BCA2000

User’s Manual
Version 1.3 July 2006
B-CONTROL AUDIO
B-CONTROL AUDIO BCA2000
IMPORTANT SAFETY INSTRUCTIONS DETAILED SAFETY INSTRUCTIONS:
1) Read these instructions.

2) Keep these instructions.

3) Heed all warnings.

4) Follow all instructions.

5) Do not use this apparatus near water.

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 6) Clean only with dry cloth.
personnel.
7) Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.

WARNING: To reduce the risk of fire or electric shock, do not

8) Do not install near any heat sources such as radiators,
expose this appliance to rain and moisture. The
heat registers, stoves, or other apparatus (including
apparatus shall not be exposed to dripping or
amplifiers) that produce heat.
splashing and no objects filled with liquids, such
as vases, shall be placed on the apparatus.
9) Do not defeat the safety purpose of the polarized or
grounding-type plug. A 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
This symbol, wherever it appears, alerts you to the blade or the third prong are provided for your safety. If
presence of uninsulated dangerous voltage inside the provided plug does not fit into your outlet, consult
the enclosure—voltage that may be sufficient to an electrician for replacement of the obsolete outlet.
constitute a risk of shock.
10) Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
This symbol, wherever it appears, alerts you to
important operating and maintenance instructions 11) Only use attachments/accessories specified by the
in the accompanying literature. Please read the manufacturer.
manual.
12) Use only with the cart, stand, tripod, bracket, or table
specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when moving
the cart/apparatus combination to avoid injury from
tip-over.

13) Unplug this apparatus during lightning storms or

when unused for long periods of time.

14) Refer all servicing to qualified service personnel.

Servicing is required when 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 apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been
dropped.

15) CAUTION - These service instructions are for use by

qualified service personnel only. To reduce the risk of
electric shock do not perform any servicing other than
that contained in the operation instructions unless you
are qualified to do so.

2
 B-CONTROL AUDIO BCA2000

B-CONTROL AUDIO
High-Speed USB 2.0 Multi-Channel Audio/MIDI Control Interface with ADAT® Support, Surround
Outputs and Extensive Monitor Control Section

BCA2000
s High-performance analog input section with 2 state-of-the-art, studio-grade IMP “Invisible” Mic Preamps,
+48 V phantom power plus Line and Hi-Z Guitar inputs

s Ultra-flexible input/output configuration supported by a comprehensive, audio-routing LED indicator plus

button (status) LEDs

s Adjustable studio-grade analog input dynamic control (noise gate and limiter) prevents distorted input
signals or A/D converter overload

s Fully equipped USB/MIDI interface with 1 MIDI In / 2 MIDI Outs individually selectable for 16 / 32 MIDI
channels

s Versatile digital input and output formats like ADAT®, ADAT® S/MUX, AES/EBU and S/PDIF, including
Dolby® Digital- and DTS® support

s Simultaneous use of 3 analog input sources (1 mono + 1 stereo), digital input sources plus full
multi-channel playback at 24-bit/96 kHz

s High-resolution 2 x 12-segment LED stereo in/out level meter

s High-speed USB 2.0 interface with 24-bit/96 kHz, supports 8 in + 8 out channels simultaneously
(analog and digital) with low-latency ASIO 2 and WDM drivers

s Fully equipped master and monitor sections with 100-mm faders, individual level controls for 2 speakers,
2 phones and Direct monitor function plus separate Dim, Mute and Mono functions

s High-quality components and exceptionally rugged construction ensure long life

s Conceived and designed by BEHRINGER Germany

All Trademarks mentioned belong to their respective owners and are not affiliated with BEHRINGER

3
B-CONTROL AUDIO BCA2000
FOREWORD TABLE OF CONTENTS
Dear Customer,
1. INTRODUCTION ......................................................... 5
welcome to the team of
BEHRINGER users, and 1.1 Before you get started ................................................... 5
thank you very much for 1.1.1 Shipment ............................................................... 5
expressing your confi- 1.1.2 Initial operation ...................................................... 5
dence in us by purchas- 1.1.3 Online registration ................................................ 5
ing the B-CONTROL. 1.2 System requirements ..................................................... 5
1.2.1 Outline of functions for High-Speed USB ..............
Writing this foreword (USB 2.0) .............................................................. 5
for you gives me great 1.2.2 Outline of functions for Full-Speed USB .............. 5
pleasure, because it
represents the culmi-
2. INSTALLATION ........................................................... 6
nation of many months of
hard work delivered by 2.1 Hardware connection/driver installation ........................ 6
our engineering team to 2.2 Control panel software .................................................. 6
achieve a very ambitious
goal: to deliver an 3. CONTROL ELEMENTS AND CONNECTIONS ............. 8
outstanding USB audio/
MIDI control interface, 3.1 Control surface ............................................................... 8
whose extremely flexible 3.1.1 Input section ......................................................... 8
connections let it assume 3.1.2 Main/Monitor section ............................................ 9
the central control role in almost any computer studio. The task 3.1.3 Dynamics section ................................................. 9
of designing our new B-CONTROL certainly meant a great deal 3.2 The rear panel .............................................................. 10
of responsibility, which we assumed by focusing on you, the
discerning computer user and musician. Meeting your 4. AUDIO ROUTING ...................................................... 11
expectations also meant a lot of work and night shifts. But it was
fun, too. Developing a product usually brings a lot of people 4.1 Input routing .................................................................. 11
together, and what a great feeling it is when all who participated 4.2 Output routing ............................................................... 12
in such a project can be proud of what they’ve achieved. 4.2.1 Output routing in ADAT® mode ........................... 12
4.2.2 Output routing in 2-CHANNEL mode .................. 13
It is our philosophy to share our enjoyment with you, because 4.3 First steps with the B-CONTROL ................................. 13
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 5. APPLICATIONS ........................................................ 14
it successful. In return, we guarantee you uncompromising quality 5.1 Mobile studio ................................................................. 14
as well as excellent technical and audio properties at an extremely 5.2 Project studio ................................................................ 15
reasonable price. All of this will enable you to give free rein to 5.3 Professional studio ....................................................... 16
your creativity without being hampered by budget constraints. 5.4 Basis recording session .............................................. 17
We are often asked how we manage to produce such high- 5.5 Multi-channel recording with 5.1 surround monitoring 18
quality equipment at such unbelievably low prices. The answer
is quite simple: it’s you, our customers! Many satisfied customers 6. CONNECTIONS AND FORMATS ............................... 20
mean large sales volumes enabling us to get better purchasing
6.1 Glossary ....................................................................... 20
terms for components, etc. Isn’t it only fair to pass this benefit on
6.2 Audio connections ....................................................... 22
to you? Because we know that your success is our success
6.3 Digital inputs and outputs ............................................. 22
too!
6.4 MIDI connectors ............................................................ 23
I would like to thank all of you who have made the B-CONTROL
possible. You have all made your own personal contributions, 7. SPECIFICATIONS ..................................................... 23
from the developers to the many other employees at this company,
and to you, the BEHRINGER user.
8. WARRANTY .............................................................. 24

My friends, it’s been worth the effort!

FCC COMPLIANCE INFORMATION .............................. 25

Thank you very much,

Uli Behringer

4
 B-CONTROL AUDIO BCA2000
1. INTRODUCTION 1.1.3 Online registration
Please, do remember to register your new BEHRINGER equipment
Welcome to the family of BCA2000 users and thank you for right after your purchase by visiting www.behringer.com and
expressing your confidence in BEHRINGER products by kindly read the terms and conditions of our warranty carefully.
purchasing the B-CONTROL.
Should your BEHRINGER product malfunction, our goal is to have
The BCA2000 is an extremely flexible USB audio and MIDI interface it repaired as quickly as possible. To arrange for warranty service,
with a unique design concept that will effectively support you in please contact the retailer from whom the equipment was
your computer-based music and audio endeavors. purchased. Should your BEHRINGER dealer not be located in
your vicinity, you may directly contact one of our subsidiaries.
Our goal in designing the B-CONTROL was to create an intuitive,
Corresponding contact information is included in the original
flexible and optically attractive product that gives you comfortable
equipment packaging (Global Contact Information/European
control (instead of those tiny knobs and buttons found on so
Contact Information). Should your country not be listed, please
many interfaces) and plenty of connectivity options, so that you
contact the distributor nearest you. A list of distributors can be
can concentrate on what’s really important: your music. That’s
found in the support area of our website (www.behringer.com).
why we started by creating a mixing console with a clean,
concise layout: ultra-precise 100-mm faders, a high-resolution Registering your purchase and equipment with us helps us
LED level display, rugged construction, our ultra low-noise IMP process your repair claims quicker and more efficiently.
“invisible” microphone preamplifiers and an extensive monitor
section—features you’ve come to expect from a BEHRINGER Thank you for your cooperation!
mixing console. Then we added a multitude of interface functions:
full 24-bit/96 kHz support in multichannel operation, optical and 1.2 System requirements
coaxial digital connectors that support all common formats,
simultaneous reproduction of eight input and eight output channels, Operating system Windows® XP with Service Pack 2
6 analog outputs for subgroup/stem or 5.1 surround reproduction Computer Windows® PC with USB connector
and a simultaneously usable USB MIDI interface. All of this makes Processor Intel Pentium Processor 1.2 GHz or better
the BCA2000 a one-of-a-kind high-speed USB audio/MIDI 256 MB RAM (512 MB recommended)
interface featuring a comfortable mixing console design. Chip set Intel chip set recommended
USB modes Full eight-channel input/output operation
+ The following user’s manual is intended to with 24-bit/96 kHz with USB 2.0
familiarize you with the unit’s control elements, interface (High-Speed USB, 480 Mbps)
so that you can master all the functions. After having
thoroughly read the user’s manual, store it at a safe
place for future reference.
+ When connecting to a Full-Speed USB interface
(12 Mbps, also known as USB 1.1), only limited
operation is possible (see 1.2.2).

