The Dual Expression allows you to simultaneously control two expression
ready devices with one pedal. Each output of the Dual Expression
features its own set of controls: separate TRS polarity buttons expand
each outputs compatibility with other products while the separate
Reverse buttons and Range knobs allow the musician to dial in a unique
expression sweep for each half of the Dual Expression.
- CONTROLS, I/O JACKS -
EXP 1/EXP 2 Jacks – Plug 1/4” TRS cables into these jacks. The other end
of the cables should be connected to expression inputs on the devices
you want to control. The Dual Expression ships from the factory with two
1/4” TRS cables. Under most circumstances standard, TS, 1/4” instrument
cables will not work. The cables must be TRS.
REV Button – Reverses the sweep direction of the expression pedal. The
standard sweep direction is achieved when the REV button is set to its
OUT position: as you move from heel to toe the expression pedal sweeps
from minimum to maximum. Push the REV button to its IN position to
reverse this behavior: sweep from maximum to minimum as you move from
heel to toe.
TRS +/- Button – Reverses the polarity of the TRS jack for expanded
compatibility with other devices. In the OUT position: the internal
potentiometer’s wiper is connected to the Tip of the TRS cable and the
potentiometer’s maximum setting is connected to the Ring. Press IN TRS
+/- to connect the wiper to the Ring of the TRS cable and the maximum
setting to the Tip. The Sleeve of the TRS cable is always connected to
the potentiometer’s minimum position. For EHX pedals, set this button to
the OUT position. If you find the Dual Expression does not achieve a
smooth sweep over the full range of the foot pedal, try changing the TRS
+/- setting.
RANGE Knob – Adjusts the minimum setting of the expression pedal. As you
turn RANGE towards 0, the minimum sweep setting moves towards the fixed
maximum setting. For the full range, set this knob to 10.
Included: 2 x TRS Cables
Internal Potentiometer Impedance: 10k?
