Rain Dance Stereo Amplifier EX1200 User Guide

User’s Manual  
Version 1.1 April 2001  
 
ULTRABASS PRO EX1200  
FOREWORD  
Dear Customer,  
Welcome to the team of ULTRABASS PRO users and thank you very much for expressing your confidence in  
BEHRINGER products by purchasing the EX1200.  
It is one of my most pleasant tasks to write this letter to you, because it is the culmination of many months of  
hard work delivered by our engineering team to reach a very ambitious goal: making an outstanding device that  
will become a standard tool used by studios and PA companies. The task to design the  
ULTRABASS PRO certainly meant a great deal of responsibility, which we assumed by focusing on you, the  
discerning user and musician. It also meant a lot of work and night shifts to accomplish this goal. But it was  
fun, too. Developing a product usually brings a lot of people together, and it’s a great feeling, when everybody  
who participated in such a project can be proud of what we’ve achieved.  
It is our philosophy to share our joy with you, because you are the most important member of the BEHRINGER  
family. With your highly competent suggestions for new products you’ve greatly contributed to shaping our  
company and making it successful. In return, we guarantee you uncompromising quality (manufactured under  
ISO9000 certified management system) as well as excellent technical and audio properties at an extremely  
favorable price. All of this will enable you to fully unfold your creativity without being hampered by budget  
constraints.  
We are often asked how we can make it possible to produce such high-grade devices at such unbelievably low  
prices. The answer is quite simple: it’s you, our customers! Many satisfied customers mean large sales  
volumes, enabling us to get better conditions of purchase for components. Isn’t it only fair to pass this benefit  
back to you? Because we know that your success is our success too!  
I would like to thank all people whose help on “Project ULTRABASS PRO” has made it all possible. Everybody  
has made very personal contributions, starting from the designers of the unit via the many staff members in our  
company to you, the user of BEHRINGER products.  
My friends, it’s been worth the trouble!  
Thank you very much,  
Uli Behringer  
3
 
ULTRABASS PRO EX1200  
ULTRABASS PRO  
Professional, multi-purpose Bass Sound Enhancement system for stage and studio applications  
s
Digital subharmonic synthesizer adds unbelievable bass power to your sound system  
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Perfect for discotheques, dance clubs, cinemas, theatres, sport & aerobic studios and your Hi-Fi system  
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Digital synthesis based on waveform analysis generates ultra-low frequencies for driving subwoofers  
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Releases untapped sonic resources and adds power to instruments, vocals and mixed program material  
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Waveform processor musically restores low frequencies normally lost in the recording process  
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Built-in limiter protects against low-frequency speaker over-excursion  
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Dynamic punch control adds breathtaking kick bass to your program material  
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Bass mode control allows you to fade over from “ultra-low” to “punchy” bass sounds  
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Subharmonics function allows you to choose between low and ultra-low subharmonics  
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Separate subwoofer output to connect a separate subwoofer system  
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Incorporates a switchable x-over to split off dangerous low frequencies from your club system  
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Precision output level and gain reduction LED displays provide clear visual indication of operation  
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Servo-balanced gold-plated XLR and 1/4" TRS inputs and outputs  
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Ultra low-noise 4580 audio operational amplifiers for outstanding sound performance  
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High-quality detented potentiometers and illuminated switches  
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Manufactured under ISO9000 certified management system  
4
 
ULTRABASS PRO EX1200  
TABLE OF CONTENTS  
1. INTRODUCTION.....................................................................................................................6  
1.1 The Design Concept........................................................................................................................ 6  
1.2 Before You Begin ............................................................................................................................ 6  
1.3 Control Elements ............................................................................................................................ 8  
1.3.1 Front Panel ........................................................................................................................... 8  
1.3.2 Rear Panel .......................................................................................................................... 10  
2. APPLICATIONS .....................................................................................................................10  
2.1 Systems without Subwoofer .......................................................................................................... 10  
2.2 Systems with Subwoofer................................................................................................................11  
2.3 Multiway Active System ................................................................................................................ 12  
2.4 The ULTRABASS PRO in a Hi-Fi System ..................................................................................... 12  
3. TECHNICAL BACKGROUND ..............................................................................................13  
3.1 The Integrated Frequency Crossover ............................................................................................. 13  
3.2 The Integrated Limiter.................................................................................................................... 13  
4. INSTALLATION .....................................................................................................................14  
4.1 Audio Connections ........................................................................................................................ 14  
5. SPECIFICATIONS..................................................................................................................15  
6. WARRANTY ...........................................................................................................................16  
5
 