1.1 Before you get started

1.2.1 Outline of functions for High-Speed USB
1.1.1 Shipment (USB 2.0)
The BCA2000 was carefully packed at the assembly plant to Audio inputs:
assure secure transport. Should the condition of the cardboard s Simultaneous recording of three analog signals (1 x mono,
box suggest that damage may have taken place, please inspect 1 x stereo) and one stereo digital signal.
the unit immediately and look for physical indications of damage. s Alternatively, simultaneous recording of eight audio channels
+ Damaged equipment should NEVER be sent directly
at 44.1 kHz or at 48 kHz with the optical input in ADAT®
format (four-channel recording at 24-bit/96 kHz with
to us. Please inform the dealer from whom you
ADAT® S/MUX).
acquired the unit immediately as well as the
transportation company from which you took s Support for S/PDIF, AES/EBU, ADAT®, and ADAT® S/MUX
delivery. Otherwise, all claims for replacement/ digital audio formats.
repair may be rendered invalid.
Audio outputs:
+ To assure optimal protection of your B-CONTROL s Simultaneous reproduction of eight output signals (six
during use or transport, we recommend utilizing a analog and one stereo digital signal). The stereo digital
carrying case. output signal is available in parallel on both the coaxial and
optical outputs.
+ Please always use the original packaging to avoid s Alternatively, reproduction of eight digital signals at 44.1 or
damage due to storage or shipping. 48 kHz via the optical output in ADAT® format (four-channel
reproduction at 24-bit/96 kHz with ADAT® S/MUX), also
+ Never let unsupervised children play with the available in parallel on analog outputs 1 to 6 and the coaxial
B-CONTROL or with its packaging. digital output.

+ Please dispose of all packaging materials in an

s Support for S/PDIF, AES/EBU, ADAT®, ADAT® S/MUX,
DOLBY® DIGITAL and DTS® digital audio formats.
environmentally friendly fashion.
MIDI:
s Simultaneous use of all MIDI inputs and outputs.
1.1.2 Initial operation
Please make sure the unit is provided with sufficient ventilation,
and never place the B-CONTROL on top of an amplifier or in the
vicinity of a heater to avoid the risk of overheating.
A power supply unit which meets the necessary safety
requirements is enclosed for connecting the B-CONTROL to the
mains.

1. INTRODUCTION 5
B-CONTROL AUDIO BCA2000
1.2.2 Outline of functions for Full-Speed USB SETUP window:
Audio inputs:
s Simultaneous recording of three analog signals (1 x mono,
1 x stereo) and one stereo digital signal.
s Alternatively, simultaneous recording of four ADAT® channels
at 44.1 and 48 kHz.
s Support of S/PDIF, AES/EBU and ADAT® digital audio formats.
Audio outputs:
s Simultaneous reproduction of two stereo signals, available
in parallel on the analog and digital outputs.
s Alternatively, reproduction of four ADAT® channels at 44.1
kHz or 48 kHz via the optical output, also available in parallel
on all analog outputs and on the coaxial digital output. Fig. 2.1: Control panel software SETUP window
s Support of S/PDIF, AES/EBU, ADAT®, DOLBY® DIGITAL and
The following settings can be made in the Setup window:
DTS® digital audio formats.
Dig. 2-Ch. Output Format: The format for two-channel digital
MIDI:
output is switchable between AES/EBU and S/PDIF. Format
s Additionally, simultaneous use of all MIDI functions.
selection has an effect on both the coaxial and the optical output,
unless the OPTICAL OUT button ( ) is set to “ADAT”.

2. INSTALLATION Clock Select: Selects a wordclock synchronization source. DIG.

2-CH./ADAT enables external synchronization via the optical or
coaxial input (which input serves as the synchronization source
2.1 Hardware connection and is determined by the DIGITAL IN button ( ). ADAT ®
synchronization is only possible via the optical input with an
driver installation
ADAT® signal present. To synchronize to a 96 kHz signal, select
s Before you start the setup.exe program, close all S/MUX (ADAT IN). When set to INTERNAL, the BCA2000
applications, including any virus scanners synchronizes itself to the sample rate selected in your audio
software.
s Via a USB port, connect the BCA2000 to your computer.
However, do not yet power up the B-CONTROL! MIDI Port B Select: In this field, MIDI OUT B can be configured as
a MIDI THRU. When THRU mode is activated, this output forwards
s Unzip the setup.zip file. To start the installation process, incoming data with no additional processing. If OUT is selected,
double click the setup.exe icon. Then, follow the on- the OUT B/THRU connector can be addressed by the computer
screen instructions! as a second MIDI output, giving you a total of 32 MIDI channels.
+ Before you continue, switch off the BCA2000. At the ASIO Direct Monitoring: This setting determines which signal is
appropriate step of the installation process, monitored during recording. If Digital is selected, only the input
setup.exe will prompt you to switch on the BCA2000. signal will be heard with no latency (delay). In Analog mode,
If you opened “Found New Hardware Wizard”, close both the recorded tracks and the input signal (the signal being
this wizard. recorded) are heard simultaneously; the mix between the two
can be adjusted via the MONITOR BALANCE fader ( ). In both
+ Although setup.exe repeats the installation process modes, only the output signal is heard when the audio software
for each driver, setup.exe guides you through each is in playback mode. Switching between recording and playback
step of the relevant installation processes. mode is accomplished via your audio software.
Driver Latency/Buffer Size: Here you can adjust the latency
+ If the message “Driver software has not passed (system-inherent audio signal delay) in order to optimize your
Windows ®-Logo testing” appears during the computer’s performance. The lower the latency (and
installation process, ignore this message and click consequently the buffer size), the higher the CPU usage. When
“Continue installation”. the processor workload is too high, you will notice frequent
pauses in audio playback (as the processor catches up). If you
change this setting, a message will appear stating that your
2.2 Control panel software changes will take effect only after you close the control panel.
The control panel software gives you access to all global
B-CONTROL settings and is integrated into your computer system
during driver installation. To launch the control panel software,
click on the BCA2000 control panel symbol in the task bar at the
bottom right of your screen.
Any changes to settings in the control panel are immediately
effective, with the exception of the “Driver Latency/Buffer Size”
setting: if you move the fader, a message pops up informing you
that the new latency/buffer size setting will be effective after
you close the control panel.
ADAT® 96 kHz operation is indicated in all windows (right field),
along with the current sample rate, ASIO and USB driver version
and firmware version.

6 2. INSTALLATION
 B-CONTROL AUDIO BCA2000
WDM window: BLOCK DIAGRAM window:

Fig. 2.2: Control panel software WDM window Fig. 2.4: Control panel software BLOCK DIAGRAM window

If your music applications do not support ASIO, use the WDM The BLOCK DIAGRAM window shows the entire audio signal
device driver (most software media players). flow of your BCA2000 and serves as a good source of
information if you don’t have the user’s manual handy.
On this page, all parameters apply only to the WDM device driver.
The Windows® operating system suggests all default parameter
settings. However, this does not mean that the operating system
will accept these default settings. The maximum value that is
available for each parameter depends on parameter settings in
the Windows® operating system and in the applications that you
use.
High parameter settings can lower the performance of non-
audio applications. If the main task of your computer is to run
audio applications, select high values for the parameters. In non-
audio applications (games, for example), select low values for
the parameters.
Note: In USB1.1 mode, the following parameter settings are not
available: max. resolution: 16 bit, max. sample rate: 48000, max.
number of outputs: 4.
USB INFO window:

Fig. 2.3: Control panel software USB INFO window

The USB INFO window allows you to adapt the B-CONTROL to

the USB connection you are using. If you are running your
B-CONTROL on Full-Speed USB, only limited functionality is
available. The table shows which input/output combinations are
possible with your USB interface.
If USB2.0 mode does not operate perfectly on your computer,
activate the Force USB1.1 mode in the left column. Via Force
USB1.1, the computer works in Full Speed mode (USB1.1), even
if the BCA2000 is connected to a USB 2.0 interface.
Each time you activate or, alternatively deactivate “Force USB1”,
switch the BCA2000 off. Then, switch the BCA2000 on again.
The first time you do this, the software installs new drivers.
Note: In USB1 mode, all features are not available (see ch. 1.2.2).

2. INSTALLATION 7
B-CONTROL AUDIO BCA2000
3. CONTROL ELEMENTS AND CONNECTIONS
The various control elements of your BCA2000 are described in this chapter. All controls and connections are explained in detail, and
there are several useful tips on their use.

3.1 Control surface

Fig. 3.1: The BCA2000’s control elements

3.1.1 Input section The 100-mm channel faders control the level of the input
The TRIM control adjusts the level of input signals. signal that is routed to the A/D converter.

