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Sold direct from Stephenson Amps

The FMD (Fix My Duck) is a three-in-one pedal.

  • It can function as a buffer pedal converting the guitar’s output into a low-impedance signal.
  • Treble booster pedal. It's absolute magic at producing clarity and presence in solos even when the guitar has a ton of bottom, or when using amps that become bloated sounding when slammed hard.
  • It can function as a full-range booster pedal. This mode is used to drive the front end of an amp and push the amp into its own natural overdrive.


The FMD is a pedal designed for guitar players. It evolved from a circuit that was designed for a luthier who needed an acoustic pre-amp for his 12-sensor pick-up system. When working on this acoustic preamp circuit I was looking for something different and special, so I turned to my good friend Kevin O’Connor at London Power for some guidance on this project. I am happy to say, Kevin had some great ideas and steered me in the right direction. The basic circuit I finally settled on uses JFETs. Tuned properly, it can compress in an organic “tubish”-sounding way when pushed into clipping.

I also used a version of this circuit in my K2 buffer pedal, ideal for retaining tonal integrity when driving long instrument cables.

After some experimentation, I found that cascading several of these circuits together created a very pleasant-sounding booster pedal. After another year of building one-off prototypes to get the circuit tonally worked out, the FMD pedal was born.

How it works

Sens. – Controls the FMD’s level of gain and compression. Higher settings are brighter and more compressed, while low settings are darker with less compression.

Level – Controls the output level.

Tone – Controls the high frequency.

Boost switch – Up is full range boost mode. Middle is flat, buffer mode. Down is treble boost mode.

Thin/Thick switch - Thin position is used to cut some bottom frequencies. Thick position is full range.

Footswitch – Is a high-quality true bypass switch.


Can be run off the internal 9-volt battery or an industry-standard 2.1mm 9-volt center negative regulated power supply. The FMD will run continuously from an external power supply and  automatically disconnect the battery if the input jack is unplugged

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
  • Fix My Duck
Made In
  • Canada

Stephenson Amplification

Parksville, Canada
Joined Reverb:2021

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