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Z.Vex Mastotron

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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

Overdrive No
Distortion No
Fuzz Yes
Metal No
Item number 229053
148 €
Including VAT; Excluding 20 € shipping
Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

Standard Delivery Times
Delivery approx. between Monday, 25.10. and Tuesday, 26.10.
1
175 Sales Rank

50 Customer Reviews

5 42 Customers
4 6 Customers
3 2 Customers
2 0 Customer
1 0 Customer
4.8 / 5

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A
Small Enclosure, Big Sound
Anonymous 26.03.2017
First off, I use the Mastotron with an analogue synth so my experience might not be fully relevant for any guitarists reading this.

After settling on some essential time-based effects, I decided to invest in some dirt. I toyed around with a ProCo RAT for a while but it was too noisy and the controls weren't exactly to my liking. So I started shopping around again and eventually went with the Mastotron, the rationale being that it had an impedance control (manufacturers take note), was reasonably priced, and came from Z.Vex, who have a reputation for unique designs with a twist.

I'd seen the photos of course but was still surprised by how small the enclosure actually is; imagine Digitech's new line of pedals, only this one's laid out horizontally, is shorter, lighter, and takes batteries - the Mastotron even ships with one. It's probably going to last you a while too because the draw is a mere 1-ish mA. The knobs have a pleasant resistance to them, while on the bottom you'll find rubbery feet on each corner.

Not only does the pedal look sexy, it also delivers soundwise. This thing can make my synth sing or growl (or crackle if I dial in some white noise)! I almost can't get a bad sound of it. There are plenty of knobs to tweak, which some might find intimidating yet is second nature to me as a synth player. From left to right you've got Volume (output volume), Tone (treble), Pulse Width (hard to describe, you'll have to experiment), Fuzz (amount of dirt), Relax-Push (impedance control although it can do more). My current settings are 10, 3, 10, 4, 10 o'clock. Then there's the invaluable Subs toggle which lets you alternate between three different stages of low end presence. I tend to use 3 the most because it retains my dry tone better but in a band setting with a bassist I can see myself switching to 1 more often.

The Subs switch is a bit difficult to reach spontaneously, which is about the only complaint I have. That and maybe a dry-wet blend knob in the future but that's neither here nor there I guess.

In short, this thing works wonders on an analogue synth. It's accessible price-wise, has vast tone-shaping capabilities, and is small enough to fit wherever.
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R
Zip fuzz perfect for bass
RoFro 28.09.2020
I have had my eye on a Wooley Mammoth for a while but know it doesn't work too well with active basses. This has all the features I was looking for, including not being a clone but cheaper and it works well for active and passive basses.

This is not a subtle effect, you can get a good range of options but this really excels at synthy "zip" silicone fuzz sounds.
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Versatile
tmsmtz 26.05.2021
I think this pedal covers much of the same sounds you can get from a dod carcoza. I would highly recommend the carcoza as well, but I feel the Mastotron has a much larger pallette of sounds available and is much better when you need to do lower gain stuff. If I had to have only one drive pedal, it would be the Mastotron. But I dont, so I am keeping the carcoza as well:)
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A
Great on guitar AND bass
Andsvara 30.07.2014
I bought the Mastotron about two years ago after doing a little research on Youtube on fuzz pedals for electric guitars. I wanted to get a pedal that could do vintage Hendrix like fuzz distortion but also heavy distorted sounds associated with Stoner Rock, Sludge and so on. The Mastotron can do all those things!

It features four knobs to control volume, tone, pulse width and fuzz. You can get a lot of different sounds out of this pedal. For example, if you turn the pulse width all the way up and add a some fuzz the sound of your guitar will remind you of 8-bit chiptune music. There is also a relax-push knob to adjust the Mastotron to the amount of output from your pickups. I can easily switch between my Strat with single coils for bluesy stuff to my Ibanez RG with active humbuckers for heavier tones.

And the best thing: since I also play the bass it's just like the much more expensive Wooly Mammoth fuzz for bass guitars. It doesn't really lack any low end and sounds just great. I really like it's sound combined with a wah pedal.

Besides that, the Mastotron is a sturdy pedal. After two years the knobs are a little hard to read, but that's not really a problem. HOWEVER, I really hate that the power input is placed just a few millimeters away from the input jack. That means that i can't turn the input cable any way i want to which can be really inconvenient when setting up a pedalboard. But that's just nitpicking, I highly recommend getting the Mastotron both to guitar and bass players.
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