ULTRABASS PRO EX1200  
1. INTRODUCTION  
Thank you very much for expressing your confidence in BEHRINGER products by purchasing the  
ULTRABASS PRO EX1200. The BEHRINGER ULTRABASS PRO is a completely new subharmonic  
synthesizer based on digital technology for the generation and processing of low frequencies.  
+
This manual first describes the terminology used, so that you can fully understand the  
ULTRABASS PRO and its functions. Please read the manual carefully and keep it for future  
reference.  
1.1 The Design Concept  
Why is there a need for a subharmonic synthesizer?  
In many recordings, the low-frequency spectrum has been filtered deliberately or gets lost somewhere in the  
transmission chain. In most cases, the recording medium is characterized by a limited dynamic range and  
frequency response. Reproduction quality may also be adversely affected by a low-performance speaker  
system. Thus, tape material, records and broadcast transmissions for example soon reach their limits, in  
terms of frequency and amplitude range. Vital bass frequencies are therefore not reproduced. Very often, the  
low frequencies are filtered deliberately to facilitate reproduction via small loudspeakers found in portable  
radios, car systems etc. The recording lacks the essential bass emphasis and the resulting sonic image lacks  
power.  
More bass power with the BEHRINGER ULTRABASS PRO  
In contrast to simple bass boosting, the ULTRABASS PRO generates additional subharmonics, i.e., musically  
relevant frequencies one or two octaves below the lowest frequency in the signal. This expands the frequency  
spectrum both naturally and musically. Contrary to conventional designs, the ULTRABASS PRO is not a  
so-called “bass booster” simply raising the lower frequency band in level, but uses completely new circuits  
based on digital technology which filter specific bass frequencies from the program material and feed them to  
the subharmonic synthesizer. With the aid of digital frequency shifting, the circuitry produces a new frequency  
spectrum that is enlarged towards the bass end, with the signal shape of the generated low-range frequencies  
being accurately synthesized on the original wave form. The result is a “dry” and exactly defined low-frequency  
emphasis, without any “booming” or other disturbing side effects.  
Protect your system with the integrated limiter  
Bass frequencies provide the highest energy yield within the entire frequency spectrum. When reproducing  
composite signals, both the power amplifiers and the loudspeakers are under extreme duress. Since  
conventional bass frequency boosters do not compensate for this, the system is often overloaded with  
disastrous results.  
The ULTRABASS PRO incorporates the highly respected BEHRINGER limiter, which prevents clipping of the  
generated bass signal in the subsequent system and thus protects it against overloading and damage. You  
can perfectly limit the levels of bass generated by the EX1200 and the resulting maximum displacement of the  
loudspeaker diaphragm, to fit the size and power rating of the system.  
All-purpose application with the integrated crossover  
The ULTRABASS PRO features two operational modes: in FULL RANGE mode the newly generated bass  
frequencies are added to the original signal and are reproduced by the standard system. In 70 Hz SPLIT mode,  
however, all frequencies below 70 Hz are removed, which clearly reduces the stress put on the system. The  
actual bass frequencies are routed via the separate subwoofer output to a special low-range loudspeaker/  
amplifier setup.  
Turn your system into a “power station”  
It is unbelievable how the ULTRABASS PRO adds power to your system. Whether it is the audio system in  
discotheques and dance clubs, cinemas, theatres, PA systems, broadcast and TV stations, aerobic and  
sports studios or simply your home stereo system, the ULTRABASS PRO will give you a new audio  
experience. We are sure that you will enjoy your new BEHRINGER ULTRABASS PRO!  
1.2 Before You Begin  
Your BEHRINGER ULTRABASS PRO was carefully packed in the factory and the packaging is designed to  
protect the unit from rough handling. Nevertheless, we recommend that you carefully examine the packaging  
and its contents for any signs of physical damage, which may have occurred during transit.  
6
1. INTRODUCTION  
 