The CLIP and SIGNAL LEDs show the input signal level. MIC A and LINE L are the two possible positions of this
SIGNAL illuminates when there is an incoming signal, switch, which controls the input that is routed to a particular
whereas CLIP illuminates when the level is too high and channel. The corresponding LEDs indicate the input you
could cause distortion. If this happens, turn the TRIM control selected. If GUITAR HI-Z switch is pressed, the left
counterclockwise slightly and the CLIP LED no longer MIC A/LINE L switch is deactivated.
illuminates.
The GUITAR (HI-Z) button feeds the guitar signal from the
The +48 V button activates phantom power for a condenser guitar input into the mono input channel. This button
microphone connected to the XLR input. overrides the MIC A/LINE L button : when GUITAR
(HI-Z) is activated, MIC A or LINE L can no longer be
+ Be sure to mute your audio system before you selected.
activate the phantom power supply to prevent
audible and potentially damaging switch-on thumps The GUITAR IN (HI-Z) input allows you to directly connect
from reaching your monitor speakers. an electric guitar or other high-impedance signal
(e.g. passive pickups of acoustic instruments).
PAN positions the signal in the stereo field. If the LINE
STEREO button is pressed, the PAN control adjusts MIC B/LINE R is the input selection button for the stereo
the BALANCE between L and R signals in the stereo input input channel. Select between MIC B and LINE R (the right
channel. line input). The corresponding LEDs indicate the selected
input.

8 3. CONTROL ELEMENTS AND CONNECTIONS

 B-CONTROL AUDIO BCA2000
The LINE STEREO button feeds the stereo signal of both The LED level meter displays either the input sum signal
line inputs ( ; see page 10) into the stereo input channel. post-A/D converter or the digital output signal pre-main
fader, depending on the position of the METER button .
If the LINE STEREO button is pressed, channel two becomes
a stereo channel, and the PAN control assumes the BALANCE The LEDs for channels 3 - 8 indicates signal presence in
function (see 4 above). This allows a maximum of three input the digital channels 3 - 8 (green SIG LEDs) or if levels are
signals (1 x mic/guitar and 1 x stereo) to be processed too high and may cause distortion (red CLIP LEDs).
simultaneously (see also ch. 4.1).
These status LEDs display the following:

3.1.2 Main/Monitor section MIDI IN, OUT A and OUT B illuminate if MIDI signals are
The 100-mm MAIN fader controls the output signal present at the respective connectors.
(MAIN OUT). USB FULL and USB HIGH LEDs indicate status and type of
The PHONES controls adjust the volume of connected the USB connection. The appropriate LED will remain
headphones. illuminated as long as your BCA2000 is connected to your
computer via USB (and the computer is powered up).
The CTRL ROOM control adjusts the volume of the control
room outputs . 3.1.3 Dynamics section
The PHONES outputs (individually adjustable; see 12) are Your BCA2000 features a combined noise gate/limiter (dynamics)
used for connecting headphones. You can listen to the section for the analog input signal. This section is located directly
main output, the input sum or the mix of both signals. pre-A/D converters.
The MONITOR button activates the direct monitoring The ON button activates the dynamics section.
function, and the DIR I/O LED lights up. When the button is
not pressed, auto monitoring is active. The NOISE GATE control adjusts the threshold or signal
level below which the noise gate is activated; signals below
With auto monitoring, switching between input and recorded tracks this level are muted. Turning the NOISE GATE control fully
is done automatically by your host software (audio sequencer/ counterclockwise (-¥) deactivates the noise gate.
software mixer). System-induced latencies occur between the
When the level of a signal falls below the threshold value,
recorded signal and computer playback. To avoid this, you can
this red THRESHOLD LED illuminates (noise gate active).
switch to DIRECT I/O during a recording session. This provides
you with delay-free signal routing (see also chapter 4.3). The limiter limits the signal to a maximum level, which can
LISTEN switches the monitor signal (control room and be adjusted. Turning the LIMITER control fully clockwise
phones) to mono (e.g. to check mono compatibility). deactivates the limiter.

DIM lowers the level of phones and control room outputs The LIMIT LED illuminates when the limiter is active.
by -20 dB.
+ If you only want to use the noise gate, set the
The MUTE button mutes the phones and control room LIMITER control to zero (fully clockwise). If you only
outputs. want to use the limiter, turn the NOISE GATE control
to - ¥ (fully counterclockwise).
The MONITOR BALANCE control adjusts the volume
balance between the input sum and the output signal (main
out). The control is only active if the MONITOR button
+ The noise gate/limiter section works in fixed
stereo, i.e. the left and right channels always
is pressed (direct monitoring).
function jointly. When processing two mono signals,
The AUDIO ROUTING diagram shows the audio signal these signals may be processed inaccurately.
flow of your B-CONTROL. The integrated LEDs show the
current selection of inputs and the status of buttons - .
The DIGITAL IN button lets you select a digital input source
(“COAXIAL” or “OPTICAL”).
OPTICAL OUT selects the format for the optical output
. Available choices are “ADAT” (eight-channel or four-
channel with “ADAT S/MUX”) and “2-CHANNEL”.
CH. 1-2/CH. 7-8 button: if OPTICAL OUT is set to
“2-CHANNEL”, the CH. 1-2/CH. 7-8 button lets you select
which USB output channels are played back via the digital
optical and coaxial outputs. If OPTICAL OUT is set to “ADAT”,
the CH. 1-2/CH. 7-8 setting only applies to the coaxial output.
The status LEDs for buttons to are located in the audio
routing diagram .
SAMPLE RATE LEDs: All digital inputs and outputs have
the same sample rate, which is determined by your host
software (unless you are synchronizing to an external
wordclock source). If you change the sample rate in the
software, the display on your BCA2000 automatically
switches to the new value. For example, if you select
44.1 kHz in your software, the 44.1 kHz LED illuminates. If
an external wordclock signal is connected, the DIGITAL
IN LED illuminates. If this external signal also has a sampling
rate of 44.1 kHz, both the 44.1 kHz and the DIGITAL IN
LEDs will illuminate.
The METER button lets you switch the LED level meters
( and ) between input and output signals.

3. CONTROL ELEMENTS AND CONNECTIONS 9

B-CONTROL AUDIO BCA2000
3.2 The rear panel

Fig. 3.2: The BCA2000’s connectors

The POWER switch turns your BCA2000 on and off. It MIDI interface. MIDI OUT B can be configured as a
should always be in the OFF position (out) when MIDI Thru in the control panel software.
connecting the unit to or disconnecting the unit from the
mains. Connect the CONTROL ROOM OUTS to your active studio
monitors or amplifier. These outputs deliver the same signal
+ Please note: The power switch does not completely as the headphone outputs.
separate your BCA2000 from AC power. If you plan
on not using your BCA2000 for a prolonged period LINE IN. The line inputs are supplied as 1/4" TRS connectors.
of time, please disconnect it from the mains by You can also connect unbalanced connectors (mono 1/4")
removing the power cable from the wall outlet. to these inputs.

A standard power socket is provided for connection to the ANALOG OUT: the MAIN OUTS 1/L and 2/R deliver the
mains. A matching power cable is included with the unit. MAIN OUT signal and are supplied as balanced 1/4" TRS
connectors. Outputs 3 - 6 are supplied as unbalanced
USB port. Connect your computer here. To get the most RCA (phono) connectors and can be used for connection
out of your B-CONTROL, your computer’s USB interface of LS, RS, center and LFE channels in surround applications.
should support High-Speed USB.
MIC inputs A and B are supplied as balanced XLR
/ DIGITAL IN/OUT: microphone inputs with switchable +48 V phantom power.
The OPTICAL digital input and output accept all standard The INSERT connectors for the XLR and line inputs allow
formats, including ADAT®. you to process input signals with outboard equipment
(compressors, EQs, effects processors and so on).
The COAXIAL (RCA) input and output accept digital audio Additional information on using these connections is found
signals in all standard formats. in chapter 6.2.

10 3. CONTROL ELEMENTS AND CONNECTIONS

 B-CONTROL AUDIO BCA2000
4. AUDIO ROUTING
The B-CONTROL gives you a plethora of routing options that are explained in detail in this chapter. The following illustration will give
you a general overview of your BCA2000’s audio signal flow. You will find a detailed signal flow diagram on an extra sheet attached
to this manual.

Fig. 4.1: Block diagram (overview)

4.1 Input routing 0RQR,QSXW 6WHUHR,QSXW

MIC B
Analog inputs: GUITAR (HI-Z) Line R
The input selectors ( , , and ) let you select the
Line Stereo
signal sources for the input channels. For the mono input channel,
you can select a microphone input (MIC A), the left line input MIC B
(Line L) or the front-panel high-impedance guitar input. If the MIC A Line R
GUITAR (HI-Z) button is pressed, the MIC/LINE button is Line Stereo
deactivated; mic or line inputs can no longer be selected. MIC B
Line L Line R
On the stereo input channel, you can select between a
microphone input B (MIC B) and the right line input (Line R). Line Stereo
The LINE STEREO button gives you yet another routing option, Table 4.1: Analog input combination options
directing both left and right line inputs ( ) into this channel,
which then operates as a stereo channel. In this case, the mono Insert connections are available for all mono inputs (XLR and
input channel can no longer carry the left line signal. However, ¼" connectors). This insert point for external signal processors
you can still select a microphone or guitar signal, so that a total of is located directly before (pre-) the B-CONTROL’s internal
3 signals (1 x mono, 1 x stereo) can be recorded simultaneously. processing and A/D converters. All selectable sources can be
processed in the mono input channel, while only inputs MIC B
and LINE R can be processed in the stereo input channel.

