Filter
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5.3 Filter Section
The Filter Section includes a 12dB/Octave low pass filter and
an 18dB/Octave high pass filter. The low pass filter operates
from 3kHz to 22kHz and the high pass filter operates from
20Hz to 500Hz. In addition, each filter has an OUT position
which bypasses the filter.
There are three positions where the Filter Section can be
placed: after the equalizer, before the equalizer or in the
sidechain of the dynamics section.
When no buttons in the Filter section are pressed, the filters
come after the Equalizer section.
With the INPUT button pressed, the filters come before the
Equalizer section.
When the DYN SC button is pressed, the filters are switched
into the sidechain of the Dynamics section. The term/process
‘sidechain’ will be discussed in greater detail in the overview
of the Dynamics section.
Using Filters
DYN SC: The Filters are switched into the sidechain of the
Dynamics section. The Equaliser can be switched into the
sidechain independently. Note that DYN SC overrides the
INPUT function (see below).
INPUT: Moves the Filters to put them in circuit immediately
after the Channel Input section. This allows the Filters to be
used to clean up signals before compressing them. Selecting
Dynamics ‘PRE EQ’ will allow the compressed signal to be
EQ’
18bB/Oct
12dB/Oct
∆t ∆t
INPUT
OUTPUT
Freq Hz Freq kHz
HPF
LPF
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