PedalBro

Fuzz · ZVEX

ZVEX Mastotron

The ZVEX Mastotron is a silicon-based fuzz pedal featuring a Relax/Push impedance toggle and a Subs switch, offering temperature stability compared to germanium-based fuzz designs.

  • 9V DC · center −
  • 1 mA
  • Analog
  • Mono
New
from $159
Used (asking)
from $115

The rundown

Highlights

  • Silicon fuzz circuit with temperature stability
  • Relax/Push impedance toggle switch
  • Subs switch for additional tonal control
  • Runs on 9V DC with minimal power draw (1 mA)
  • Compact format, made in the USA

Best for

Players seeking a fuzz pedal with stable performance across varying conditions who prefer silicon circuitry and appreciate additional tonal shaping options.

Quick facts

Power
9V DC
Current draw
1 mA
Polarity
Center negative
Dimensions
118.9 × 60.5 mm
Stereo
No
MIDI
No
Expression input
No
Status
In production

Where to buy ZVEX Mastotron

$159 lowest new price · Reverb

Used listings asking $115–$189.59, median $139.99 (9 listings). Asking prices, not sold prices.

Current offers
SellerConditionPriceLink
ReverbUsed$115View
ReverbUsed$120View
ReverbUsed$132.04View
ReverbUsed$139.37View
ReverbUsed$139.99View
ReverbNew$159View
ReverbNew$159View
ReverbNew$159View
ReverbNew$159View
ReverbUsed$173View

Prices last checked 22 hours ago. Links to sellers are affiliate links.

Frequently asked questions

What power supply does the Mastotron use?

The ZVEX Mastotron runs on a 9V DC supply with center-negative polarity and draws only 1 mA of current.

How large is the Mastotron?

The ZVEX Mastotron measures 118.9 x 60.5 mm.

Does the Mastotron support stereo or MIDI?

The ZVEX Mastotron does not have stereo or MIDI capability.

Similar pedals

Same type, similar features.

Specs from pedalfilter. Summary written by PedalBro from those specs and public descriptions.

Page last updated September 29, 2026.