4. AUDIO ROUTING 11
B-CONTROL AUDIO BCA2000
If LINE STEREO is selected and both insert connectors are in 4.2 Output routing
use, only the right (LINE R) signal in the stereo input channel will
be processed via insert B. Insert A works only on the mono input On the output side, eight channels can also be transmitted via
channel and is not affected by the position of the LINE STEREO (High-Speed) USB. Various combinations of analog and digital
button. +48 V phantom power is available for the microphone outputs are available for playback.
inputs.
The stereo input sum signal for USB transmission is created in
The signals of both input channels are mixed together into a the mixer of your audio software. This signal is fed digitally
stereo input sum and fed into the two-channel A/D converter. through the optical and coaxial outputs. The same
Before this, the input sum signal can be processed by the internal signal is also available on the main analog outputs. Additionally,
dynamics processing section of your B-CONTROL. In this case, there are four analog RCA outputs that can be used for playing
the signal first goes to the noise gate and then to the limiter back subgroups, monitor mixes or surround signals.
(which effectively protects the A/D converter from clipping).
Use the OPTICAL OUT button to select a digital format for
Digital inputs: the optical output: ADAT or 2-CHANNEL.
The digital inputs are available as optical and coaxial connectors.
Both S/PDIF and AES/EBU formats are supported. The optical 4.2.1 Output routing in ADAT mode
input also accepts signals in ADAT ® format. Four-channel
In ADAT® mode (OPTICAL OUT button not pressed), eight
24-bit/96 kHz operation with ADAT® S/MUX is also possible. Use
channels can be played back in ADAT® format via the optical
the DIGITAL IN button to select the digital input source. The
output. The eight-channel signal is also available on the analog
selection is displayed in the audio routing diagram on the top of
outputs; signal/output assignments are shown in table 4.3. Use
your BCA2000.
the CH. 1-2/CH. 7-8 button to assign a signal source to the
If an ADAT® or an ADAT® S/MUX signal is connected to the coaxial output: either USB channel 1-2 or 7-8. The transmission
optical input, it is automatically recognized and activated, and the of 96-kHz signals is done per sample multiplexing via the ADAT®
red LED in the audio routing diagram illuminates. In this case, the output.
analog inputs are deactivated.
Combination of analog and digital inputs: 86% $'$7Š $'$7Š
2XW $QDORJ &RD[LDO 608;
The High-Speed USB connection transmits a maximum of eight N+] N+]
input channels. This can either be an eight-channel ADAT® signal
or a combination of digital and analog input signals. Due to the High-Speed Mode (480 Mbit/s)
BCA2000’s input architecture, these are the input sum signal 1 Main Out 1/L Digital L1 ADAT Out 1 S/MUX Out 1
and a two-channel digital input signal. This signal can either 2 Main Out 2/R Digital R1 ADAT Out 2 S/MUX Out 2
come from the optical or the coaxial input, and can be selected 3 Analog Out 3 - ADAT Out 3 S/MUX Out 3
using the DIGITAL IN switch . The digital format (AES/EBU or 4 Analog Out 4 - ADAT Out 4 S/MUX Out 4
S/PDIF) is selected in the control panel software. If an
5 Analog Out 5 - ADAT Out 5 -
ADAT® S/MUX stream is transmitted, a maximum of four channels
6 Analog Out 6 - ADAT Out 6 -
at 24 bit/96 kHz is available. The following table provides an
overview of the possible combinations: 7 - Digital L1 ADAT Out 7 -
8 - Digital R1 ADAT Out 8 -

86% $'$7Š $'$7Š608; Full-Speed Mode (12 Mbit/s)

1R$'$7Š ,Q6LJQDO ,Q6LJQDO Main Out 1/L ADAT Out 1
,Q ,Q6LJQDO 1 Digital L2 -
N+]  N+]  Analog Out 5 ADAT Out 5
High-Speed Mode (480 Mbit/s) Main Out 2/R ADAT Out 2
2 Digital R2 -
1 Analog In Sum L ADAT In 1 S/MUX In 1 Analog Out 6 ADAT Out 6
2 Analog In Sum R ADAT In 2 S/MUX In 2 ADAT Out 3
3 Analog Out 3 Digital L2 -
3 Digital In L2 ADAT In 3 S/MUX In 3 ADAT Out 7
4 Digital In R2 ADAT In 4 S/MUX In 4 4 Analog Out 4 Digital R2
ADAT Out 4
-
5 - ADAT In 5 - ADAT Out 8
6 - ADAT In 6 - 1) Sw itchable betw een USB Outs 1-2 and USB Outs 7-8
7 - ADAT In 7 - (High-Speed Mode) via button 23. Format selection (AES/EBU
8 - ADAT In 8 - or S/PDIF) via control panel software.
Full-Speed Mode (12 Mbit/s) 2) Switchable betw een USB Outs 1-2 and USB Outs 3-4 (Full-
1 Analog In Sum L ADAT In 1 - Speed Mode) via button 23. Format selection (AES/EBU or
2 Analog In Sum R ADAT In 2 - S/PDIF) via control panel software.
3 Digital In L2 ADAT In 3 -
Table 4.3: Output routing in ADAT® mode
4 Digital In R2 ADAT In 4 -
1) Optical digital input must be selected. Analog In Sum (input In Full-Speed USB operation, only 4 signals are transmitted per
sum) muted. USB, and there is no support for 96 kHz operation. The digital
2) Optical or coaxial digital input selectable. Format selection coaxial output always carries one stereo signal selectable with
(AES/EBU or S/PDIF) via control panel software. the CH. 1-2/CH. 7-8 button : when set to “CH. 1-2”, USB
channels 1 and 2 (Main Out Signal) are transmitted; when set to
Table 4.2: Input routing “CH. 7-8”, USB channels 3 and 4 are transmitted. These signals
are simultaneously fed to analog outputs 3 and 4. On the ADAT®
+ In Full-Speed USB operation, the USB interface can output, the four USB channels are doubly occupied to transmit
only transmit 4 audio channels. Transmitting audio the eight ADAT channels (see table 4.3).
signals with a sampling rate of 96 kHz is not
possible!

12 4. AUDIO ROUTING
 B-CONTROL AUDIO BCA2000
4.2.2 Output routing in 2-CHANNEL mode Recording:
In two-channel operation (OPTICAL OUT button pressed), all six Let’s assume you want to record vocals: connect your
analog outputs for USB channels 1 through 6 are available. microphone to one of the two XLR microphone inputs. If you’re
Simultaneously, the digital outputs are used for two additional using a condenser microphone that requires phantom power,
channels that are available at both the optical and the coaxial press the +48 V button . Set the level by slowly turning the
outputs. You can select between channels 1 and 2 (Main Out) or TRIM control to the right while you (or your singer) speak(s)
channels 7 and 8 via the CH. 1-2/CH. 7-8 button . The or sing(s) into the microphone. Keep an eye on the input-signal
transmission format in this mode can be S/PDIF, AES/EBU, level display . An incoming signal is indicated via the SIGNAL
DOLBY® DIGITAL or DTS®, provided the respective format is LED. The CLIP LED illuminates as soon as the input signal’s level
supported by the host software. is too high and could possibly cause audible distortion. We
incorporated a bit of headroom here so that the LED illuminates a
few dBs before clipping/distortion. Adjust the trim control so that
86%2XW $QDORJ2XW &RD[2SW2XW &RD[2SW2XW the CLIP LED only occasionally illuminates during the loudest
N+] N+] passages. The input signal now has an optimal level. Use the
channel fader to adjust the recording volume. Be sure not to
High-Speed Mode (480 Mbit/s) overdrive the A/D converters by carefully observing the level
1 Main Out 1/L Digital Out L1 Digital Out L1 meter and adjusting levels if necessary. Press the METER
2 Main Out 2/R Digital Out R1
Digital Out R1 button to show the level of the input sum signal. Since the input
3 Analog Out 3 - - sum signal has no level control of its own, you will have to
control the master volume with both channel faders when
4 Analog Out 4 - -
simultaneously recording several signals. Ideally, the CLIP LED
5 Analog Out 5 - - should never illuminate. Keep an eye on the correct input signal
6 Analog Out 6 - - level in your software. Activate the desired audio track in your
7 - Digital Out L1 Digital Out L1 software and start recording by pressing the record button.
8 - Digital Out R1 Digital Out R1
Noise Gate:
Full-Speed Mode (12 Mbit/s)
Use the noise gate to suppress hissing and other ambient noise
Main Out 1/L during signal pauses. Slowly turn the noise gate threshold control
1 Digital Out L2 -
Analog Out 5 clockwise until the noise has faded out; the microphone
Main Out 2/R should be on but the singer should not be singing. When turned
2 Digital Out R2 -
Analog Out 6 all the way to the left, the signal is not processed and the
THRESHOLD LED remains dark. As soon as the threshold value
3 Analog Out 3 Digital Out L2 - exceeds the noise level and signal processing kicks in, the
THRESHOLD LED illuminates. Set the threshold value very
4 Analog Out 4 Digital Out R2 - carefully so that vocal signals are not muted during fade-outs,
fade-ins or quiet passages. It may be necessary to fine-tune the
1) Sw itchable betw een USB Outs 1-2 and USB Outs 7-8 threshold setting with the vocalist singing (but not during the
(High-Speed Mode) via button 23. Format selection (AES/EBU recording!).
or S/PDIF) via control panel software.
Limiter:
2) Sw itchable betw een USB Outs 1-2 and USB Outs 3-4 (Full-
The limiter serves to limit the dynamics of the input signal. You
Speed Mode) via button 23. Format selection (AES/EBU or should always use the limiter if the level of the vocal varies
S/PDIF) via control panel software. extremely while setting levels. Adjust the limiter so that it kicks in
briefly before maximum level. To this end, turn the LIMITER control
Table 4.4: Output routing in two-channel mode
slowly from its “off” position (fully clockwise) counter-
clockwise until the LIMIT LED begins to illuminate during the loudest
In Full-Speed USB operation, the USB outputs are not only
signals.
reproduced on the main outputs but also in parallel via analog
outputs 5 and 6. USB outputs 3 and 4 are routed to analog Playback:
outputs 3 and 4 and to both digital outputs, provided the CH. 1-2/ If you want to add tracks or vocals to an already recorded piece
CH. 7-8 button is set to “CH.7-8”. When set to “CH. 1-2”, (overdub), you will want to hear the recorded tracks while
output channels 1 and 2 are routed to the digital outputs. The overdubbing. The monitor section of the B-CONTROL offers
position of this button affects both digital outputs. various options for this purpose. Generally, you will be listening
to the stereo sum signal of your software mixer. This signal is
routed to the main output and can be adjusted using the main
4.3 First steps with the B-CONTROL fader. It is also available at the headphone outputs and the
Connections (see also application examples in ch. 5): control room outputs .
Make sure the B-CONTROL is off before connecting it to other DIRECT monitoring:
equipment. Connect your microphones to the XLR inputs. Amplified During a recording, you probably not only want to hear the
instruments or other line-level equipment (keyboards, CD players, playback, but also the sound of what you are singing or playing.
external microphone preamplifiers etc.) are connected to the line In AUTO monitoring mode (MONITOR button not pressed),
inputs. If you want to record an electric guitar or other high- your audio software automatically switches between input and
impedance instrument (e.g. acoustic instruments with passive playback signals, i.e., as soon as you start recording in your
pickups), connect this instrument to the HI-Z input on the software, you can hear the input signal being recorded. When you
B-CONTROL’s front panel. switch to playback, you will only hear your recorded audio tracks.
If you want to process your signal with external compressors, In AUTO mode, system-specific latency times occur between
equalizers, de-essers or the like before recording it, connect the input signal and its playback from the computer. To avoid
these processors via the insert connections using commercially this, you can switch to DIRECT monitoring mode before a
available insert cables (see ch. 6.2). recording. This routes the input sum (pre-A/D converter) directly
Use the analog main outputs to connect a mastering recorder. to the control room and headphone outputs for monitoring.
To stay in the digital domain during mastering, you can also The signal remains in the analog section of the B-CONTROL while
connect a digital recorder via the coaxial or optical outputs. recording, resulting in latency-free monitoring. The mix between
Connect your studio loudspeakers or their amplifiers to the control the input signal and the playback signal from your computer can
room outputs. be adjusted using the MONITOR BALANCE control .

