In
odu
ion
Congratulations on your purchase of the Guitar
Center GC-EXP1-PRO Expression Pedal. This product
is designed to be intuitive to set-up and operate, and
to provide many years of trouble free service.
However, we recommend that you take a few
moments to read through this User Guide in order
to get the best possible experience with your new
pedal.
Expression pedals are intended to remotely control
functions of other devices such as digital guitar
amps, multi-effect rack units, effects pedals, MIDI
controllers, and electronic keyboards. Expression
pedals do not generate sounds themselves, but allow
the musician to remotely control effects and
parameters within other equipment. Be sure to check
the specifications of the device you will be
controlling in order to ensure compatibility. The
specifications for the GC-EXP1-PRO are listed on the
reverse of this User Guide.
A regularly updated compatibility list is maintained
on the support section at
www.mission-engineering.com
Conne
ions
The GC-EXP1-PRO uses a single ¼” TRS phone plug
output marked
OUT1
on the underside of the pedal.
OUT2
is not used in this pedal model, and can be
ignored.
OUT2
is fitted with a blank.
Connect
OUT1
to the expression pedal input on your
device using a ¼” TRS-TRS instrument cable such
as the Mission MCTRS3A cable. TRS stands for
Tip, Ring, Sleeve and is a three conductor cable. It
is sometimes also called a
stereo
, or
balanced
cable.
(
See Figure 1.
) The GC-EXP1-PRO requires the use of
the correct cable with a TRS connector at both ends.
A mono TS cable such as a regular guitar cable, and
insert cables that have both TS and TRS plugs, will
not work.
Figure 1. shows a TRS connector with the three
conductors separated by the black insulation bands.
The pointed front of the connector is the tip, the
middle band is the ring, and the large conductor at
the rear nearest the plug body is the sleeve.
The silver knob on the right side of the pedal is
marked
INPUT
. This controls the minimum input
level of the pedal. The control acts as a trim pot and
sets the minimum level for the pedal at heel down.
With the control fully counter clockwise, the pedal
will be 0% at heel down and 100% at toe down.
Adjust the
INPUT
control clockwise to increase the
heel down value above 0%.
For example, maybe you are using the expression
pedal to control volume on an amp or keyboard.
Let’s say you want maximum volume with the pedal
all the way at toe down, but you would like to set
the volume at heel down to 50% rather than all the
way off. Turn the control to about halfway.
This will set the minimum to about 50% and the
pedal will now sweep 50 – 100%.
The
INPUT
control will adjust the minimum level
between 0 and approximately 80%. The control has
no impact on the maximum value, which will always
be 100% at toe down.
Figure 1.
