Z.Vex Mastotron

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Z.Vex Mastotron

Z.Vex

Mastotron

4.8 Expert Rating

Product Info

Article Number: 229053
Brand: Z.Vex
Model: Mastotron
Price: $207.90

* Prices may vary. Check retailer for current pricing and availability.

The Mastotron isn't your average fuzz – it’s got a distinct, almost robotic edge thanks to the pulse width modulation. It’s a fantastic choice for experimental rock, industrial, or anyone wanting a fuzz with a serious low-end thump and a unique sonic signature; it’s not for subtle overdrives.

Product Description

Z.Vex Mastotron, Effects PedalThe Mastotron is a sub-heavy silicon fuzz with some special features. For example, the input impedance can be steplessly adjusted to line level.This allows active or passive pickups to be easily adjusted to the pedal.

  • Volume
  • Tone
  • Fuzz
  • 3-Way bass cutoff
  • PW (pulse width)
  • Relax / Push (input sensitivity)
  • 9 Volt
  • Power consumption: approx. 1 mA

*Note: Power supply is not included*

PROS
  • • Silicon circuitry delivers a unique, gated fuzz character.
  • • Stepless input impedance adjustment accommodates any pickup type easily.
  • • 3-way bass cutoff provides surprising tonal shaping flexibility.
  • • PW control adds a pulsing, almost synth-like dimension to the fuzz.
CONS
  • • Silicon transistors can be noisy, especially at high gain settings.
  • • Limited tonal versatility; excels at fuzz, less adaptable to other distortion types.
  • • Power supply not included adds to the overall cost and setup.

Product Video

Key Features

Distortion Type Silicon Fuzz with Pulse Width Modulation
Controls Volume, Tone, Fuzz, 3-Way Bass Cutoff, PW, Relax/Push
Bypass Type True Bypass
Power Supply 9V DC (center negative), 1mA
Connections 1/4 in Input, 1/4 in Output, DC 9V Input
Dimensions 4.75 in x 2.5 in x 1.75 in

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Frequently Asked Questions

Relax reduces input sensitivity, taming aggressive signals; Push increases sensitivity, driving the fuzz harder and introducing more harmonic distortion.
Absolutely, the adjustable input impedance and bass cutoff make it a surprisingly versatile bass fuzz, offering a thick, sub-heavy tone.
Unlike germanium fuzzes known for their warmth, the Mastotron's silicon transistors provide a more aggressive, gated, and often harsher fuzz tone.

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