Rocktron Xpression - Manual (Page 23)

Functions and Parameter Descriptions
The first function displayed when turning the FUNCTION SELECT
control is the Global function. The parameters provided in this function affect
all presets (i.e. the settings stored for these parameters are the same for all
presets).
The PARAMETER SELECT control will allow you to access each of the following
Global parameters:
The PARAMETER ADJUST control will allow you to adjust each of the GLOBAL
parameters:
GLOBAL
Function
INSTR
HP CUT
OUTPUT
HUSH OFFSET
MUTE
DIRECT
The INSTR parameter allows you to select (with the PARAMETER ADJUST control) either GUITAR
or BASS for that particular preset.
Selecting GUITAR will bypass the HP CUT parameter (although the HP CUT parameter will be
displayed when adjusting the PARAMETER SELECT control, it will be bypassed).
Selecting BASS will route the signal through the hi pass filter section (controlled by the HP CUT
parameter)
***NOTE - The INSTRU and HP CUT Parameters are NOT available when “ROTARY” is selected in
the CONFIG SELECT section (see SELECTING A CONFIGURATION in the “Operating the
Xpression” section on page 66)
The HP CUT parameter allows you to select (with the PARAMETER ADJUST control) the amount of
low frequency content that gets passed into the effects processing section of the Xpression. The dry
signal content remains uneffected at full bandwidth, with EQ when DIGITAL is selected for the Dry
Path.
Selecting 80 HZ sends all frequency content above 80 HZ into the effects processing section.
Selecting 160 HZ sends all frequency content above 160 HZ into the effects processing section.
Selecting 240 HZ sends all frequency content above 240 HZ into the effects processing section.
The OUTPUT parameter determines whether the output of the Xpression is a stereo (left and right)
signal or two mono signals.
The HUSH OFFSET parameter allows you to globally (all presets) adjust the HUSH ® Expander
Threshold. This means that if this parameter is altered from 0dB to +3dB, the Expander Threshold will
be 3dB higher for all presets. This feature can be useful when switching from a quiet guitar with
passive electronics to a noisy guitar with active electronics - as the active guitar would require a higher
Threshold level in all presets.
The MUTE parameter allows you to mute the output of the Xpression. This feature is especially useful
when changing guitars during a live set. When the Xpression is muted, front panel controls are dis-
abled. However, a MIDI program change will disable the mute (mute = out) and execute the program
change.
The MUTE parameter can be assigned to a MIDI controller number for use with a MIDI device (such
as a Rocktron All Access, Rocktron MIDI Mate or MIDI XChange).
The DIRECT parameter determines whether the direct signal is switched in or out of the signal path.
When using the Xpression in applications where the unit is connected in parallel, it is recommended
that the direct signal is switched out - thereby providing 100% wet (effect) output.
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