Behringer FBQ3102 manual Additional FBQ6200 control elements, Limiter, Noise generator

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 amplifier’s 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.

2.3Additional FBQ6200 control elements

2.3.1 Limiter

One of the FBQ6200’s 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 generator’s 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.

6 2. CONTROL ELEMENTS AND CONNECTORS