KMA Machine

KMA Chief Disruptor Fuzz

Regular Price
Sale Price
Regular Price
Sold Out
Unit Price
Translation missing: en.general.accessibility.unit_price_separator 
In Stock

Super-sized, highly tweakable Muff-inspired tones.

Welcome to a new era of the most iconic fuzz sound the world has ever known!

The Big Muff’s huge and super saturated tone defined the signature sound of countless artists over the past decades.

Its circuit had a massive impact on the entire industry and has been modified over and over and over again.

You think it’s all been done, right? Oh boy does KMA have a surprise for you here!

The Chief Disruptor aims to offer more Big Muff-style tones than, well, a Big Muff!

The pedal bundles a huge amount of tone-shaping control, plus three classic Muff-style voices in a single box.

There are master and clean dials, while the oversized 'Disruption' knob handles gain control.

The Vintage Mode will give you every shade of discrete overdrive.

The Tight Mode serves up a more focused and modern tone with less bass and super crisp harmonics.

Heavy Mode is the essence of what we all love about Muffs: heavy, sustaining and crazy thick fuzzy distortion, with bone-shaking lows and chewy mids.

Plus, KMA carefully balanced the gain control to achieve total control of even the slightest harmonic nuances.

Whether you’re looking for low gain drive, crunchy medium gain rhythm tones, singing or saturated lead sounds, the Disruption can cover all your needs!

KMA Chief Disruptor Fuzz features:

• The ultimate Muff-style drive!

• 3 distinctive gain structures.

• Pre or Post Clean Blend for a tight low end.

• Active Bass and Treble EQ.

• Separate Mid EQ with footswitch and frequency control.

• Top-Boost for crunchier harmonics.

• External Expression control: allows for filter or pseudo-phase tones.

• Internal controls for Mid Q and Top Boost Level.

• True Bypass.

• Power: 9V DC.

• Current Draw: 160mA.



Type Fuzz
Condition New
Power 9V DC
Current Draw 100mA
Power supply included No
Manufacturer Warranty 5 years
Shipping & Return


  • Free shipping within Canada.
  • Free shipping to the USA.
  • Free shipping on international orders over 399$.

    Visit the Shipping page for more infos.

Fast Delivery

  • Canada : 1 - 2 business days
  • USA : 1 - 2 business days
  • Rest of the world: 3 - 5 business days.

Hassle-Free Returns

You have 45 days to test your new gear.
If you choose to return it, we’ll send a full refund.
It’s that simple: no bogus restocking fees or charges.

Visit the Returns page for more infos.


Frequently Asked Questions

  • Q : Is this item in stock? +

    A : On product pages, you can find an availability status.

    Products with the mention 'In stock' are in stock and ready to ship.

    Products with the mention 'Out of stock' are not currently in stock.

    For out of stock products, you can ask to get notified as soon as the item is back in stock.

    Enter your email in the ‘Email me when available’ field and you’ll be kept in the loop.

  • Q : Where are you located? +

    A : We’re in Blainville, Quebec, Canada.

    Contact us to schedule an appointment if you’d like to meet.

  • Q : When will my order ship? +

    A : Orders placed before 3pm EST ship on the same business day.

    An update with tracking details will be sent shortly after purchase.

    (Please note: business days don’t include weekends and holidays)

  • Q : How much does shipping cost? +

    A : Shipping to Canada and the USA is free on most orders.

    Shipping to the rest of the world is free on orders over 399$US.

    Visit the Shipping page for more infos.

  • Q : What shipping method do you use? +

    A : We ship with UPS.

  • Q : What payment methods do you accept? +

    A : We accept credit cards and Paypal.

  • Q : Do you charge sales taxes to Canadians? +

    A : Canadian residents are asked to pay sales taxes:

    Alberta: 5%.

    British Columbia: 5%.

    Manitoba: 5%.

    New Brunswick: 15%.

    Newfoundland and Labrador: 15%.

    Northwest Territories: 5%.

    Nova Scotia: 15%.

    Nunavut: 5%.

    Ontario: 13%.

    Prince Edward Island: 15%.

    Quebec: 14.975%.

    Saskatchewan: 5%.

    Yukon: 5%.

  • Q : Are there import charges on orders shipped to Canada? +

    A : No. Canadian customers will not be charged import fees.

  • Q : Are there import charges on orders shipped to the USA? +

    A : No. USA residents will not be charged import fees.

  • Q : Are there import charges on International shipments? +

    A: Shipping prices do not include VAT or other import taxes.

    Customers outside of Canada and the USA are responsible for duties and taxes.

    Orders that come back to the shop as refused by the customer will be refunded minus shipping.

    Please track your shipment to be aware of customs processing and delivery attempts.

  • Q : Can you declare a lower value on customs documents? +

    A : We understand that import fees are an annoying part of international purchases.

    However, we cannot offer to declare a lower value on customs forms.

    Customers outside of Canada and the USA are responsible for any fees that may be charged by their government.