Kick UP the BASSierness

I read an Amazon review about the Yamaha KU100 Beaterless Silent Kick Unit stating that the max volume it produced seemed to be at about half what it should be.  That reviewer was right on the money, the KU100 has a voltage divider that cuts the signal exactly in half.  The output signal gets a 100K Ohm connection to both the positive and the negative leads from the piezo.  Second place prize goes to all the other reviewers who said that the pedal is mushy and quiet.

I de-divided the divider and now it has a solid feel and packs a beefy punch, like it should.  I jumped the circuit from the positive piezo lead to the tip connection on the TRS jack by soldering in the red wire you see in the top image. I used a long wire just in case I ever want to add a potentiometer to tone it down, but right now it sounds just right.



Diegogas said... March 12, 2019 at 11:59 AM  

Hi Andy, would you have a video in which you use the KU100 to evaluate the volume of the padale? I would be very helpful. After two years have you had problems after the change? Thank you

Diegogas said... March 12, 2019 at 12:09 PM  

Is the change suitable for the DD series drumpads?

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