ULTRABASS PRO EX1200  
+
If the unit is damaged, please do not return it to BEHRINGER, but notify your dealer and the  
shipping company immediately, otherwise claims for damage or replacement may not be  
granted. Shipping claims must be made by the consignee.  
The BEHRINGER ULTRABASS PRO fits into one standard 19" rack unit of space. Please allow at least an  
additional 4" depth for the connectors on the back panel.  
Be sure that there is enough space around the unit for cooling and please do not place the ULTRABASS PRO  
on high temperature devices such as power amplifiers etc. to avoid overheating.  
+
Before you connect your ULTRABASS PRO to the mains, please make sure that your local  
voltage matches the voltage required by the unit!  
The fuse holder on the female mains connector has 3 triangular markers, with two of these triangles opposing  
each other. Your ULTRABASS PRO is set to the operating voltage printed next to these markers, and can be  
set to another voltage by turning the fuse holder by 180°. CAUTION: this instruction does not apply to  
export models exclusively designed, e.g. for 115 V operation!  
The mains connection of the ULTRABASS PRO is made by using the enclosed mains cable and a standard  
IEC receptacle. It meets all of the international safety certification requirements.  
+
Please make sure that all units have a proper ground connection. For your own safety, never  
remove or disable the ground conductor of the unit or of the AC power cable.  
As standard, the BEHRINGER ULTRABASS PRO is installed with electronically servo-balanced inputs and  
outputs. The circuit design features automatic hum rejection for balanced signals, permitting trouble-free  
operation even at the highest operating levels. Externally induced power-line hum, etc. is thus suppressed  
effectively. The automatic servo function recognizes the presence of unbalanced connectors and adjusts the  
nominal level internally to avoid level differences between the input and output signals (6 dB correction).  
You will find additional information in chapter 4 “INSTALLATION”.  
1.3 Control Elements  
Fig. 1.1: The ULTRABASS PRO  
The BEHRINGER ULTRABASS PRO provides 5 illuminated push-button switches, 6 rotary controls, and 4  
level displays. The ULTRABASS PRO is designed as a stereo processor and is therefore not suited to process  
two different signals. The front of the ULTRABASS PRO is divided in three sections, each with its own function.  
1. INTRODUCTION  
7
 
ULTRABASS PRO EX1200  
1.3.1 Front Panel  
Fig. 1.2: ULTRABASS PRO front panel  
POWER switch. This switch puts the ULTRABASS PRO into operation.  
Digital Subharmonic Processor Section  
POWER LED. This LED lights up to indicate that the unit is connected to a mains outlet and that the  
unit is switched on.  
With the PROCESS switch the signal to the subharmonics generator is switched on or off. If set to OUT,  
the unit is in bypass mode. The crossover remains active but no harmonics are added to the signal i.e.,  
the bass effect signal is neither sent to the main outputs nor to the subwoofer.  
+
The X-OVER function and the SATELLITE LEVEL control are still active in bypass mode  
(PROCESS OFF).  
FREQUENCY control. This control governs the highest frequency which is sent to the digital harmonics  
processor. It thus affects the frequency range in which the ULTRABASS PRO works. This is one of the  
main controls to influence the sound of the unit.  
The DYNAMIC PUNCH control sets the threshold for the digital frequency shifter of the ULTRABASS  
PRO. Signals below the threshold are not processed. With this control it is possible to prevent the  
processing of rumble which is not part of the music signal. It is also possible to add depth and punch  
just to the bass drum for instance.  
ACTIVE LED. This LED lights up as soon as subharmonics are being generated. This depends on the  
DYNAMIC PUNCH control settings.  
The LOW/ULTRA-LOW switch sets the subharmonic processor to produce either normal low subharmonics  
(1 octave) or ultra-low subharmonics (2 octaves). Use the ULTRA-LOW setting only if the used speaker  
system can handle extremely low frequencies.  
You can adjust the punch or warmth of the generated low frequencies with the BASS MODE control. If  
the control is turned fully counterclockwise (ULTRA-LOW), only the produced subharmonics are sent to  
the subwoofer and added to the satallite output (ULTRABASS switch in satellite section “ON”). As you  
turn the control clockwise (PUNCH), the original low frequencies of the program material are gradually  
added to the subharmonics, which gives the bass more power and “punch”. The optimum setting largely  
depends on the program material and your personal sound perception. Never hesitate to experiment!  
BASS LEVEL control. With this control you can determine the amount of added bass frequencies,  
within a range from 0 (full attenuation) to 6 (max. effect). Please observe the power rating of your system!  
BASS LEVEL meter. The amount of generated bass signal is shown by this meter.  
Bass limiter section  
The LIMITER IN / OUT switch activates or deactivates the bass limiter. The limiter’s task is to protect  
the loudspeaker system against overloading. In particular, if the system has no separate subwoofer, the  
level peaks need to be controlled so that extreme diaphragm displacement does not lead to speaker  
damage.  
THRESHOLD control. The limiter limits the level of the newly generated bass signal to the adjusted  
value, the threshold control can be set within a range from 0 dB to “OFF” (limiter off).  
+
The normal signal is not limited! To prevent damage to your speakers the same safety margin  
with respect to the output level should be observed as with normal operation without the  
ULTRABASS PRO.  
8
1. INTRODUCTION  
 
