect your
equipment. Set the TRIM control to the external devices standard
output level. If that unit has an output signal level display, it should
show 0 dB during signal peaks. For +4dBu, turn up TRIM slightly,
for -10 dBV a bit more. Fine-tuning of a signal being fed in is done
using the level meter. To route the channel signal to the level
2. CONTROL ELEMENTS AND CONNECTORS

6
EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO
signal stays constant even when the channel fader is altered. If
this were not the case, the effects signal of the channel would
remain audible even when the channel fader is turned all the way
down. For monitoring, the aux sends are generally pre-fader, i.e.
they operate independently of the position of the channel fader.
PRE
When the PRE switch is pressed down, the associated aux
send is taken pre-fader.
FX
The aux send marked FX offers a direct route to the built-in
effects processor and is therefore post-fader and post-mute.
Please refer to chapter 4 DIGITAL EFFECTS PROCESSOR for
detailed information.
+If y u are using the built-in effects pr cess r, make
sure that STEREO AUX RETURN 3 has n thing plugged
int it (UB2442FX-PRO and UB2222FX-PRO), therwise
the internal effects return will be muted. This is
n t relevant if y u use the FX OUT jack t drive an
external effects device.
+UB1622FX-PRO and UB1832FX-PRO: On these c n-
s les, the ab ve n te refers t the STEREO AUX
RETURN 2 jacks as these m dels d n t have a
dedicated effect utput.
2.1.4 Routing switch, PAN, SOLO and channel fader
Fig. 2. : The panorama and routing controls
and the channel fader
PA N
The PAN control determines the position of the channel signal
within the stereo image. When working with subgroups, you
can use the PAN control to assign the signal to just one output,
which gives you additional flexibility in recording situations. For
example, when routing to subgroups 3 and 4, panning hard left
will route the signal to group output 3 only, and panning hard
right will route to group output 4 only.
MUTE
The MUTE switch breaks the signal path pre-channel fader,
hence muting that channel in the main mix. The aux sends which
are set to post-fader are likewise muted for that channel, while
the pre-fader monitor paths remain active irrespective of whether
the channel is muted or not.
MUTE LED
The MUTE LED indicates a muted channel.
CLIP-LED
The CLIP-LED lights up when the input signal is driven too
high. If this happens, back off the TRIM control and, if necessary,
check the setting of the channel EQ.
meter, you have to press the SOLO switch and set the MODE
switch in the main section to PFL (LEVEL SET).
Using the TRIM control, drive the signal to the 0-dB mark. This
way you have a vast amount of drive headroom for use with
very dynamic signals. The CLIP display should light up only rarely,
preferably never. While fine-tuning, the equalizer should be set
to neutral.
LOW CUT
Additionally, the mono channels of the mixing consoles have a
high-slope LOW CUT filter for eliminating unwanted, low-
frequency signal components (75 Hz, 18 dB/octave).
2.1.2 Equalizer
All mono input channels have a 3-band equalizer with semi-
parametric mid bands. All bands provide boost or cut of up to
15 dB. In the central position, the equalizer is off (flat).
Fig. 2.2: Equalizer of the input channels
The upper (HIGH) and the lower (LOW) bands are shelving
filters that increase or decrease all frequencies above or below
their cut-off frequency. The cut-off frequencies of the upper
and lower bands are 12 kHz and 80Hz respectively. For the mid
range, the console features a semi-parametric equalizer with a
filter quality (Q) of 1 octave, tunable from 100 Hz to 8 kHz. Use
the MID control to set the amount of boost or cut, and the FREQ
control to determine the central frequency.
2.1.3 Monitor and effects busses Aux sends)
Fig. 2.3: Aux Send control MON and FX in the channel strips
Monitor and effects busses (AUX sends) source their signals
via a control from one or more channels and sum these signals
to a so-called bus. This bus signal is sent to an aux send
connector (for monitoring applications: MON OUT) and then
routed, for example, to an active monitor speaker or external
effects device. In the latter case, the effects return can then be
brought back into the console via the aux return connectors.