4. AUDIO ROUTING 13
B-CONTROL AUDIO BCA2000
ASIO Direct Monitoring:
For recording and playback purposes, the monitor signal can
also be switched in the software (the BCA2000 must be in
AUTO monitoring mode), provided your audio software supports
ASIO Direct Monitoring. For that purpose, the following settings
are available in the control panel software:
If you select Digital, the audio software switches the monitor
outputs of your B-CONTROL between the analog input sum
(record) and the main output signal (play); this depends on
whether the software is in recording or playback mode.
If Analog is selected, the monitor balance control is active during
a recording, and you can adjust the ratio between the playback
and input signals. During playback only the stereo mix from the
software is audible.

5. APPLICATIONS

5.1 Mobile studio

Fig. 5.2: Extended mobile studio

In this illustration, we have augmented the first example with a
microphone and a MIDI expander. To record acoustic instruments
or vocals in your audio software, connect your microphones
directly to the XLR inputs. If you’re using condenser microphones,
activate the +48 V phantom power. To record an electric guitar
or acoustic instrument with passive pickups, connect it to the
high-impedance guitar input located on the front panel.
Use the internal noise gate and compressor in your B-CONTROL
to process analog signals prior to A/D conversion. You can also
connect an external processor to the INSERT connectors
for signal processing using your favorite outboard gear.
The MIDI sound module is controlled via MIDI output A. The sound
module can be a GM/GS/XG MIDI expander, a synthesizer, a
Fig. 5.1: Mobile studio sampler, a drum machine or other MIDI sound source. The audio
outputs can be routed to the software mixer via the analog
Even if you work almost exclusively with software, you still stereo line inputs—or alternatively via the digital inputs, provided
need MIDI and audio interfaces to play your software synths via the sound module you are using has digital outputs.
a MIDI keyboard and record and listen to your music. The first
example shows a small setup for a mobile studio using the Listening during a recording session (monitoring) can be done
BCA2000 as such an interface. either digitally via the computer or latency-free using the direct
monitoring function of your BCA2000. The latter is extremely
Connect the BCA2000 to a free USB port on your computer/ helpful if the latency (computer-induced delay) is too high to
laptop. An older Full-Speed (1.1) USB interface will suffice unless allow comfortable, accurate monitoring for performing musicians/
you want to work at 24-bit/96 kHz (see also 1.2.1 and 1.2.2). singers.
You can play your software instruments live and/or record MIDI
tracks via the MIDI keyboard connected to the MIDI input. Monitoring
is achieved via headphones connected to one of the phones
outputs on the front panel of your BCA2000, while the volume is
adjusted using the corresponding PHONES control. Of course,
you can connect a second set of separately adjustable
headphones.

14 5. APPLICATIONS
 B-CONTROL AUDIO BCA2000
5.2 Project studio

Fig. 5.3: Project studio

This application example shows the layout of a typical small The Audio wiring also represents an expansion of the setup
project studio in which both software and hardware sound shown in fig. 5.2: the microphone and sound module signals are
generators are used. The major difference between this and the mixed together in stereo in the BCA2000 before they pass through
previous examples is the greatly expanded MIDI setup. The the A/D converter. Additionally, an extra sound generator, stereo
BCA2000 acts as a central link between your studio equipment player, effects unit or hardware sampler (as shown in the
and your computer. illustration) can be fed into the computer via one of the two digital
inputs on the BCA2000. This four-channel signal (A/D-converted
The illustrated MIDI connections allow the full gamut of MIDI stereo input sum + digital stereo signal) is simultaneously
functions to be utilized. Data from the MIDI controller and the MIDI transmitted to the computer via USB. This setup will also work
keyboard are fed into the computer via the MIDI input. To this end, fine without a High-Speed USB connection, as long as you are
a MIDI keyboard and the two BEHRINGER MIDI controllers BCF2000 satisfied with a maximum sample rate of 48 kHz.
and BCR2000 are connected in series. MIDI performance data
are sent to the sequencer via the keyboard. Any signal- A pair of active studio monitors was added for monitoring,
processing plug-ins as well as the software mixer are controlled connected to the control room outputs. Of course, two sets of
by the two MIDI controllers. headphones can still be connected and be controlled separately
from the control room signal. You can adjust the monitor signal in
The computer communicates separately with each MIDI expander several different ways (mute, dim, mono function, monitor in/out
(in this case: a sound module and a sampler) via 16 MIDI channels balance control etc.).
each.

5. APPLICATIONS 15
B-CONTROL AUDIO BCA2000
5.3 Professional studio

Fig. 5.4: Configuration of a professional studio

This is a professional-style studio setup with much more external DSP2024P) are all connected to the MIDI patchbay. The patchbay
equipment than in the previous examples. The MIDI network is is connected to the BCA2000 via MIDI IN and MIDI OUT A, which
also expanded; the entire studio’s MIDI equipment is connected in turn transmits the entire studio’s MIDI data through a maximum
to a central MIDI patchbay, which in turn is connected to the of 16 MIDI channels to your computer. Using the second MIDI
BCA2000. The audio inputs are augmented via an analog mixing output of your BCA2000 (OUT B), you can address additional
console that submixes all sound sources (microphones, MIDI devices using up to 16 additional MIDI channels.
keyboards, sound modules, samplers etc.) and feeds them into
the B-CONTROL as a stereo sum signal. The Audio wiring follows a submixing scheme: all microphones,
sound modules, effects processors and other gear such as
The MIDI equipment includes a MIDI keyboard and the two CD players, drum computers etc. are connected to an analog
BEHRINGER MIDI controllers BCF2000 and BCR2000 as input mixing console (here: BEHRINGER EURODESK SL3242FX-PRO).
devices. Similarly, the sampler and sound module A as well all The stereo sum signal from the mixer is fed into the line inputs of
MIDI-capable effects processors (here: ULTRACURVE PRO your BCA2000.
DEQ2496, V-VERB PRO REV2496 and VIRTUALIZER PRO

16 5. APPLICATIONS
 B-CONTROL AUDIO BCA2000
Alternatively, you can use a digital mixing console, whose active subwoofer are used here as main monitors. The control
digital stereo sum signal is routed to the computer via the digital room outputs are connected to the subwoofer; from there the
inputs on the B-CONTROL. If your digital console features an signal is passed on to the TRUTH loudspeakers.
ADAT® optical output (like the BEHRINGER DDX3216 with the
ADT1616 option), you can even transmit an eight-channel digital The same signal is also available via two sets of headphones
signal, provided your computer supports High-Speed USB. (e.g. for musicians), whereby their volume can be adjusted
separately.
In our example with an analog mixer, a DAT or a CD recorder is
connected to the digital connectors. Along with the analog stereo An additional pair of monitor speakers is connected to the main
sum signal from the console, four parallel input channels are outputs. The new BEHRINGER MS16 speakers that simulate the
transferred to the computer. listening experience of using smaller monitors are shown here.
Their volume is adjusted using the main fader. With such flexible
The Monitoring options are also considerably expanded in control options, you can better judge the various criteria of your
this setup; all options can be used simultaneously. A pair of mix in order to produce sonically accurate mixes that translate
BEHRINGER TRUTH B2030A active monitors with an additional well to various systems.

