Potential Causes of Transducer “Jumping”


1.      Excessive playback level

2. Bends in transducer wire leads

3.      Instrument contact surface not horizontal

4.     Excessive bass depth of the seasoning program material

5.     Excessive bass content of the seasoning program material

6.     Dust on the transducer contact surface and/or the instrument surface

7.      A non-flat resting surface for the transducer (i.e. curve of a violin soundboard, the 90-degree corner edge of a thick pick guard, etc.)

8.     Transducers with less than five hours of use: The tendency to jump is greatest when the transducers are new and unused.  The tendency to jump decreases during the first two to four hours of use.  This is because an internal flexible part is stiffest when new and relaxes during the first few hours of use.

“Relaxing” The Bends/Creases in Transducer Wire Leads

The leads are “wound” for packing.  The winds cause bends or creases.  The bends can “lift” the transducer, causing it to “hop” or “jump” from its intended seasoning site.  Remove the wire lead tie and fully extend the lead, which will relax and straighten for effective use about 24 hours later (depending on environmental conditions).


Either of the following will speed relaxing the wire creases (alternate between both for maximum effect):


1.  Gently bend the wire lead (less than 90-degrees to maintain integrity of the internal conductors) in the direction opposite the observed bend.

2.  Hold the bare wire end of the transducers and hang the transducers by their own weight.  Employ a hair dryer or low-temperature heat gun to apply only low (to low-moderate) temperature heat to the wire only.  Avoid hot spots by constantly moving the heat back and forth along the wire length.  Do not heat the music instrument or anything else. Insure the lead is room temperature before it contacts the instrument.