Troubleshooting guide

Modular Processors
SHURE
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P4800 System Processor Software Guide Page 64 of 108
Graphic Equalizer
Graphic equalizers distribute a fixed set of broadband, constant-Q filters across the frequency spectrum, each
with individual boost/cut controls. The System Processor provides the following types of graphic equalizers:
Block Name
Description
§ GEQ10 10 Band Graphic Equalizer
§ GEQ30 30 Band Graphic Equalizer
Function
Use this processor for convenient broadband room equalization. The overall bandwidth of the
processor and the bandwidth of the individual filters depend on the type of graphic EQ you select. The
GEQ10 has 10 one-octave filters between 31.5Hz and 16kHz, while the GEQ30 has 30 1/3-octave
filters between 25Hz and 20kHz. GEQ10 is shown in figure 46 above.
Parameter Window Features
This section explains the features and parameter controls of the graphic EQ, using GEQ10 as an
example. GEQ30 is identical, except for the number of bands and overall frequency range.
Frequency Band Faders
You can set the frequency band faders by dragging the knob up or down with the mouse or by clicking on
the scale at the level that you would like to set. You can cut or boost any band between –18dB and +12dB
in 0.5dB increments. For more information on setting faders, see the Faders section on page 31.
Response Graph
This curve is a graphical representation of the results of your frequency band settings, as well as the
type of filter Q you have selected.
Note: The curve does not reflect the cumulative affect of multiple processor blocks
in the signal path.
Figure 46 − GEQ10 Window