5.4 Basis recording session

Fig. 5.5: Basis recording session

5. APPLICATIONS 17
B-CONTROL AUDIO BCA2000
This recording setup is easily transportable, for example, to a 5.5 Multi-channel recording with
recording session at a friend’s or fellow musician’s apartment.
All you need is a laptop computer, the BCA2000, two to three
5.1 surround monitoring
headphones and/or a couple of active loudspeakers—plus of Illustration 5.6 shows how to do a multi-channel recording of a
course microphones and instruments as required. live performance and monitor it in 5.1 surround sound.
Theoretically, you can record an entire orchestra, big band, choir
There are several options for recording a guitar: you can either
or a play with a maximum of eight channels and monitor your
connect the guitar to the front-panel guitar input and process the
recording in 5.1 surround.
signal with the BCA2000’s dynamics section and/or your
computer’s plug-ins or, as shown in the illustration on the previous Recording: In our example, an orchestral performance is being
page, connect your guitar to a preamp (e.g. BEHRINGER V-AMP 2) recorded. Six microphones are being used: 5 studio condenser
and the preamp to the BCA2000’s line input. microphones and a so-called boundary microphone, which is
placed on the floor close to the orchestra. Of course, you can
Connect a vocal microphone to the MIC B input. You can also
also use other microphones and positioning as your experience
record an acoustic guitar or other acoustic instruments together
and/or preferences dictate.
with the vocals. In this case, use two microphones: one for the
instruments and the other one for the vocals. Two microphones are used as main stereo mics (L/R), while a
third, emphasizing the center signal, is placed near the conductor.
If you are using loudspeakers for monitoring, the sound
Two additional microphones (facing the audience) record the
engineer—armed with a laptop, the monitors and the BCA2000—
surround sound (surround left and surround right), while the
should be located in a separate room isolated from the musicians,
boundary microphone in the orchestra supports the low
in order to properly judge the recording without hearing the original
frequencies for the LFE or sub-bass channel.
sound, and to prevent feedback and ambient noise problems.
If the engineer uses a third set of headphones instead of the All microphone signals pass through a multi-channel mic preamp
monitors, everyone can be in the same room (although the and are converted into digital signals. The BEHRINGER
engineer will have to be very quiet!). In this case, the two sets of ULTRAGAIN PRO-8 DIGITAL ADA8000, shown here, generates
headphones for the musicians can be connected to one PHONES an eight-track ADAT® signal that is routed to the BCA2000 through
output using a Y-cable or adapter. The sound engineer’s the optical output. From there on, it is passed on to the computer
headphones are then connected to the other PHONES connector. via High-Speed USB.
Mix: To mix the live recording, hardware control elements to
control the software mixer can be very useful. In this illustration,
two BCF2000 MIDI controllers are used; connected to the
BCA2000 via MIDI, they control the software mixer during
recording/playback.
Monitoring/playback: All loudspeakers necessary for
5.1 surround monitoring can be connected directly to the
BCA2000’s analog outputs. Here, 5 active monitor loudspeakers
(shown: BEHRINGER TRUTH B2030A) and a subwoofer for the
LFE channel are used. You can also connect two additional
loudspeakers to the control room outputs, with which you can
monitor the main stereo signal. The main stereo signal is also fed
to both headphone outputs, allowing conductors, technical
assistants or sound engineers to monitor via headphones.
The loudspeaker setup shown here can also be used to listen to
the sound track from a DVD playing on your computer in surround
sound, provided your software features a DOLBY® DIGITAL or
DTS® decoder.

18 5. APPLICATIONS
 B-CONTROL AUDIO BCA2000

Fig. 5.6: Multi-channel recording with 5.1 surround monitoring

5. APPLICATIONS 19
B-CONTROL AUDIO BCA2000
Clock
6. CONNECTIONS AND FORMATS Many digital devices feature ® Sync, Clock or Wordclock
connections, usually in the form of coaxial BNC connectors.
When using two or more interconnected digital devices
6.1 Glossary simultaneously, they must be synchronized to the same clock to
Some technical terminology and acronyms that you may encounter ensure sample rate timing coherence. This synchronization is
while working with the BCA2000 are explained in this glossary. performed via the wordclock connector or the digital inputs, i.e.
Explanations of additional terminology can be found in our online through the digital audio signal.
glossary at www.behringer.com. You can find more information
Coder/Coding
about surround sound in the surround manual of our digital mixing
Synonymous to ® Encoder/Encoding.
console DDX3216, which can be downloaded from our website
free of charge at www.behringer.com. D/A converter
A D/A converter converts digital audio signals into analog audio
AC-3
signals. See also ® A/D Converter.
More widely known as ® DOLBY® DIGITAL, AC-3 is the most
popular surround format today. Six separate digital sound Decoder/Decoding
channels are data-compressed, encoded and ® decoded Decoding refers to “deciphering” a digital signal. If you wish to
(front left, front right, front middle/center, rear left, rear right and transmit or store a digital signal in compressed form (condense/
sub-bass channel, called ® LFE). reduce data quantity), you will have to ® encode it. To use this
signal later or at a different location, you will have to first decode
The BCA2000 can reproduce this data format through the digital
the signal. These processes generally occur automatically in
outputs, provided your audio software contains a DOLBY ®
digital audio devices/applications.
DIGITAL ® decoder. This can be an audio application that uses
a software decoder as a ® Plug-In or a DVD disc that is DOLBY® DIGITAL
reproduced on your computer’s DVD drive. A more popular name for the ® AC-3 surround format.
The six-channel music signal is then AC-3-encoded DTS®
(® Encoder), connected to a surround receiver with a digital The “Digital Theater Sound System” is similar in function to the 6-
input (or similar) via one of the digital outputs and decoded channel surround format ® DOLBY ® DIGITAL (® AC-3).
internally by the receiver’s AC-3 ® Decoder, and then reproduced Because DTS ® utilizes more moderate compression (data
on the six analog speaker outputs. reduction), it sounds somewhat better than AC-3 but requires
more storage space, e.g. on a DVD. This format is also supported
ADAT®
by the BCA2000 on its digital outputs.
The eight-channel digital audio format ADAT® owes its name to
the first 8-track digital recorder from Alesis. The ADAT® format Encoder/Encoding
has established itself as the multi-channel standard of choice, Encoding refers to “encrypting” a digital signal using an encoder.
generally supporting 44.1 and 48 kHz ® Sample Rates. See ® Decoder/Decoding.
88.2 and 96 kHz sample rates are also possible, but only with
four (instead of eight) digitally transmitted channels. This version Interface
is called ® S/MUX. General term referring to connection standards used for digital
data transfer.
Just a single optical cable (very thin optical fiber) is required to
transmit all eight (or four) channels of an ADAT® signal between The ® MIDI interface enables communication between digital
two different units using the optical input and output connectors. devices; a device with a MIDI interface generally has three MIDI
These connectors are sometimes called ® TOSLINK. connectors: MIDI In, Out and Thru. The BCA2000 has all three.

The BCA2000 supports both the standard ADAT® format with 8 “Audio interface” generally refers to both internal and external
channels (at 44.1 or 48 kHz sampling rate) and the S/MUX format computer sound cards. Internal are those that are built into the
with 4 channels (at 96 kHz sampling rate), both on the inputs and computer (usually PCI cards). External sound cards or audio
the outputs via the optical in/out connectors. interfaces are those that are usually connected to the computer
via ® USB or IEE1394 (also known as FireWire®), such as the
A/D converter BCA2000.
An A/D converter transforms an analog audio signal into a digital
signal, for example to enable recording on digital recorders such LFE
as CD/DAT/MD recorders or for recording and/or additional LFE (Low Frequency Effect; sometimes called Low Frequency
processing in a computer. Enhanced) refers to the ® Subwoofer or sub-bass channel that
reproduces the lowest frequencies of the surround soundtrack
All equipment utilizing digital technology that features standard (generally below 80 Hz). This ultra low-frequency information is
analog connectors (i.e. 1/4" or XLR) has an internal A/D ® D/A usually experienced as sound pressure rather than as identifiable
Converter. These can be synthesizers, digital mixing consoles, audio, especially in movie theaters. Even when the
almost all standard delay or multi-effects units or sound cards. LFE-subwoofer is located front and center, the signal is hard to
locate spatially, since frequencies this low are difficult for the
The quality of the converter is often expressed as a combination
human ear to process precisely—so instead of actually “hearing”
of its bit rate and its sampling frequency (e.g. 24-bit/96 kHz).
them, you “feel” them. The “.1” in the nomenclature of various
Generally speaking, the higher these two values, the better the
surround formats, such as 5.1, 6.1 and 7.1, refers to the LFE
resolution and therefore the better the audio quality. Older
channel. See also ® Surround.
CD players operate at 16-bit/44.1 kHz. The BCA2000 supports
the current DVD quality standard of 24-bit/96 kHz. Limiter
A limiter limits the dynamic spectrum of signal peaks. The maximal
AES/EBU
volume of a signal is defined by the ® Threshold value.
This professional digital stereo audio format gets its acronym
from the Audio Engineering Society and European Broadcasting Limiters are often used to avoid overdriving ® A/D Converters,
Union. Unlike the consumer format ® S/PDIF, AES/EBU signals because this can cause digital distortion, which—unlike slight
are usually transmitted using balanced cables with XLR analog distortion—is extremely unpleasant, clearly audible and
connectors, enabling extremely long cable runs without signal never desirable. The BCA2000 features an adjustable limiter for
degradation or additional noise. See also ® S/PDIF. the input sum directly pre- (before) ® A/D Converters.

