Setting the high and low pass filters 175
XL8 Control Centre
Operator Manual
Setting the high and low pass filters
Select high and low pass filters. Each can be on or off and, when on, each has two
settings. These filters can also be set via the GUI.
To set both high and low pass filters in
1 In the gain trim section of the required input channel, select the high and low pass filter section by pressing
the quick access button.
2 Press high pass filter button to enable high pass filter.
3 Press SLOPE to enable slope of 24dB (SLOPE button illuminates). Leaving the SLOPE button in the fully
out position (SLOPE button extinguished) gives a slope of 12dB.
4 Adjust high pass filter control knob to required value in the range 10Hz to 400Hz.
5 Press low pass filter button to enable low pass filter.
6 Press SLOPE to enable slope of 12dB (SLOPE button illuminates). Leaving SLOPE button in the fully out
position (SLOPE button extinguished) gives a slope of 6dB.
7 Adjust low pass filter control knob to required value in the range 2kHz to 40kHz.
1
2
3
5
4
7
6
To aid filter set-up, the control surface
settings for the high and low pass filters are
replicated on the GUI, which can also be
used to set up the filters using the
associated glide pad
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Important:
Stage box hi pass: The remote stage box contains a 12dB/Oct 30Hz filter. It
is recommended that this is used at all times for optimum A/D performance.
However, it may be bypassed if extremely low frequency performance is
required, for example, when testing the system.
Graph shows the
filter effects
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