ULTRABASS PRO EX1200  
GAIN REDUCTION meter. This meter indicates that the limiter has been put into operation and is  
controlling the gain reduction. In this case, it might be wise to reduce the bass level with the LEVEL  
control. It is also possible to use the limiter to create a desired effect. With the correct settings it is  
possible to create a so-called loudness effect: At low volumes the ULTRABASS PRO creates additional  
harmonics and extends the range of the used system and at higher volumes the limiter limits the strain  
of the created subharmonics to free the maximum sound pressure level of the system.  
Satellite section  
The X-OVER function acts as a highpass filter in the stereo main path for use in combination with a  
subwoofer. The activated highpass filter prevents the main speakers (now operating in a multiway active  
system) from being overloaded by the generated low frequencies. If the X-OVER switch is set to SPLIT,  
all low-range frequencies below 70 Hz are filtered in the stereo main path, and the newly generated low  
frequencies are exclusively routed to the subwoofer via the subwoofer output.  
However, if the X-OVER function is switched to FULL RANGE, the generated subharmonics can be  
added to the original stereo signal by depressing the ULTRABASS switch. The low-frequency signal  
remains present at the subwoofer output.  
ULTRABASS switch. With the ULTRABASS switch the generated subharmonics can be led to the  
satellite loudspeakers. This is usefull to create a smooth transition from subwoofer to satellite, or if no  
subwoofer is used.  
SATELLITE LEVEL control. This is the level control for the main speaker system in full range operation  
and for the satellites in split (x-over) operation.  
+
The level of added bass-frequencies present at the satellite output is not dependent on the  
setting of the SATELLITE LEVEL control. Only the setting of the BASS LEVEL controls the level  
of subhamonics.  
LEFT / RIGHT OUTPUT LEVEL meter. With these level meters the left and right output level of the  
ULTRABASS PRO can be monitored.  
As mentioned before the ULTRABASS PRO has several controls which influence the sound characteristics of  
the unit. The FREQUENCY, DYNAMIC PUNCH, SUBHARMONICS and BASS MODE controls change the  
sound of the ULTRABASS PRO. The other controls govern how much of the effect is audible and how the unit  
is connected. Please take the time to play around with the ULTRABASS PRO at home or “off line” to get the  
feel of the possibilities it offers.  
1.3.2 Rear Panel  
Fig. 1.3: The rear panel layout of the ULTRABASS PRO  
MAINS CONNECTION. Use the enclosed power cord to connect the unit to the mains. Please also note  
the instructions given in the “INSTALLATION” chapter.  
FUSE HOLDER / VOLTAGE SELECTOR. Please make sure that your local voltage matches the  
voltage indicated on the unit, before you attempt to connect and operate the ULTRABASS PRO. Blown  
fuses may only be replaced by fuses of the same type and rating.  
SERIAL NUMBER. Please take the time to have the warranty card filled out completely by your dealer,  
and return it within 14 days after the date of purchase, so as to be entitled to benefit from our extended  
warranty.  
AUDIO IN. These are the audio inputs of the ULTRABASS PRO. Available on either balanced or  
unbalanced TRS jacks or XLRs.  
1. INTRODUCTION  
9
 