20 6. CONNECTIONS AND FORMATS

 B-CONTROL AUDIO BCA2000
MIDI See also ® ADAT®. The BCA2000 supports this format as well
The Musical Instruments Digital Interface is a generic, non- as the standard ® ADAT® format on the optical digital inputs and
manufacturer-specific standard that enables communication outputs.
between electronic music instruments. If you connect the MIDI
Out (output) of the first device to the MIDI In (input) of the second S/PDIF
device, the second device can be “remotely controlled” by the The Sony/Philips Digital Interface Format is a consumer standard
first device. If device 1 is a MIDI keyboard and device 2 a keyless for transmitting digital audio. This unbalanced interface utilizes
tone generator (“MIDI expander”, sound module or similar), you ® RCA or optical ® TOSLINK connections.
can “play” device 2 from your MIDI keyboard, implement program From the point of view of data structure, this signal is very
changes or influence various sound parameters in real time. similar to the professional ® AES/EBU format. Therefore, you
Important! MIDI merely “controls” devices; absolutely no audio can transmit AES/EBU and S/PDIF signals using the same cables
data is transmitted! The above example will actually let you hear and connectors, although AES/EBU is generally transmitted via
the MIDI expander controlled by the MIDI keyboard only if the XLR connectors and balanced cables, enabling extremely long
audio outputs of your MIDI expander are also connected to a cable runs without signal degradation or interference. S/PDIF is
mixing console and/or amplifier and loudspeakers, or if usually used for data transmission over shorter distances with
headphones are connected to the expander’s headphone output. unbalanced cables.

Noise Gate The BCA2000 features both RCA and optical connectors; the
A noise gate suppresses noise and interference during signal control panel software provided with the unit allows you to
pauses by muting the signal path when the input signal falls select either the AES/EBU or the S/PDIF format.
below a predetermined ® Threshold value. A noise gate is Subwoofer
generally used to eliminate noise and crosstalk. Also known as Large bass loudspeaker designed to produce extremely low
gate, suppressor or noise suppressor, while the terms expander frequencies (generally between 20 and 150 Hz), which cannot
and downward expander refer to the type of circuitry or method be spatially located by the human ear and are thus usually
of suppression used. experienced as sound pressure rather than distinguishable audio
The BCA2000 features a noise gate for the analog input sum, signals. For this reason, subwoofers are often used in mono.
located directly pre- ® Limiter and pre- ® A/D-Converters. Subwoofers are commonly used in large P.A. systems (concerts
etc.) as well as in movie theaters etc.; also used in home
Phono ® Surround systems. See also ® LFE.
Also known as RCA, these unbalanced connections for analog
audio are primarily found in hi-fi applications but are also Surround
commonly used for the digital S/PDIF interface. The BCA2000 Since the introduction of DVD video, surround sound
features both, and they are labeled correspondingly. (three-dimensional room sound) has continuously gained in popularity
and importance. Surround audio formats have been around since
Plug-In the 1970s, for example the failed attempt at launching quadraphonic
A plug-in is an addition to a full-fledged computer program; these sound, or the Dolby® Surround format that was introduced in the
additions “embed” themselves into the main application and movie ‘Star Wars’ in 1978. Nowadays, ® AC-3 (® DOLBY® DIGITAL)
augment its functionality. Plug-ins are not stand-alone programs; and ® DTS® have established themselves as the prevalent standards.
they always need a “host” application to work. In this context, the 5.1 format is generally considered to be the
standard: 5 full-range loudspeakers plus one ® Subwoofer. The 5
Some of the more well-known plug-in formats in computer audio loudspeakers are divided into Left Front (generally called ‘L’), Right
technology are Direct X and VST interfaces. If an audio application Front (‘R’), Center (‘C’, mostly for dialog) as well as Left Rear or
supports, for example, the VST format, additional effects or Left Surround, (‘LS’) and Right Rear or Right Surround, (‘RS’).
virtual tone generators can be integrated into the main program
and be controlled, adjusted, played and recorded within the host The BCA2000 can play back all common surround formats via its
application. digital outputs, provided that correspondingly encoded signals
are available on your computer.
RCA
Another term for ® Phono connectors. Sync
Abbreviation for “Synchronization”. Connectors labeled “Sync”
Sample Rate often have the same function as ® Clock or Wordclock.
The sample rate is often considered an important quality criterion
for certain audio standards or ® A/D converters. For example, Threshold
CDs use a sample rate of 44.1 kHz. This means that an audio The level above or under which a signal processor becomes
signal is digitally sampled 44,100 times per second. With the active, i.e. a compressor, ® Limiter or ® Noise Gate.
® ADAT® format, 48 kHz is common, and with DVDs, 96 kHz is
the norm. TOSLINK
Term describing the optical (consumer) connector used for
The BCA2000 supports all of these standard sample rates. transmission of digital audio signals such as ® S/PDIF or
If you wish to produce a CD, it is recommended to select 44.1 ® ADAT®. A fiber-optic cable transmits the data between two
kHz for the entire production (all digital devices and all tracks in TOSLINK connectors. The BCA2000 has one TOSLINK or optical
the audio software). This will prevent possible quality loss due input and output connector each.
to subsequent sample rate conversions.
USB
With ® A/D converters, the sample rate needs to be roughly The Universal Serial Bus is the current standard for connecting
twice the frequency of the audio signal that is being digitalized. peripheral devices such as scanners, printers or audio
This means: With a sample rate of 44.1 Hz, the highest audio ® Interfaces to a computer.
frequency that is accurately reproduced is about 22,000 Hz.
This frequency lies above the highest frequency audible by a USB 1.1:
healthy human ear. Until recently, there was only the so-called USB 1.1 standard,
whose maximal data transmission rate was 12 Mbps (megabits
Sampling frequency per second). This places certain restrictions on audio applications.
See ® Sample Rate For example, a maximum of eight signals can be transmitted
simultaneously with a maximum resolution of 24 bits and 48 kHz
S/MUX ® Sample Rate: two inputs and six outputs or four inputs and
S/MUX (Sample Multiplexing) is a special ® ADAT® format that four outputs. At 24 bit/96 kHz only stereo recording/playback is
supports a ® Sample Rate of 96 kHz, with the limitation that only possible. An eight-channel transmission in one direction (to or
4 audio channels can be transmitted instead of the usual 8. from a computer) would also be problematic.

6. CONNECTIONS AND FORMATS 21

B-CONTROL AUDIO BCA2000
USB 2.0:
These issues were resolved with the next USB standard,
USB 2.0, due to a data transmission speed of 480 Mbps.
This new standard is every bit as powerful as the FireWire® or
IEE1394 interface, and enables the simultaneous transmission
of more than 16 audio channels to and from a computer with full
24-bit/96 kHz support.
Full-Speed USB & High-Speed USB:
Unfortunately, several manufacturers have begun referring to
both the older, slower USB 1.1 interface and the newer, much
faster USB 2.0 as USB 2.0. This causes a great deal of confusion
and often misleading. A printer, for example, that claims to have
a USB 2.0 interface, will not necessarily be able to process data
at 480 Mbps.
The new official distinction between the two standards is defined Fig. 6.2: 1/4" TS connector
as follows:
1) Full-Speed USB (the “old” USB 1.1) with 12 Mbps and 2) High-
Speed USB (introduced as USB 2.0) with 480 Mbps.
The suffixes “1.1” and most notably “2.0” should preferably not
be used anymore, since—due to misuse—they only cause
confusion and provide no real information about the interface’s
data transmission rate.
The BCA2000 supports both USB formats, Full-Speed and High-
Speed, and automatically detects which format your computer
uses, indicating this value both on the appropriate LEDs on the
BCA2000 and in the control panel software.
Wordclock
See ® Clock and ® Sync.

Fig. 6.3: 1/4" TRS connector

6.2 Audio connections
You will need many different types of cables for various
applications. The following illustrations show how these cables
should be wired. Please always use high-quality cables.
The B-CONTROL’s analog audio inputs are electronically balanced
to avoid hum problems.
Of course, you can also connect unbalanced equipment to the
balanced inputs/outputs of your BCA2000: either use mono plugs
or bridge the ring to the sleeve on TRS connectors (on
XLR connectors, bridge pin 1 to pin 3).

