VPJR Volume Buffer Mod Service - Rainbow LED Version View larger

VPJR Volume Buffer Mod Service - Rainbow Edition

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Get it installed in a new pedal or send us your pedal and we'll install it. Choose from the drop-down menu.

Stop your volume pedal from destroying your tone!

Limited Edition Rainbow LED Version:

  • Super bright LED fades through the colors of the rainbow.
  • LED on/off switch
  • Selectable buffer on the tuner output

The Griffin Effects Buffer Retrofit adds and input and 2 output buffers (one on the output and one on the tuner output) to the pedal. This does two things. It isolates the pickups to prevent loading of the volume pot and removes the series resistance of the pot combining with the capacitance to ground of the guitar cable. The tone that goes in is the tone that comes out!

YouTube Video: Rainbow Edition Buffer

We can customize* the color too! Just want a solid color of your choice, we can do it. Want it to change colors without fading, want it to strobe, it can be done.

This kit is for the passive volume pedals. After installation, your pedal will be an active pedal and require a standard 2.1 center negative power supply (not included). The volume pedals circuit board will be replaced with a new one. This kit requies drilling a hole in the pedal for the DC jack.

Some volume pedals have a taper switch or pot. Installing this retrofit will remove this function. This buffer will not work on stereo pedals. 

This kit has been sucessfully installed on these following VPJR versions:

If you version isn't listed, contact us and we can help see if it will work for your pedal

Power consumption: 3.5mA with LED off.

*Customizing colors or effects may incur additional fees


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VPJR Volume Buffer Mod Service - Rainbow Edition

VPJR Volume Buffer Mod Service - Rainbow Edition