284 Chapter 31: Output Channels
PRO1 Live Audio System
Operator Manual
EQ (E zone)
For tonal control of the aux, matrix and master output signals, the output channel EQ
has the option of a six-band sweep parametric EQ (PEQ) or an assignable graphic EQ
(GEQ).
PEQ
The parametric EQ section (E zone) of the channel strip (mix and master bays) allows
tonal control of the input signal. The E zone contains all of the PEQ controls, along with
a shelving mode selection button and another set of band selection buttons.
All of the outputs have six-band PEQs. Two of the six bands have three shelving modes
each, while another has just one. Any combination of the six bands can be used to
control the signal, although only one band can be adjusted in the E zone at any time.
However, the EQ processing area (GUI channel strip) displays four bands at any time,
and also has navigational controls.
Note: While 24dB in band 2 is selected, band 1 is nullified.
4 comp/gate up and down select buttons, for swapping dynamic section control from
compressor to gate, and vice versa.
5 Compressor make up gain control knob, compensates for the reduced loudness of a
compressed signal. Range is from 0dB to 24dB.
6 Compressor KNEE switch, controls how compressor starts to apply attenuation as the
signal goes through the threshold (see “About the compressor graph” on page 262).
For more information, see “Knee” on page 300.
7 Compressor ratio/range/[ratio] control knob, adjusts amount of compression applied
to signals above threshold. Range is from infinity (∞) to 1:1. When set to infinity it sets
the compressor to limiter mode.
8 Compressor attack control knob, adjusts time for compressor to respond after an over-
threshold signal. Range is from 0.2ms to 20ms (milliseconds).
9 MODE switch, selects compressor mode from the five compressor types available (see
“PRO1 compressor modes (dynamic)” on page 299).
10 Compressor release control knob, adjusts time for compressor to recover after
programme material falls back below threshold. Range is from 0.05s to 3.00s
(seconds).
11 Compressor ‘gain reduction’ meter (not displayed).
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