ULTRABASS PRO EX1200  
AUDIO OUT. These are the audio outputs of the ULTRABASS PRO. Also on either balanced or  
unbalanced TRS jacks or XLRs.  
SUBWOOFER OUT. This is the Subwoofer output for the connection of the subwoofer system. Again on  
either balanced or unbalanced TRS jacks or XLRs.  
2. APPLICATIONS  
2.1 Systems without Subwoofer  
Fig. 2.1: The ULTRABASS PRO in a system without subwoofer  
In this standard application, the ULTRABASS PRO is inserted between the mixer or the signal source and the  
power amplifier. The newly generated low-range frequencies are added to the original signal and are reproduced  
by the existing system.  
Connect the ULTRABASS PRO to your system and set up the controls and switches as follows:  
Control  
Process  
Position  
OUT  
Frequency  
Dynamic Punch  
Subharmonics  
Bass Mode  
Bass Level  
Limiter  
120  
0
LOW  
CENTER  
0
IN  
Threshold  
X-Over  
OFF  
FULL RANGE  
Ultrabass  
OUT  
0
Satellite Level  
Tab. 2.1: Start up settings  
Now, depress the PROCESS switch and turn the DYNAMIC PUNCH control clockwise until the ACTIVE LED  
lights up. Now turn the BASS LEVEL up until the desired low-range frequencies can be heard. Turn the  
THRESHOLD control in the Bass Limiter Section counter-clockwise until the first two LEDs of the gain  
reduction meter light up. By using the SUBHARMONICS switch and the BASS MODE control you can now  
adapt the bass sound to the program material and to your personal sound perception. With the FREQUENCY  
control you adjust the highest frequency of the program material which is sent to the subharmonic synthesizer.  
It thereby also governs the highest frequency reproduced by the subwoofer if one is attached.  
+
Generally speaking, the setting of the FREQUENCY and DYNAMIC PUNCH controls is  
10  
2. APPLICATIONS  
 
ULTRABASS PRO EX1200  
dependent on the program material. The setting of the SUBHARMONICS switch is dependent  
on the capabilities of the loudspeaker or subwoofer system. The setting of the BASS MODE  
control is dependent on you, the listener.  
Most important rule is to take familiar material and experiment at home or before actually use to get the feel of  
the ULTRABASS PRO and what the unit can do for you.  
2.2 Systems with Subwoofer  
Fig. 2.2: The ULTRABASS PRO in a system with subwoofer  
In this application, the low-range frequencies are reproduced both by the main speakers and by an additional  
subwoofer. A subwoofer is a special loudspeaker for the transmission of low-frequency signals and serves as  
an additional loudspeaker to improve the system response in the bass range.  
For this purpose, the ULTRABASS PRO is equipped with an additional subwoofer output, which only provides  
the original low-range frequencies and the newly generated subharmonics within a frequency range from 15 to  
90 Hz. The subwoofer output is a mono output, since low-frequency signals contain virtually no directional  
information. Nevertheless, the subwoofer should be positioned centrally to guarantee constant loudness in the  
dispersion area.  
Since in this application the entire low-frequency range is also reproduced by the main speakers, it should be  
ensured that the low-range loudspeakers are not overloaded.  
+
When using a subwoofer with full range speakers, problems can rise in which the speakers  
and the subwoofer cancel each other out at certain frequencies and positions. To check this,  
walk around the room and listen to the difference between X-OVER switched on and off.  
2.3 Multiway Active System  
We talk of an active system, if the frequency spectrum is split up into several different ranges, and if specific  
loudspeakers are used to reproduce just one selected range from the audio spectrum. Active operation is  
particularly useful in large-scale sound systems found in discotheques, cinemas and theatres etc. The  
following illustration shows the basic setup for multiway active operation.  
The signal is routed from the mixer (or from any other sound source) to the ULTRABASS PRO. By activating  
the X-OVER switch, all frequencies below 70 Hz are filtered out and are reproduced by a subwoofer. The  
remaining signal is routed via the satellite outputs of the ULTRABASS PRO to the subsequent crossover  
networks of the active system, where it is split up into a low and high-frequency range. The crossover is used  
to split up the remaining frequency bands even further, and can be omitted in less complex systems using  
passive crossovers.  
2. APPLICATIONS  
11  
 
