122 Chapter 15: Graphic Equaliser (GEQ)
PRO1 Live Audio System
Operator Manual
>> To patch a source to a GEQ
1 Open the window of the GEQ.
2 Open the GEQ source drop-down list. (An unpatched GEQ will have “None”
displayed in the text field.)
3 In the drop-down list, click the source
you want. For example, “Aux Send
3”. The new patching assignment will
appear in the source name field (as
shown right) and in the border on the
left of GEQ panel.
4 Click CLOSE to accept the change
and close the GEQ’s window.
The new GEQ patching source assignment
will appear in the virtual rack.
GEQ front panel features
The front panel of the GEQ, as displayed on the GUI, represents the Klark Teknik DN370
Graphic Equaliser. It includes a graphic EQ (faders) section and a filters section.
Thirty one faders provide fine adjustment of each frequency band. The 31 frequency
bands are spaced 1/3 octave apart on the standard ISO 266 frequency centres. All the
functions of the GEQ can be bypassed via an EQ switch, such that the output will be the
same as the input.
The GEQ has one high pass filter, one low pass filter and two variable frequency notch
filters. Each filter is adjusted via a control knob on the GUI screen. To audition the
effect of the filters, use either the EQ switch (which will also bypass the GEQ) or the
individual filter switch.
GEQ front panel
Item Control Function
1 Fader (31-off). Adjusts signal level.
2 SLOPE button Switches the high or low pass filter between 6dB and
12dB. Adjacent yellow LEDs indicate the active
mode.
3 High pass filter
control knob
Adjusts the cut off frequency, which is continuously
variable from 20Hz to 500Hz.
4 Low pass filter
control knob
Adjusts the cut off frequency, which is continuously
variable from 2kHz to 20kHz.
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