Rainger FX Dr Freakenstein Fuzz review

Plug in this monstrous fuzz pedal

  • £199
  • $334.99
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Our Verdict

A powerful gated fuzz with a range of features to animate it either statically or in performance.


  • Harmonically-rich fuzz tones. Adjustable modulation and OSC. Fun.


  • That power switch may not be for all...

The ethos of London-based Rainger FX is that pedals should sound great, be totally reliable and fun to use. The Dr Freakenstein Fuzz DrFF-3 fulfils those criteria.

"This pedal delivers glorious, harmonically-rich fuzz, albeit via a noise gate"

This pedal won't even power up unless you engage the laboratory-style knife switch, bringing life to the monster.

And a monster it is: this pedal delivers glorious, harmonically-rich fuzz, albeit via a noise gate, so you get silence between notes; but you need to have the guitar volume max'd and play carefully to avoid unwanted sonic artefacts.

An OSC knob, which controls the harmonic overtones, is effectively a tone control for the fuzz and for dialling in a low octave via a hi/lo switch that offers two different fuzz voices. There's also adjustable modulation for the OSC for sweep or tremolo effects.

The doctor has an assistant named Igor, too: a foot-controlled pressure pad that you step on to tweak the OSC or the modulation range, so filter sweeps, wah-like effects, bringing the low octave in and increasing modulation, are all possible.

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Tech Specs

Available SoundsOscillator distortion
FeaturesHard-wired true-bypass, Igor expression pad
Dimensions130 x 75 x 140
Unit Power Source9 Volt Batteries Mains