ULTRABASS PRO EX1200  
Fig. 2.3: The ULTRABASS PRO in a satellite system  
2.4 The ULTRABASS PRO in a Hi-Fi System  
The following illustration shows how the ULTRABASS PRO is connected to your hi-fi stereo system. If  
possible, insert the unit into the tape monitorpath, which allows for controlling the sound of all signal sources  
connected to the inputs of the amplifier.  
Alternatively some integrated amplifiers have special preamp out / power amp in connectors. It is also possible  
to connect the ULTRABASS PRO between your CD, cassette player, etc. and your amplifier. In all cases you  
will need four cinch-to-jack cables.  
Fig. 2.4: The ULTRABASS PRO in a hi-fi system  
3. TECHNICAL BACKGROUND  
3.1 The Integrated Frequency Crossover  
The BEHRINGER ULTRABASS PRO features an integrated crossover network which permits extraction of the  
bass frequencies. In 70 Hz SPLIT mode, all frequencies below 70 Hz are removed from the two main paths,  
with a slope of 12 dB/octave. The system is thus operated in a multiway active system. Via the separate  
subwoofer output, all bass frequencies can now be routed to a special low-frequency loudspeaker (subwoofer).  
When in full range mode, the subwoofer output can be used to enhance the bass produced by the left and right  
channel speakers.  
+
When using a subwoofer with full range speakers, problems can arise in which the speakers  
12  
3. TECHNICAL BACKGROUND  
 
ULTRABASS PRO EX1200  
and the subwoofer cancel each other out at certain frequencies and positions. To check this,  
walk around the room and listen to the difference between X-OVER switched on and off. It is  
therefore possible to hear more bass without a subwoofer or by using the crossover function  
even with full range speakers.  
3.2 The Integrated Limiter  
Devices of this kind produce bass frequencies with hazardous levels, which can overload or damage your  
loudspeaker systems. For this reason, the ULTRABASS PRO integrates a level limiter which monitors and if  
necessary reduces the low-frequency level of the generated output signal. The limiter controls both temporary  
signal peaks to avoid distortion, as well as constant overloading to prevent the speakers from being damaged.  
If excessive signal levels are detected, the limiter follows the THRESHOLD setting and reduces the output  
signal amplitude to a value below distortion. The setting of this control depends on numerous factors, such as  
level and low-frequency contents in the program material, overall level, the amplifiers capacity, the loudspeakers  
power rating etc. As a rule of thumb it is recommended to adjust the THRESHOLD control so that the first two  
LEDs of the gain reduction meter light up. The setting should be checked by ear.  
In addition to its function as a protection device, the limiter can also be used as an effect to provide constant  
power. For this purpose, the THRESHOLD control is adjusted in such a way that the limiter responds all the  
time and thus provides a constant low-frequency level, without losing the dynamic punch of the program  
material. In this setup, it should be observed that a correct ratio between the BASS LEVEL and THRESHOLD  
controls is maintained.  
+
Be careful when using the ULTRABASS PRO: excessive use can damage your loudspeaker  
system. The low-frequency signals produced by the ULTRABASS PRO can highly stress both  
amplifier and low-frequency speakers. So, do not exaggerate the effect, use the integrated  
limiter and observe the power rating of your system!  
4. INSTALLATION  
4.1 Audio Connections  
The audio inputs and outputs on the BEHRINGER ULTRABASS PRO are fully balanced. If possible, connect  
the unit to other devices in a balanced configuration to allow for maximum interference immunity.  
+
Please ensure that only qualified persons install and operate the ULTRABASS PRO. During  
installation and operation the user must have sufficient electrical contact to earth. Electro-  
static charges might affect the operation of the ULTRABASS PRO!  
You will find further information in chapter 1.2 Before you begin.  
4. INSTALLATION  
13  
 
