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FEEDBACK DESTROYER PRO FBQ2496
Fig. 5.1: Using the FBQ2496 in the monitor path
5.2 FBQ2496 in channel insert
Since you want to make sure that deliberately produced feedback
signals, such as guitar feedback, are not eliminated, try inserting
the FBQ2496 into those channels that are susceptible to feedback.
For example, you could process a vocal microphone that is prone
to producing feedback by connecting the FBQ2496 to the insert
points of the respective channel..
Fig. 5.2: FEEDBACK DESTROYER PRO
in channel insert/subgroup insert
+ When processing a microphone signal with the DSP1124P
and a compressor inserted into the same channel insert
point, the FBQ2496 should always be used
pre-compressor.
If your mixing console features subgroups with their own inserts,
this is perfect for connecting the FBQ2496! Route all the channels
prone to feedback (e.g. all vocal microphones) to one subgroup.
This way, channels that are less prone to feedback (e.g. line signals,
instrument microphones with lower signal levels) can freely pass
through the FBQ2496; only the critical microphone channels are
being modified.
In case your mixing console features no subgroup insert, we
recommend the following: connect the subgroup output to one
FBQ2496 input. On the other hand, the corresponding output is
either connected to an unused line input of a mixer channel or to
one of its Aux Return inputs. As long as both FBQ2496 channels
are not coupled, the second FEEDBACK DESTROYER PRO
channel is available to you for a completely different purpose (e.g.
use it on a channel insert).
5.3 FBQ2496 in studio applications
Thanks to the FBQ2496s flexible configuration, it makes perfect
sense to use it at the studio or for home recordings. When in
Parametric EQ mode, the FEEDBACK DESTROYER PRO puts up
to 20 fully parametric equalizers per audio channel at your disposal.
Everything is possible: from simple signal processing to total signal
manipulation. For example, you can also use the FBQ2496 to
remove distortion from your studio monitors, or you may use it to
aid the EQ function on your mixing console if it only has semi-
parametric EQs.
6. INCOMING SIGNAL LEVEL
Make sure that the level of the signal being fed into your FBQ2496
is always correctly set! That way, the FBQ2496 will always be able
to effectively suppress feedback. To correctly set the signal level,
use the LEVEL METER display
. The upper clip LEDs should
ideally never light up. At any rate, aim to avoid the clip LEDs
constantly being lit up.
If the signal level is too low, the music looses its dynamics, and the
result is a weak, hissing sound that does not set itself through.
Similarly, you should avoid at all cost signal levels that are too
high because they will overdrive the FBQ2496 converters. Digital
distortion (unlike its analog counterpart) is extremely unpleasant
because such distortion does not occur gradually but extremely
abruptly.
6. INCOMING SIGNAL LEVEL