VPJR Volume Buffer Retrofit Kit - Rainbow Edition


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Skill Level: Beginner

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 new one will have a DC jack (no drilling required) on it which can be accessed from between the treadle and the base of the pedal.

The Griffin Effects Buffer Retrofit kit comes without jacks. You can remove the jacks from your existing board and use them or get new jacks found here: Part # E14JACKM

The buffer comes with a DC jack and requires drilling a hole for it. 

Some volume pedals have a taper switch or pot. Installing this retrofit will remove this function. This retrofit will not work on stereo pedals. Soon a retrofit will be made that incorporates these functions.

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 Retrofit Kit - Rainbow Edition

VPJR Volume Buffer Retrofit Kit - Rainbow Edition