ULTRABASS PRO EX1200  
Unbalanced use of  
Balanced use of  
mono 1/4" jack plugs  
stereo 1/4" jack plugs  
Tip =  
Signal  
Tip =  
hot (+ve)  
Ring =  
cold (-ve)  
Sleeve =  
Ground / Shield  
Sleeve =  
Ground / Shield  
Tip  
Tip  
Ring  
Sleeve  
Sleeve  
Strain relief clamp  
Strain relief clamp  
For connection of balanced and  
unbalanced plugs, ring and sleeve have  
to be bridged at the stereo plug.  
Balanced use with XLR connectors  
2
1
1
2
1 = Ground / Shield  
2 = hot (+ve)  
3 = cold (-ve)  
3
3
Input  
Output  
For unbalanced use pin 1 and pin 3 have to be bridged  
Fig. 4.1: Different plug types  
14  
4. INSTALLATION  
 
ULTRABASS PRO EX1200  
5. SPECIFICATIONS  
Audio input  
Connectors  
Type  
XLR and 1/4" TRS  
RF filtered, servo balanced input  
50 kOhms balanced, 25 kOhms unbalanced  
+21 dBu balanced and unbalanced (unity gain)  
typ. 40 dB, >55 dB @ 1 kHz  
Impedance  
Max. input level  
CMRR  
Audio output  
Connectors  
Type  
XLR and 1/4" TRS  
electronically servo-balanced output stage. Automatic level correction  
for unbalanced use (6 dB).  
Impedance  
Max. output level  
60 Ohms balanced, 30 Ohms unbalanced  
+21 dBu, +20 dBm balanced and unbalanced  
System specifications  
Frequency response  
Noise  
16 Hz to 150 kHz, +/- 3 dB  
>-95 dBu, unweighted, 22 Hz to 22 kHz  
0.001 % typ. @ +4 dBu, 1 kHz, Gain 1  
0.04 % typ. @ +20 dBu, 1 kHz, Gain 1  
0.01 % typ. SMPTE  
THD  
IMD  
Crosstalk  
<-70 dB, 22 Hz to 22 kHz  
Satellite high pass filter  
Type  
butterworth characteristics, 12 dB/Oct.  
70 Hz  
Cut-off frequency  
Subharmonic synthesizer  
Type  
digital frequency shifter with waveform synthesizer  
variable (0 to 6)  
LEVEL control  
Limiter  
Type  
limiter for the subharmonic synthesizer  
program dependent  
20 dB/s  
Attack time  
Release time  
THRESHOLD control  
variable (-6 dB to OFF)  
Power supply  
Mains voltages  
USA/Canada  
120 V ~, 60 Hz  
U.K./Australia  
240 V ~, 50 Hz  
Europe  
230 V ~, 50 Hz  
General export model  
100-120 V ~ : T 250 mA H  
200-240 V ~ : T 125 mA H  
max. 20 Watts  
100-120 V ~, 200-240 V ~, 50-60 Hz  
Fuse  
Power consumption  
Mains connection  
standard IEC receptacle  
Physical  
Dimension (H, * W, * D)  
Net weight  
Shipping weight  
1 3/4" (44.5 mm) * 19" (482.6 mm) * 8 1/2" (217 mm)  
2.2 kg  
3.4 kg  
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  
shown.  
5. SPECIFICATIONS  
15  
 
