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Feedback destroyer pro fbq2496 – Behringer FBQ2496 User Manual

Page 6

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6

FEEDBACK DESTROYER PRO FBQ2496

RESET

If you briefly press the RESET button, all automatically set

filters are erased. If you keep the RESET button pressed

longer, Single-Shot filters are erased as well.

In PEQ mode, briefly pressing the RESET button erases the

selected filter. Keeping the RESET button pressed longer

erases all the parametric filters all at once.

Fig. 3.2: Status display and the LED display on the FBQ2496

STATUS DISPLAY

The FBQ2496 features a total of 40 filters, i.e. 20 filters per

channel. They can be monitored and controlled on the

STATUS DISPLAY.

A constantly lit LED signalizes:
s

A filter was deployed: It already suppresses an instance

of feedback. or:

s

A filter is in the Parametric EQ mode (PEQ), whereby gain

has to be set to a value either higher or lower than 0 dB.

A LED that only periodically blinks signalizes the

selected filter in the PEQ mode.

LED DISPLAY
The three-digit numeric display indicates the absolute value

of the parameter you are modifying. How individual parameter

are adjusted is explained in ch. 4.
s

Hz or kHz is lit when you change the mid frequency of

a filter.

s

The min display is lit when you are adjusting the filter

lift time.

s

The 1/60 LED is lit when you select a filter value smaller

than 0.1. In this case, you can select the following

values: 1/60, 2/60, 3/60, 4/60 and 5/60 (6/60 = 0.1).

s

The dB LED is lit when you adjust a filter gain value.

s

The MIDI display briefly lights up as soon as the

FBQ2496 receives MIDI data.

Fig. 3.3: Control elements on FBQ2496’s right

GAIN

In the PEQ mode, the GAIN button lets you adjust filter gain

in dB (from +15 dB to -15 dB in 0.5-dB increments, and from

-16 dB to -36 dB in 1-dB increments). The dB value set using

the wheel is shown in the display.
PEQ

After keeping the PEQ button pressed for a few moments

(the LED on the PEQ button blinks), use the wheel to set the

number of parametric filters. They start with the filter number

20 and can go down to filter number 1, step by step (see fig.

4.2). At the same time, the already set Single-Shot filters are

shown.

If you only briefly press the PEQ button (the LED on the PEQ

button is lit), any filter can be called up using the wheel. The

number of the selected filter is shown in the display, and the

corresponding filter LED blinks. Amplification, bandwidth and

mid frequency parameters can now be shown.

+

Only the parameters of the parametric filters can be

manually adjusted! The settings of the Single-Shot filters

and the automatic filters can be shown but not modified.

FREQUENCY

When the FBQ2496 is in the PEQ mode (the LED on the

PEQ button is lit), the mid frequency of each individual filter

can be set. To modify the mid frequency, press the

FREQUENCY button. The frequency range can vary from

20 Hz to 20 kHz.
LEFT-RIGHT

The LEFT-RIGHT button lets you select the channels you

wish to edit.

If your FBQ2496 is in the stereo mode, both channels are

automatically selected and both LEDs are lit. In this mode,

you only have to set the parameters for one channel, and

they are automatically carried over onto the other channel.

If you keep the LEFT-RIGHT button pressed for a few

moments, the two channels are separated from one another.

That way, you can assign different parameters to each of the

two channels. Toggling between the two channels is done

by briefly pressing the LEFT-RIGHT button.

Keeping the LEFT-RIGHT button pressed for a few moments

restores the stereo coupling, and the settings from the active

channel are automatically carried over onto the other

channel.

+

Whether your FBQ2496 is running in mono or in stereo is

stored each time you turn the unit off, and the same mode

is reloaded each time you power up the unit.

BANDWIDTH

Use the BANDWIDTH button to set the bandwidth (Q-factor/

quality) of the selected parametric filter. The adjustable filter

quality encompasses a range from 1/60th of an octave up to

10 octaves. The FBQ2496 has to be in PEQ mode (the LED

on the PEQ button is lit).
BYPASS

Keeping the BYPASS button pressed for a few moments

activates the hard bypass. The unit

’s input is directly routed

to the output and the filters are bypassed.

+

Please use the BYPASS function with extreme caution

because deactivating the filters gives free reign to

unsuppressed feedback.
MIDI

Simultaneously pressing BANDWIDTH and BYPASS gets you

into the MIDI menu (both button LEDs are lit). Here you can

activate and deactivate MIDI and select a MIDI channel (ch. 7).
WHEEL

WHEEL is a continuous rotary control. Use it to make

adjustments to the selected parameter. Turn the wheel

clockwise to increase parameter values. Turn it

counterclockwise to lower the parameter values.
POWER

Press POWER to turn on your FEEDBACK DESTROYER PRO.

+

Attention: The POWER switch does not fully disconnect the

unit from the mains. To disconnect the unit from the mains,

pull out the main cord plug or appliance coupler. When

installing the product, ensure the plug or appliance coupler

is readily operable. Unplug the power cord completely when

the unit is not used for prolonged periods of time.

3.2 The rear

Fig.3.4: Mains connector, fuse switch and serial number

The mains connection is established using a cable with an

IEC mains connector. An appropriate mains cable is included.

3. CONTROL ELEMENTS AND CONNECTIONS