All monitor and effects busses are mono, are tapped into post
EQ and offer amplification of up to +15 dB.
Pre-fader/p st-fader
When using effects on a channel signal, it is usual to have the
aux send post fader so that the balance between effect and dry
2. CONTROL ELEMENTS AND CONNECTORS

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EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO
SOLO
The SOLO switch is used to route the channel signal to the
solo bus (Solo In Place) or to the PFL bus (Pre Fader Listen). This
enables you to listen to a channel signal without affecting the
main output signal. The signal you hear is taken either before the
pan control (PFL, mono) or after the pan and channel fader
(Solo, stereo) (cf. chap. 2.3.10 Level meters and monitoring).
SUB (1-2 and 3-4)
The SUB switch routes the signal to the corresponding
subgroups. The UB2442FX-PRO has 4 subgroups (1-2 and 3-4).
MAIN
The MAIN switch routes the signal to the main mix bus.
The channel fader determines the channels volume in the
main mix (or submix).
2.2 Stereo channels
2.2.1 Channel inputs
Fig. 2.5: The various stereo channel inputs
Each stereo channel has two balanced line level inputs on
jacks for left and right channels. Channels 9/10 and 11/12 on the
UB2442FX-PRO feature an additional XLR microphone jack with
phantom power. If only the left jack (marked L) is used, the
channel operates in mono. The stereo channels are designed to
handle typical line level signals, and, depending on model, have
a level switch (+4 dBu or -10 dBV) and/or a line TRIM control.
Both jack inputs will also accept unbalanced connectors.
LOW CUT and MIC TRIM
These two control elements operate on the XLR connectors of
the UB2442FX-PRO, and are used to filter out frequencies below
75 Hz (LOW CUT) and to adjust microphone levels (MIC TRIM).
LINE TRIM
Use this control to adjust the line signal levels on channels
13-16 (UB2442FX-PRO only).
LEVEL
For level matching, the stereo inputs on the UB1622FX-PRO,
UB1832FX-PRO and UB2222FX-PRO have a LEVEL switch to
select between +4dBu and -10dBV. At -10dBV (homerecording
level), the input is more sensitive than at +4dBu (studio level).
2.2.2 Equalizer stereo channels
The stereo channels contain a stereo EQ section. The cut-off
frequencies of the high and low bands are 12 kHz and 80 Hz
respectively, while the center frequencies of the high-mid and
low-mid bands are 3 kHz and 500 Hz respectively. The HIGH and
LOW controls have the same characteristics as the EQ in the
mono channels. Both mid range bands are of the peak filter type.
A stereo EQ is superior to two mono EQs on a stereo signal as
two separate EQs will usually result in a discrepancy between
left and right channels.
2.2.3 Aux sends stereo channels
In principle, the aux sends of the stereo channels function the
same way as those of the mono channels. As the aux sends are
mono, the send from a stereo channel is first summed to mono
before it reaches the aux bus.
2.2.4 Routing switch, solo and channel fader
Fig. 2.6: Balance control and mute switch
BAL
The BAL(ANCE) control has a similar function to the PAN control
in the mono channels.
The balance control determines the levels of the left and right
input signals relative to each other before both signals are routed
to the left/right main mix bus (or odd/even subgroup).
The remaining control elements in the stereo channels perform
the same functions as their counterparts in the mono channels
(MUTE switch, MUTE and CLIP LEDs, SOLO switch, SUB and
MAIN switches and channel fader).
2.3 Interface panel and main section
Where it was useful to trace the signal flow from top to bottom
in order to gain an understanding of the channel strips, we now
look at the mixing console from left to right. The signals are, so to
speak, collected from the same point on each of the channel
strips and then routed to the main section all together.
2.3.1 MON control, aux sends 1, 2 and 3 FX)
Turning up the AUX 1 control in a channel routes the signal to
the aux send bus 1.
+As the UB1832FX-PRO is equipped with an additi nal
m nit r path, its first aux c ntr l in the channel
strips is named MON. The c ns le als has a
dedicated master fader (MON SEND) f r this aux path.