ULTRABASS PRO EX1200  
9. WARRANTY  
§ 1 WARRANTY CARD/ONLINE REGISTRATION  
To be protected by the extended warranty, the buyer must com-  
plete and return the enclosed warranty card within 14 days of  
the date of purchase to BEHRINGER Spezielle Studiotechnik  
GmbH, in accordance with the conditions stipulated in § 3. Fail-  
ure to return the card in due time (date as per postmark) will void  
any extended warranty claims.  
3. Free inspections and maintenance/repair work are expressly  
excluded from this warranty, in particular, if caused by improper  
handling of the product by the user.  
This also applies to defects caused by normal wear and tear, in  
particular, of faders, potentiometers, keys/buttons and similar  
parts.  
Based on the conditions herein, the buyer may also choose to  
use the online registration option via the Internet  
4. Damages/defects caused by the following conditions are not  
covered by this warranty:  
s
s
s
misuse, neglect or failure to operate the unit in compliance  
with the instructions given in BEHRINGER user or service  
manuals.  
§ 2 WARRANTY  
1. BEHRINGER (BEHRINGER Spezielle Studiotechnik GmbH in-  
cluding all BEHRINGER subsidiaries listed on the enclosed page,  
except BEHRINGER Japan) warrants the mechanical and elec-  
tronic components of this product to be free of defects in mate-  
rial and workmanship for a period of one (1) year from the  
original date of purchase, in accordance with the warranty regu-  
lations described below. If the product shows any defects within  
the specified warranty period that are not due to normal wear  
and tear and/or improper handling by the user, BEHRINGER shall,  
at its sole discretion, either repair or replace the product.  
connection or operation of the unit in any way that does not  
comply with the technical or safety regulations applicable in  
the country where the product is used.  
damages/defects caused by force majeure or any other  
condition that is beyond the control of BEHRINGER.  
5. Any repair or opening of the unit carried out by unauthorized  
personnel (user included) will void the warranty.  
6. If an inspection of the product by BEHRINGER shows that the  
defect in question is not covered by the warranty, the inspection  
costs are payable by the customer.  
2. If the warranty claim proves to be justified, the product will be  
returned to the user freight prepaid.  
3. Warranty claims other than those indicated above are ex-  
pressly excluded.  
7. Products which do not meet the terms of this warranty will be  
repaired exclusively at the buyers expense. BEHRINGER will  
inform the buyer of any such circumstance. If the buyer fails to  
submit a written repair order within 6 weeks after notification,  
BEHRINGER will return the unit C.O.D. with a separate invoice  
for freight and packing. Such costs will also be invoiced sepa-  
rately when the buyer has sent in a written repair order.  
§ 3 RETURN AUTHORIZATION NUMBER  
1. To obtain warranty service, the buyer (or his authorized dealer)  
must call BEHRINGER (see enclosed list) during normal business  
hours BEFORE returning the product. All inquiries must be ac-  
companied by a description of the problem. BEHRINGER will then  
issue a return authorization number.  
§ 5 WARRANTY TRANSFERABILITY  
2. Subsequently, the product must be returned in its original  
shipping carton, together with the return authorization number to  
the address indicated by BEHRINGER.  
This warranty is extended exclusively to the original buyer (cus-  
tomer of retail dealer) and is not transferable to anyone who  
may subsequently purchase this product. No other person (re-  
tail dealer, etc.) shall be entitled to give any warranty promise on  
behalf of BEHRINGER.  
3. Shipments without freight prepaid will not be accepted.  
§ 4 WARRANTY REGULATIONS  
§ 6 CLAIM FOR DAMAGES  
1. Warranty services will be furnished only if the product is  
accompanied by a copy of the original retail dealers invoice.  
Any product deemed eligible for repair or replacement by  
BEHRINGER under the terms of this warranty will be repaired or  
replaced within 30 days of receipt of the product at BEHRINGER.  
Failure of BEHRINGER to provide proper warranty service shall  
not entitle the buyer to claim (consequential) damages. In no  
event shall the liability of BEHRINGER exceed the invoiced value  
of the product.  
§ 7 OTHER WARRANTY RIGHTS AND NATIONAL LAW  
2. If the product needs to be modified or adapted in order to  
comply with applicable technical or safety standards on a na-  
tional or local level, in any country which is not the country for  
which the product was originally developed and manufactured,  
this modification/adaptation shall not be considered a defect in  
materials or workmanship. The warranty does not cover any  
such modification/adaptation, irrespective of whether it was  
carried out properly or not. Under the terms of this warranty,  
BEHRINGER shall not be held responsible for any cost resulting  
from such a modification/adaptation.  
1. This warranty does not exclude or limit the buyers statutory  
rights provided by national law, in particular, any such rights  
against the seller that arise from a legally effective purchase  
contract.  
2. The warranty regulations mentioned herein are applicable  
unless they constitute an infringement of national warranty law.  
The information contained in this manual is subject to change without notice. No part of this manual may be reproduced or  
transmitted in any form or by any means, electronic or mechanical, including photocopying and recording of any kind, for any  
purpose, without the express written permission of BEHRINGER Spezielle Studiotechnik GmbH.  
BEHRINGER is a registered trademark. ALL RIGHTS RESERVED.  
© 2001 BEHRINGER Spezielle Studiotechnik GmbH.  
BEHRINGER Spezielle Studiotechnik GmbH, Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Münchheide II, Germany  
Tel. +49 (0) 21 54 / 92 06-0, Fax +49 (0) 21 54 / 92 06-30  
16  
6. WARRANTY  
 

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