Behringer Musical Instrument Amplifier FBQ3102 Manuel D’Utilisation

ULTRAGRAPH PRO FBQ1502/ULTRAGRAPH PRO FBQ3102/ULTRAGRAPH PRO FBQ6200

a unit intended for the European market to a 120 V power

outlet, you must also replace the factory fuse with a higher-

value fuse.
SERIAL NUMBER. Please take a few minutes and send to

us a completely filled out warranty card within 14 days of

the original date of purchase. Otherwise, warranty claims

may be rendered invalid. Or fill out the warranty information

online at www.behringer.com.

Fig. 2.3: Connectors at the rear of the FBQ3102

INPUT. These are the audio inputs of the FBQ3102. All

three equalizers in the series feature the same input and

output connectors in the form of balanced 1/4" TRS and

XLR connectors.
OUTPUT. These are the audio outputs. The 1/4" connectors

and their respective XLR connectors are wired in parallel.
SUB OUT. This balanced XLR connector provides the

output signal for your subwoofer. A summed up mono

signal for the subwoofer is provided here. Please connect

the subwoofer amplifiers input to this connector.
Use the X-OVER FREQ control to select the desired

crossover frequency for the subwoofer.

The bandwidth limitation enacted through the high-

pass filter (LOW CUT) also affects the frequency

response of the subwoofer output.

2.3 Additional FBQ6200 control elements

2.3.1 Limiter

One of the FBQ6200s outstanding features is its integrated

limiter.

A limiter is a device that protects your loudspeakers and other

equipment connected to your FBQ6200 (or your recordings)

from overdriving and the signal distortion associated.

Please take into consideration that when you

increase the presence of multiple frequency bands,

the overall signal level increases substantially as

well. The limiter will process very quickly in such

situations. This can be avoided by performing signal

corrections by lowering certain frequency ranges

instead of increasing others.

To produce creative sound effects, you can also

purposely force the peak limiter into action.
The ULTRAGRAPH PRO FBQ6200 features a built-in limiter

for each channel. Use the LIMITER switch for its activation.

Fig. 2.4: FBQ6200 control elements

The limiter display informs you about the amount of gain

reduction perfomed by the limiter.
The limiter confines the signal to an adjustable signal level.

Use the THRESHOLD control to adjust the threshold value

of the limiter from -6 to +22 dB. When the control is in the

-6 dB setting, the gain reduction is very pronounced; the

more you turn the control toward +22 dB, the gain reduction

is lower. When the threshold control is in its right-most

position, the limiter is not applied.

2.3.2 Noise generator

By using the built-in noise generator, you can create the so-

called pink noise that can be used to adjust your P.A. system to

specific acoustic characteristics of various venues.

Activate the pink noise generator by using the PINK NOISE

switch. The built-in switch illumination blinks red when the

pink noise generator is activated.
Read off the noise generators signal level on the LED

display.
Use the NOISE LEVEL control to adjust the volume of the

pink noise you generate.

Room resonance and sound transfer characteristics of the

P.A. system cause some frequencies to be more prominently

present while other frequencies are less present. Pink noise is a

neutral signal that can be played back via the P.A. system in

order to measure these sound characteristics.

Such a measurement of the frequency response by using a

special microphone in conjunction with a real-time analyzer (a

real-time analyzer is for example integrated into the BEHRINGER

ULTRACURVE PRO DEQ2496) delivers the basis for setting up

the equalizer. More pronounced frequencies are lowered, and

those frequencies that are not so prominently featured are

increased, thus approximately achieving linear reproduction.

2. CONTROL ELEMENTS AND CONNECTORS