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HELIX DN9848E Remote Control Software
User Guide
49
5.3.6 Parametric Equalisation (PEQ Screen)
For further details regarding PEQ refer to Section 7.1 of this guide.
The HELIX DN9848E provides six parametric equalisation stages on each of the eight output channels.
These equalise the output signal in respect of loudspeaker and/or system characteristics. The first and
last of these PEQ sections can, alternatively, be configured for lower and upper shelving equalisation.
All of the PEQ sections can be used across the full range from 20Hz to 20kHz and are set independently
of each other.
Any PEQ (from 1 to 6) can be used as the reference frequency for the Phase Shifter (see Section 5.3.4).
To set up PEQ with Q/bandwidth
To set up PEQ on an output channel with Q or bandwidth (depending on configuration), carry out the
following:
1 In the PEQ screen, select the required output by pressing the
appropriate output button just above the graph, for example,
“Output 2”.
2 Select the PEQ section (1 to 6) you wish to set up by clicking within it, for
example 1. The background of the section’s number will change to green to
show it is selected (see diagram right).
3 Set a centre frequency (21 steps per octave) and level using the Frequency
and Level control knobs or by using the target on the graph between
20.00 Hz and 20.00 kHz, and –12.0 dB and 12.0 dB, respectively.
4 Adjust the Q value using the Q control knob. This value can be configured
as Q or bandwidth (see section 6.5), with the ranges between 18.03 Q and
0.4 Q, and 0.08 Oct to 3.0 Oct, respectively.
If a PEQ section is not needed in the set up, set its level to 0 dB on the Level control
knob.