AUX SEND 1, 2 and 4
The AUX SEND 1 control governs the master send level of the
mix created by the individual channel AUX 1 sends.
Likewise, the AUX SEND 2 contol is the master control for the
aux 2 bus, and AUX SEND controls the AUX 4 bus.
Fig. 2.7: The AUX SEND controls of the main section!
AUX SEND 3 (FX)
The FX control determines the signal level for effects
processing, i.e. regulates the level to an external (or the inter-
nal) effects device.
2. CONTROL ELEMENTS AND CONNECTORS

8
EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO
+A signal fed int the stere return jacks can be
utput via an aux send jack. M re inf rmati n n
this can be f und in chapter 2.3.5 STEREO AUX
RETURN 1/2 (TO AUX SEND).
STEREO AUX RETURN FX
The STEREO AUX RETURN FX jacks accept the effects mix
return (created using the channel FX sends). If these jacks are
already in use as additional inputs, you can route the effects
signal back into the console via a different channel. The advantage
of this is that you can now use that channels EQ on the effects
return signal.
+In this instance, the FX c ntr l f the channel being
used as an effects return sh uld be turned fully
c untercl ckwise, therwise feedback pr blems
c uld ccur!
+If y u wish t use the internal effects pr cess r,
d n t plug any c nnect rs int the STEREO AUX
RETURN FX jacks, unless y u want t tap the
pr cessed signal via the FX OUT (UB2222FX-PRO and
UB2442FX-PRO nly).
2.3.4 The monitor section of the UB1832FX-PRO
One of the ways that the UB1832FX-PRO differs from the other
models of this series is that it has a separate monitor output.
Fig. 2.10: Monitor output of the UB1832FX-PRO
The first aux send (MON) on this console is used to set up the
monitor mix from the channels and route it to the MON SEND
fader.
Fig. 2.11: Monitor fader of the UB1832FX-PRO
MUTE
Press the MUTE switch to mute the monitor send.
SOLO
The SOLO switch routes the monitor send to the solo bus
(post-fader and post-mute) or to the PFL bus (pre-fader and
pre-mute). The position of the MODE switch in the main section
determines which of the buses is selected.
2.3.5 Stereo aux return control
STEREO AUX RETURN 1
The STEREO AUX RETURN 1 control determines the level of
this signal in the main mix. If STEREO AUX RETURN 1 is used as
effects return, this will determine the level of the effects when
mixed with any dry channel signal.
UB1622FX-PRO and UB1832FX-PRO: On these consoles, this
function is performed by the AUX SEND 2 control (FX).
SOLO
You can use the SOLO switch to separately monitor the aux
sends via the CONTROL ROOM/PHONES outputs and check
these with the level meters.
+If y u want t m nit r the signal f just ne AUX
bus, n ne f the ther SOLO SWITCHES sh uld be
pressed and the MODE switch sh uld be in the SOLO
p siti n (n t depressed).
2.3.2 Aux send jacks
Fig. 2.8: Aux send jacks
AUX SEND jacks
The AUX SEND jack should be used when hooking up a monitor
power amp or active monitor speaker system. The relevant aux
path should be set pre-fader.
+On the UB2222FX-PRO, aux send 1 is hard wired
as pre-fader and hence called MON. M del
UB1832FX-PRO has a dedicated m nit r utput
(MON OUT jack), cf. chapter 2.3.4.
As already mentioned, the aux sends in the channelsif set
post-fadercan be used to connect to external effects devices.
AUX SEND (FX)
The AUX SEND (FX) jack carries the master aux mix (from the
channels FX controls). You can connect this to an external
effects device to process the FX bus. The processed signal can
then be brought from the effects device back into the STEREO
AUX RETURN jacks.
2.3.3 Stereo aux return connectors
Fig. 2.9: The aux return connectors
+On the UB2222FX-PRO, UB1832FX-PRO and
UB1622FX-PRO the STEREO AUX RETURN jacks
are l cated n the fr nt panel f the unit.
