Meth Amp

£162.00 (£135.00 ex VAT)

Big Muff-based Voltage Controlled Distortion / VCA

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SKU: meth-amp Categories: , , ,


Frequency Central present Meth Amp – based around the fuzz core of the EH Big Muff pedal. It is capable of producing lovely fuzz and distortion, based on the circuitry of this vintage classic.

It is extremely flexible, and can be used to produce all the following:

  • Wooly warm fuzz
  • Savage distortion
  • Subtle tone shaping with soft saturation
  • Screaming feedback madness
  • External (non-modular) signal amplification

Meth Amp will also work as a great output VCA, with LPG-like tones possible. The clipping diodes have been replaced by red LEDs to take account of the change in power supply from 9V in the original Big Muff to +/-12V in Meth Amp. A bunch of OTAs have been added to the fuzz core, each controlling a different aspect of audio processing:

  • Gain
  • Regen (a new feature – not present in Big Muff)
  • Tone
  • Volume

Thereby, each feature is fully voltage controllable. Additionally, there is a separate x100 preamp which can be used to boost external audio for further processing by Meth Amp.


Width: 12hp

Depth: 35mm

Power: 20mA @ +12v / 20mA @ -12v