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ZVex Vexter Box of Metal Distortion Guitar Effects Pedal

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The ZVex Box of Metal is an aggressive high-gain distortion pedal with a highly effective built-in switchable gate which dramatically reduces noise a...Click To Read More About This Product

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Get the right level of high gain, and lose the unwanted feedback.

The ZVex Box of Metal is an aggressive high-gain distortion pedal with a highly effective built-in switchable gate which dramatically reduces noise and unwanted feedback. Its gain and tonal characteristics are somewhat similar to high-gain tube amplifiers that have been the staple of hard rock and metal sounds since the 80's. On the right, the guitar effects pedal has a true-bypass switch with an indicator LED to bypass the entire effect. On the left is a gate switch, that is only effective when the pedal is on (the gate cannot be used separately.) When the gate's LED (on the left side of the pedal) is on, the gate will be active whenever the pedal is turned on. The gate is very useful for cleaning up any noise between palm-muted chords and lead phrases, but may be switched off to initiate feedback or to stretch out soloed notes that are fading into noise. Switching off and on the gate is silent so the gating action of the distortion pedal can instantly be changed during any part of the performance to fluidly integrate soloing and palm-muted chords.

Gate: Adjust for your playing style. When fully clockwise, palm-muting will create an audible thump and bumping the strings will open the gate. Turn down to make the gate tighter. Gate is unaffected by other controls.
Drive: Sets the amount of distortion. The Box of Metal does NOT clean up. This control goes from hard to very hard. It may crackle when turned-this is perfectly normal.
Treble: adjust for treble content. Use this in tandem with your amp's presence and treble controls to get the precise top-end texture-the presence control is very important on your amp, if you have one.
Midrange: Adjust to accentuate or scoop out mids.
Bass: Sets the bass/sub-bass level.
Volume: Sets the output volume of the pedal.

Note that the LED on the right is for the bypass switch and the LED on the left is for the gate. The Drive and control is based on the original ZVex Super Hard-On gain control, so it may crackle when turned. This is perfectly normal.

Plug your guitar (or any effect's output) into the right hand input jack. Plug the output into an amp or other effect's input. Enjoy in moderation. Watch the output volume setting...with the gate turned on you may not notice just how loud the distortion pedal is going to be until you play! Set the clean sound on your amp for any level of pristine cleanliness to heavy crunch.

The Box of Metal should do very well driving any amount of nominal distortion. The presence control on your amp will have a strong influence on the top-end texture of your ZVex pedal.

  • Gate button
  • Bypass button
  • Volume control
  • Bass control
  • Mid control
  • Treble control
  • Gain control
  • Gate control
  • In/Out jacks (1/4")
  • LED Gate and Bypass indicator
  • Uses one 9V battery (preferably alkaline, but the unit is shipped with a carbon-zinc battery.)
  • Current draw is approximately 10mA.
  • A DC power jack (standard Boss configuration with center negative) is provided on the side of the pedal.
  • Use a high-quality 9V adaptor for all high-gain effects.
  • Warranty:
  • Your ZVex Vexter Box of Metal is warranted for 1 year from date of purchase, or 2 years if you send in your warranty card.

Review Snapshot

by PowerReviews
ZVexVexter Box of Metal Distortion Guitar Effects Pedal

(based on 5 reviews)

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Reviewed by 5 customers

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(4 of 5 customers found this review helpful)


It is What it Says

By The Little Piggy

from Southern CA

See all my reviews

Comments about ZVex Vexter Box of Metal Distortion Guitar Effects Pedal:

Super high gain but manageable down around 10%gain with 500T Gibson pickups. Nice tonal adjustment with B-Mid-T knobs. Hard-on gain circuit makes a little krackle when gain is adjusted, as it is supposed to. Love the rip-roaring, in-your-face, 100MPH winds of this overdrive-fuzz. Gate is a little touchy for me but just need time to get acclimated to how iit behaves.If you want to crank the gain all the way, you won't get much tone.... it gets a bit insane BUT iif you have some low-output pickups it may be perfectly reasonable-Holy metal-shredder, Bat Man!1967 SG and Marshall 1794x

(3 of 3 customers found this review helpful)


Triple Rectifier in a box!

By Rabid rocker

from Central Illinois

See all my reviews

Comments about ZVex Vexter Box of Metal Distortion Guitar Effects Pedal:

I needed something to make my Marshall DSL sound like a boogie for some metal tunes we cover...ths is it! Turn this thing loose on your clean channel and lookout! built in noise gate handles the unrulyness, works like a charm! BUY IT!

(2 of 23 customers found this review helpful)


not good, not even close

By pure_tone65

from Wauseon, Ohio

Comments about ZVex Vexter Box of Metal Distortion Guitar Effects Pedal:

I use mostly overdrives, Menatone to be exact. You owe it to yourself to check em out.blue collar overdrive, and red snapper. ok now for the BOM...i got this thing in the mail, set everything at 12 to check it out....WOW it was bad, fizzie, just badI knew in a few minutes of tweeking that i made a mistake buying this...Im running decent stuff epi les paul, peavy classic 30 for practice(tube)....its on its way back to this site right now.

(1 of 1 customers found this review helpful)


The Best Fuzz Pedal Ever!

By Davi Dexter

from London, England

About Me Experienced

Verified Reviewer


  • Compact Design
  • Excellent Sound Quality
  • Responsive
  • Versatile


    Best Uses

      Comments about ZVex Vexter Box of Metal Distortion Guitar Effects Pedal:

      I wasn't sure at first, but after taking the time to learn how the pedal works, I've really fallen in love with the sound of this pedal.

      First I had to realize that it isn't a Distortion, it's a metal sounding super thick Fuzz pedal with an excellent gate.

      With the gain turned right down it doesn't get clean so you don't need to turn it all the way up to get a good high gain distorted fuzz.

      It's my favorite Fuzz / Distortion pedal and I have most of them.

      My other favorites are Blackstar Blackfire, Blackstar Metal, Damage Control Demonizer, Line 6 Uber Metal, Zoom Tri-Metal and Ibanez Tube King (the newer one).

      I like Fuzz pedals like the ZVex Fuzz Factory for example but although I have fun playing around with them they can be a little too glitchy and noisy, not very thick and probably not suited towards heavier styles like metal. This Box Of Metal Fuzz is excellent and although it took me a while to understand exactly how to get the sounds out of it that I want, it was definitely well worth it and it's one of my favorite pedals to use.

      One other thing I want to mention though is unlike most other pedals, I've found that Reverb pedals make it sound bad - rather than adding a thickness, they seem to make it sound more thin for some reason I don't understand. It sounds best on it's own. After finding this a bit of a shame I realized that it sounds perfect on it's own anyway, it doesn't actually need to have reverb after it like most Fuzz / Distortion pedals. It really does sound great.

      I would really recommend this pedal!! :)


      Nice sound

      By Wizard

      from Texas

      About Me Novice

      Verified Buyer


      • Compact Design
      • Excellent Sound Quality


        Best Uses

        • Home Studio

        Comments about ZVex Vexter Box of Metal Distortion Guitar Effects Pedal:

        The sound is what I was looking for. Great on the high end for lead parts. Chords are a little deep, still sounds great. The gate for only works when it's turned up all the way. If I turn it down it kills everything. I don't use the gate anyway so no big deal for me. I use the Boss noise suppressor which is awesome.

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