STEREO AUX RETURN
The STEREO AUX RETURN 1 jacks generally serve as the
return for the effects mix (created using the post-fader aux
sends) by connecting the output of an external effects device. If
only the left jack is connected, the AUX RETURN is automatically
switched to mono.
+Y u can als use these jacks as additi nal line
inputs.
All stereo aux returns are balanced, but can of course also be
used with unbalanced connectors. If you use an aux send for
monitoring, the associated unused stereo aux returns are
available for other line level signals (e.g. keyboards).
2. CONTROL ELEMENTS AND CONNECTORS

EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO
+When used in this way, the effects device sh uld
be set at 100% effect.
Fig. 2.12: Stereo aux return and
stereo aux return (to aux send) controls
STEREO AUX RETURN 1/2 (TO AUX SEND)
The two right-hand STEREO AUX RETURN controls have a
special function: they can be used to add an effect to a monitor
mix. An example follows (UB1622FX-PRO wired to an effects
device):
M nit r mix with effect
In this instance, your effects device should be set up as follows:
the AUX SEND 2 jack should be connected to the L/Mono input of
your effects device, with its outputs coming back into the STEREO
AUX RETURN 1 jacks.
Connect the AUX SEND 1 jack output to the amplifier of your
monitor system. The AUX SEND 1 master control determines the
overall volume of the monitor mix.
Using the STEREO AUX RETURN (TO AUX SEND) control, the
effect signal can now be blended into the monitor mix.
You can easily use the headphones distribution amplifier
BEHRINGER POWERPLAY PRO HA4600/HA4700/HA8000 to
provide four (HA8000: eight) stereo headphone mixes for your
studio.
The following table shows which jacks on the console can be
used for this purpose.
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Tab. 2.1: Connectors and controls for monitor mix with effect
STEREO AUX RETURN FX
On consoles UB1622FX-PRO and UB1832FX-PRO this is the
STEREO AUX RETURN 2, on consoles UB2222FX-PRO and
UB2442FX-PRO this is the STEREO AUX RETURN 3.
Use the STEREO AUX RETURN FX control to determine the
level of the signal routed from the AUX RETURN FX jacks to the
main mix. If nothing is connected to these jacks, the output of the
built-in effects module will appear.
MAIN MIX / TO SUBS
This switch routes the signal fed in via the STEREO AUX
RETURN FX jacks either to the main mix (not pressed) or to the
submix (pressed).
On the UB2442FX-PRO you can select which subgroup the
signal is assigned to (switches 1-2 / 3-4, to the right of MAIN MIX /
TO SUBS).
SOLO RETURNS
Additionally, this model allows you to route the aux returns
together to the solo bus and the PFL bus. The LED lights up when
Solo is on.
STEREO AUX RETURN 4 (UB2442FX-PRO nly)
This control behaves the same way as the other stereo aux
returns. Additionally, it provides for a simple monitor path using
the switch CTRL ROOM & PHONES ONLY.
CTRL ROOM & PHONES ONLY
Use this switch to route the signal appearing at the AUX
RETURN 4 jacks to the control room and headphones outputs.
2.3.6 Supplement to UB1832FX-PRO
The UB1832FX-PRO has a stereo fader for the AUX RETURN
FX and offers a variety of routing options: MUTE disables the
effect return (but not PFL of course!), SOLO routes it to the Solo
or PFL busses, SUB to the subgroups and MAIN to the main mix.
Fig. 2.13: The FX/AUX 2 return fader of the UB1832FX-PRO
MON
The MON switch routes the signals appearing at the AUX
RETURN2 jacks to the monitor path, along with the monitor signals
from the channels.
If you wish to route the effect signal to the monitor mix, you
can also switch aux 1 to pre-fader, drive the effect device from
the aux 1 output and return the effect signal via AUX RETURN 2
to the monitor signal.
2. CONTROL ELEMENTS AND CONNECTORS

10
EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO
2.3.7 XPQ Surround function UB1832FX-PRO only)
Fig. 2.1 : Control elements of the surround function
The XPQ surround function can be enabled/
disabled with the XPQ TO MAIN switch. This is
a built-in effect that widens the stereo width,
thus making the sound more lively and trans-
parent. Use the SURROUND control to determine the intensity of
this effect.
