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Which expression pedal for the EHX Ring Thing?


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From the Ring Thing manual:

 

 

EXP INPUT Jack

 

The Ring Thing allows for expression pedal input via the EXP input jack. The expression

 

pedal must have a Tip-Ring-Sleeve plug attached to it. It is important that the expression

 

pedal have the correct polarity. The tip of the plug must be connected to the wiper of the

 

potentiometer inside the expression pedal. If you are not sure what type of expression

 

pedal to use, try to purchase one with a polarity switch so that it will work with many

 

different types of instruments. Some suggested Expression Pedals: M-Audio EX-P, Moog

 

EP-2, Roland EV-5 or Boss FV-500L. You may also connect a control voltage to this jack.

 

The Control Voltage range must be between 0 V to 5 V.

 

 

From this description, the potentiometer value used by the expression pedal does NOT matter -- it's being used as a true potentiometer (i.e., voltage divider). Given the above examples, the pedal must have a TRS plug, with the sleeve connected to the low end (minimum pedal depression) of the pot, the ring to the high end (maximum pedal depression) and the tip to the wiper. A Zoom expression pedal will NOT work since the wiper is attached to the ring.

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