Chapter 18: EQ
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Chapter 18: EQ
The following EQ features are available:
• A built-in EQ is available on each input channel and FX
return.
• Graphic EQs are available for use on output channels.
• EQ plug-ins can be used on input and output channels.
Built-In EQ
Different types of built-in EQ are available for input channels,
FX returns, and outputs.
Input Channels
Each input channel provides a high-pass filter
plus a built-in four-band parametric EQ. EQ can be set for dig-
ital or analog mode. In digital mode only, the four-band EQ
provides selectable Bell/Shelf shapes for the Hi and Lo bands.
Input channel EQ can be configured as pre- or post-Dynamics
on a per-channel basis.
FX Returns
Each FX return provides a built-in two-band EQ.
FX return EQ can be used in digital or analog mode; in digital
mode, the bands can be individually configured for Bell or
Shelf modes.
Graphic EQs
Output busses can have a built-in Graphic EQ assigned to
them.
EQ Plug-Ins
EQ plug-ins can be used on input and output channels. When
assigned in the plug-in racks, EQ plug-ins can be inserted on
individual mono or stereo channels or fed by busses. EQ
plug-ins can be adjusted using the Channel Control section of
the ACS, using the Output encoders (in Insert mode), or from
the on-screen Plug-Ins page. In addition, plug-in presets can
be saved and loaded.
Built-In EQ Parameters
HPF
Each Input Channel provides a fourth-order high-pass filter
(HPF) with adjustable corner frequency and in/out control.
The input HPF defaults to 20 Hz, out-of-circuit.
You can adjust HPF frequency and in/out state from the input
encoders, from the Channel Control section of the ACS, or
on-screen.
Input Parametric EQ
Input Channels and FX Returns provide built-in parametric
EQ. The following parameters are available in the built-in EQ,
and can be adjusted using the EQ controls in the Channel
Control section ACS or on-screen.
EQ In
EQ In toggles the built-in EQ processor (all bands) in or out of
circuit on the selected channels. EQ In/Out can be controlled
from the ACS or on-screen.
EQ Status LED
The (red) channel EQ In LED indicates EQ in/out status as
shown in the following table.
Color
EQ Status
(none)
Not in circuit
Red
In circuit
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