10
1 INTRODUCTION
TO CONNECT & CALIBRATE AN EXPRESSION PEDAL...
Expression pedals should have a linear resistance taper and must have a maximum
resistance in the range of 10–100kΩ. Expression pedals must be used with Tip-Ring-
Sleeve (TRS) cables.
Connect your expression pedal to one of the FM3 Pedal jacks with a TRS cable, then
follow these instructions:
1. From the Home page, open SETUP: I/O: Pedal.
2. For pedal jack 1, set Pedal 1 Setup to “PEDAL 1 (EXP/SW TIP)”
(or use Pedal 2 Setup if that’s the jack you’re connecting to)
3. Navigate down to the Calibrate function for your pedal and press the ENTER.
4. Follow the on-screen instructions to perform calibration. Press HOME to nish.
Be sure to see the next page for instructions on assigning your new pedal.
If something doesn’t work, check a different pedal or cable!
FRACTAL AUDIO EV PEDALS
The Fractal Audio Systems EV series of
expression pedals are perfect for use with all
Fractal Audio Systems products. The EV-1 is
a full-sized expression pedal. The EV-2 is a
compact version. These pedals feature rugged
cast metal casings, a high quality 100kΩ
potentiometer, and built-in analog volume
pedal capability.
Learn more at https://www.fractalaudio.com
EXPRESSION PEDALS
WHAT IS TRS? “TRS” stands for TIP-RING-SLEEVE and describes the
conguration of a 1/4" end plug or jack with three connectors. Normal guitar cables
are “TS” (Tip-Sleeve) since they lack the ring required for a third contact. Expression
pedals require TRS cables because full control voltage is transmitted to them on
one contact (the tip), while less than full voltage is returned to on another (the ring)
so the host device is able to sense and utilize the pedal position. The third contact
(sleeve) is connected to ground.
This section is for pedals connected to the local “Pedal” jacks of the FM3.
For pedals connected to an FC Series controller, see your FC Owner’s Manual.
FM3
EXPRESION
PEDAL
TRS
PEDAL JACK
TRS
FM3
SINGLE SWITCH
(TIP)
TS TRS
PEDAL JACK
TS
Guitar Cable
Insert Cable
TRS Cable
TRS
TRS
TRS Cable
TS TS
FM3
PEDAL JACK PEDAL JACK
SWITCH
(TIP)
SWITCH
(RING)
“DUAL”
SWITCH
Some “Dual”
switches work
over a single
TRS cable.
Each of the two Pedal jacks of the FM3 support one expression pedal (or 1 to 2 switches).
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