Acid Fuzz Professional MkII


Acid Fuzz

The Acid Fuzz Professional MKII is a rebuild of the 1960's Professional MKII Tone Bender made by Sola Sounds and VOX.   This is the same fuzz pedal used by Jimmy Page, Jeff Beck, etc...  NOS components and careful tuning achieve the same smooth saturated fuzz of the original, with tons of sustain and a hint of germanium sizzle.  100% hand made including hand selected Mullard OC75 germanium transistors with correct gain and leakage for accurate reproduction of the classic 60's MKII tone.

This is the perfect gigging pedal as it is built like a tank + you can leave it plugged in on a pedal board without killing the battery by using the built in on/off switch.  The pedal powers on when a 1/4" cable is inserted in to the input.  However, when switched to the "off" position the battery is completely disconnected from the circuit so it can be left plugged in on a pedal board. Since germanium transistors are notoriously temperature sensitive the Professional MKII also includes an adjustable "bias" control to compensate for various room temperatures and to get nasty splatty dying battery and buzzing chainsaw sounds as well.  Original 60's germanium tone benders have been known to just stop working if temperatures get too extreme.  When the bias control is set in the middle the sound is like the original MKII.  If the room is very cold, turn the bias a bit clockwise to compensate.  It it's very warm, turn it a bit counter clockwise.  You can also adjust the bias to any degree off center to get different sounds.  As the original Professional MKII Tone Benders can be somewhat thick sounding, the Acid Fuzz Professional MKII also features a "tone" switch for a cut in the lower/mid frequencies, which achieves a thinner more trebly fuzz which is better for cutting through a live mix with bass and drums.


  • hand selected nos OC75 germanium transistors (also available with OC81D and AC125 transistors)
  • adjustable bias control
  • tone switch/bass boost
  • on/off power switch
  • Neutrik jacks
  • Alpha foot switch
  • Alpha potentiometers
  • Allen Bradley carbon comp. resistors
  • shielded signal cables for low noise
  • 60's Mullard mustard caps
  • wired PNP positive ground just like the originals
  • battery included

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