VOICE CANCELLER
Here, you have a filter circuitry that lets you almost
entirely remove the vocal portion of a recording. The
filter is constructed in such a way that voice
frequencies are targeted without majorly affecting
the rest of the signal. Additionally, the filter seizes only the middle
of the stereo image, exactly there where the vocals are typically
located.
+C nnect the signal s urces y u wish t pr cess
using the V ice Canceller t the CD/TAPE INPUT
c nnect rs. The V ice Canceller circuitry is n t
available f r ther inputs.
Possible applications for the Voice Canceller are obvious: you
can very simply stage background music for Karaoke events. Of
course, you can also do this at home or at your rehearsal room
before you hit the stage. Singers with their own band can practice
singing difficult parts using a complete playback from a tape
player or a CD, thus minimizing rehearsal time.
2.3.8 CD/Tape input, CD/tape output
Fig. 2.15: 2-track connectors and lamp socket
CD/TAPE INPUT
The CD/TAPE INPUT jacks (RCA) are designed to accept a
2-track recorder (e.g. DAT recorder), or they can be used as
stereo line input. The output signal of a second EURORACK or
the BEHRINGER ULTRALINK PRO MX882 can also be connected
here. If you connect the output of a hi-fi amplifier (with a source
selection switch) to the TAPE INPUT, you can easily listen to
additional sources (e.g. cassette recorder, MDplayer, sound
card, etc.).
Using the voice canceller function (UB1832FX-PRO only), you
can process all signals being brought into your mixing console
via these connectors.
CD/TAPE OUTPUT
These connectors are wired in parallel to the MAIN OUT and
carry the main mix signal (unbalanced). Connect this to the inputs
of your recording device. The final output level can be adjusted
via the high-precision MAIN MIX fader.
+If y u c nnect a c mpress r r a n ise gate p st
2-track utput, the main mix fader will pr bably n t
be able t create a satisfact ry fade- ut effect.
2.3.9 Lamp socket UB2442FX-PRO only)
Use this BNC socket to connect a gooseneck lamp (12 V DC,
max. 0.5 A).
2.3.10 Level meter and monitoring
Fig. 2.16: Control room and phones sections of the
UB2 2FX-PRO
TAPE
The TAPE switch routes the signal from the TAPE IN jacks to
the level meter, the CONTROL ROOM OUT outputs and the
PHONES jackthis is a simple way to check recorded signals
via monitor speakers or headphones.
SUBS 1-2 r SUB
The SUBS 1-2 switch routes subgroup 1-2 to the level meter,
CONTROL ROOM OUT and phones.
SUBS 3-4
The SUBS 3- switch performs a similar function for subgroup
3-4 (UB2442FX-PRO only).
MAIN MIX
The MAIN MIX switch sends the main mix to the CONTROL
ROOM OUT and the PHONES output as well as to the level meter.
CTRL ROOM & PHONES
Use this control to adjust the control room output level and the
headphones volume.
TAPE TO MAIN
When the TAPE TO MAIN switch is depressed, the 2-track
input is routed to the main mix and thus serves as an additional
input for tape machines. You can also connect MIDI instruments or
other signals here that do not require any further processing. At
the same time, this switch disables the main mix to tape output link.
POWER
The blue POWER LED indicates that the device is switched on.
+48 V
The red + 8 V LED lights up when phantom power is switched
on. Phantom power is required to operate condenser
microphones.
+While phant m p wer is switched n, d n t
c nnect r disc nnect micr ph nes n the mixer
( r the stageb x/wallb x). C nnect any micr -
ph nes bef re switching n phant m p wer.
Additi nally, m nit r/PA speakers sh uld be muted
bef re y u activate the phant m p wer supply. After
switching n, wait appr x. ne minute bef re
adjusting the input gain s that the system has time
t stabilize.
LEVEL METER
The high-precision level meters always give you an accurate
display of signal level.
2. CONTROL ELEMENTS AND CONNECTORS