Manual

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