Fig. 6.4: 1/4" TRS connector for insert cables

6.3 Digital inputs and outputs

The B-CONTROL features coaxial and optical digital interfaces
that allow two-channel transmission of signals with a resolution
of up to 24 bits. The sample rate is not fixed and can be freely
selected in your host application. Sample rates of 44.1, 48 and
96 kHz are typical. Both interfaces support AES/EBU and S/PDIF
formats. Additionally, the optical interface (TOSLINK) enables
four-channel transmission in the ADAT ® S/MUX format
Fig. 6.1: XLR connections (at 96 kHz) as well as the standard eight-channel ADAT® format
(at 44.1 or 48 kHz). The DOLBY® DIGITAL and DTS® formats are
also supported on the outputs (both optical and coaxial), provided
your computer software (e.g. software DVD player) reproduces
the respective format.

22 6. CONNECTIONS AND FORMATS

 B-CONTROL AUDIO BCA2000
6.4 MIDI connectors
DIGITAL INPUTS
The MIDI connectors on the rear panel feature the internationally
Type Cinch coaxial
standard 5-pin DIN connectors. To connect the B-CONTROL to
Standard AES/EBU, S/PDIF
other MIDI devices, you need a MIDI cable. In general, commercially
Input impedance 75 W
available cables can and should be used. Their length should not
Nom. input signal level 0.2 - 5 V peak-to-peak
exceed 5 m (15 ft.).
MIDI IN: This connector is used for receiving MIDI data. Type TOSLINK optical
Standard AES/EBU, S/PDIF, ADAT®, S/MUX
MIDI OUT A/B: Data for controlling other MIDI equipment can be
sent through the MIDI outputs. DIGITAL OUTPUTS
MIDI THRU: MIDI OUT B can be configured as MIDI THRU in the Type Cinch coaxial
control panel software, allowing any data received via the Standard AES/EBU, S/PDIF, AC-3/DTS®
MIDI IN to be passed on without being modified. Impedance 75 W
Output signal level 2.5 V peak-to-peak

Type TOSLINK optical

7. SPECIFICATIONS Standard AES/EBU or S/PDIF, AC-3/DTS®, ADAT®,
S/MUX
AUDIO INPUTS
Microphone inputs (IMP Invisible Mic Preamp)
DIGITAL PROCESSING
Type XLR balanced Converter 24 Bit/96 kHz
Gain range +10 to +60 dB Sample rate 44.1 kHz, 48 kHz, 96 kHz
Frequency response 10 Hz - 200 kHz (-3 dB) Signal-to-noise ratio A/D: 100 dB typ.
Impedance approx. 2.2 kW (balanced) D/A: 102 dB
Max. input level +10 dBu (@ +10 dB Gain)
Signal-to-noise ratio 108 dB (112 dB A-weighted) USB INTERFACE
Distortion (THD+N) 0.005 % (0.004 % A-weighted) Type High-Speed 480 MBit/s
Full-Speed 12 MBit/s
Line inputs (2)
MIDI INTERFACE
Type ¼" TRS connector, balanced Type 5-pin DIN connectors: IN, OUT A,
Gain range -10 to +40 dBu OUT B/THRU
Impedance approx. 20 kW (balanced)
Max. input level +26 dBu (@ 0 dB Gain) POWER SUPPLY
Voltage 100 - 240 V~, 50/60 Hz
Guitar input (1) Power consumption max. 15 W
Type ¼" TS connector Fuse T 1 A H 250 V
Gain range -10 to +40 dBu Mains connection Standard IEC receptacle
Impedance approx. 1 MW
DIMENSIONS/WEIGHT
Max. input level +20 dBu (@ 0 dB Gain) Dimensions
(W x H x D) 13" x 4" x 11 4/5"
AUDIO OUTPUTS (330 mm x 100 mm x 300 mm)
Control Room L/R Weight approx. 5 lbs (2.25 kg)
Type ¼" TRS stereo
Impedance approx. 120 W
Signal-to-noise ratio 115 dB
Crosstalk -80 dB @ 1 kHz
Max. output level +20 dBu

Main Out
Type (Main 1/2, Cinch 3-6)
Impedance approx. 120 W
signal-to-noise ratio 100 dB
Crosstalk < -80 dBu @ 1 kHz
Max. output level +20 dBu

Headphones outputs (2)

Type ¼" TRS connector with separate
volume controls
Max. output level +20 dBu

INSERTS (2)
Type ¼" TRS connector, unbalanced

DYNAMIC SECTION
Noise Gate Threshold -¥ to 0 dB
Limiter Threshold -15 to 0 dB

BEHRINGER is constantly striving to maintain the highest professional

standards. As a result of these efforts, modifications may be made from
time to time to existing products without prior notice. Specifications and
appearance may differ from those listed or illustrated.

7. SPECIFICATIONS 23
B-CONTROL AUDIO BCA2000
8. WARRANTY
§ 1 OTHER WARRANTY RIGHTS AND NATIONAL LAW
1. This warranty does not exclude or limit the buyer’s statutory the product was originally developed and manufactured, this
rights provided by national law, in particular, any such rights against modification/adaptation shall not be considered a defect in
the seller that arise from a legally effective purchase contract. materials or workmanship. The warranty does not cover any
such modification/adaptation, irrespective of whether it was
2. The warranty regulations mentioned herein are applicable carried out properly or not. Under the terms of this warranty,
unless they constitute an infringement of national warranty law. BEHRINGER shall not be held responsible for any cost resulting
§ 2 ONLINE REGISTRATION from such a modification/adaptation.

Please do remember to register your new BEHRINGER equipment 3. Free inspections and maintenance/repair work are expressly
right after your purchase by visiting www.behringer.com excluded from this warranty, in particular, if caused by improper
(alternatively www.behringer.de) and kindly read the terms and handling of the product by the user. This also applies to defects
conditions of our warranty carefully. Registering your purchase caused by normal wear and tear, in particular, of faders,
and equipment with us helps us process your repair claims crossfaders, potentiometers, keys/buttons, tubes, guitar strings,
quicker and more efficiently. Thank you for your cooperation! illuminants and similar parts.

§ 3 WARRANTY 4. Damages/defects caused by the following conditions are not

covered by this warranty:
1. BEHRINGER (BEHRINGER International GmbH including all
BEHRINGER subsidiaries listed on the enclosed page, except s improper handling, neglect or failure to operate the unit in
BEHRINGER Japan) warrants the mechanical and electronic compliance with the instructions given in BEHRINGER user
components of this product to be free of defects in material and or service manuals.
workmanship for a period of one (1) year* from the original date
s connection or operation of the unit in any way that does
of purchase, in accordance with the warranty regulations
not comply with the technical or safety regulations applicable
described below. If the product shows any defects within the
in the country where the product is used.
specified warranty period that are not excluded from this
warranty as described under § 5, BEHRINGER shall, at its s damages/defects caused by force majeure or any other
discretion, either replace or repair the product using suitable new condition that is beyond the control of BEHRINGER.
or reconditioned parts. In the case that other parts are used which
constitute an improvement, BEHRINGER may, at its discretion, 5. Any repair or opening of the unit carried out by unauthorized
charge the customer for the additional cost of these parts. personnel (user included) will void the warranty.

2. If the warranty claim proves to be justified, the product will be 6. If an inspection of the product by BEHRINGER shows that the
returned to the user freight prepaid. defect in question is not covered by the warranty, the inspection
costs are payable by the customer.
3. Warranty claims other than those indicated above are expressly
excluded. 7. Products which do not meet the terms of this warranty will be
repaired exclusively at the buyer’s expense. BEHRINGER will
§ 4 RETURN AUTHORIZATION NUMBER inform the buyer of any such circumstance. If the buyer fails to
submit a written repair order within 6 weeks after notification,
1. To obtain warranty service, the buyer (or his authorized dealer)
BEHRINGER will return the unit C.O.D. with a separate invoice
must call BEHRINGER (see enclosed list) during normal business
for freight and packing. Such costs will also be invoiced
hours BEFORE returning the product. All inquiries must be
separately when the buyer has sent in a written repair order.
accompanied by a description of the problem. BEHRINGER will
then issue a return authorization number. § 6 WARRANTY TRANSFERABILITY
2. Subsequently, the product must be returned in its original This warranty is extended exclusively to the original buyer
shipping carton, together with the return authorization number to (customer of retail dealer) and is not transferable to anyone
the address indicated by BEHRINGER. who may subsequently purchase this product. No other person
(retail dealer, etc.) shall be entitled to give any warranty promise
3. Shipments without freight prepaid will not be accepted.
on behalf of BEHRINGER.
§ 5 WARRANTY REGULATIONS
§ 7 CLAIM FOR DAMAGES
1. Warranty services will be furnished only if the product is Failure of BEHRINGER to provide proper warranty service shall
accompanied by a copy of the original retail dealer’s invoice. not entitle the buyer to claim (consequential) damages. In no
Any product deemed eligible for repair or replacement under the event shall the liability of BEHRINGER exceed the invoiced value
terms of this warranty will be repaired or replaced. of the product.
2. If the product needs to be modified or adapted in order to * Customers in the European Union please contact BEHRINGER
comply with applicable technical or safety standards on a national Germany Support for further details.
or local level, in any country which is not the country for which

Technical specifications and appearance subject to change without notice. The information contained herein is correct at the time of
printing. The names of companies, institutions or publications pictured or mentioned and their respective logos are registered
trademarks of their respective owners. Their use neither constitutes a claim of the trademarks by BEHRINGER nor affiliation of the
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either wholly or in part upon any description, photograph or statement contained herein. Colours and specification may vary slightly
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ALL RIGHTS RESERVED. © 2006 BEHRINGER International GmbH,

Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Muenchheide II, Germany.
Tel. +49 2154 9206 0, Fax +49 2154 9206 4903

24 8. WARRANTY