Built to be both versatile and affordable, the EHX Expression pedal can
control expression parameters on a wide array of products from various
manufacturers as long as the product includes an expression jack. The
TRS polarity switch provides the ability to change the connections to
the TRS jack while a Reverse button and a Range knob allow the musician
dial in the perfect expression sweep for their application.
- CONTROLS, I/O JACKS -
TRS OUT Jack – Plug a 1/4” TRS cable into this jack. The other end of
the cable should be connected to an expression input on the device you
want to control. The EHX Expression pedal ships from the factory with a
1/4” TRS cable. Under most circumstances a standard 1/4” TS instrument
cable will not work. The cable 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 the
TRS +/- button to connect the wiper to the Ring of the TRS cable and the
potentiometer’s 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 EHX
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: TRS Cable
Internal Potentiometer Impedance: 10k?
Quick Specs
-Single-output design
-The pedal’s sweep can be fine-tuned with the range knob while sweep direction can be flipped with the reverse button
-Polarity switch for maximum compatibility with a wide range of gear
-Advanced polymer construction yields a roadworthy pedal with a significant weight savings
-Affordable
-Six foot TRS cable included
