Buying Guides
Versatile Muff-Style Fuzz
✓ In stock
Order before 9pm UK time for next-day dispatch!
✓ Free UK delivery!
Royal Mail 24-hour shipping as standard.
✓ 30-day hassle-free returns
Boost Guitar Pedals uses Royal Mail for all domestic deliveries and UPS for international deliveries.
UPDATE – As of 13th December 2024, we are
regrettably no longer able to ship to customers located within the EU or Northern Ireland, due to new GPSR regulations which make it prohibitively expensive for small businesses to operate in the zone.
UPDATE 2 – As of 10th April 2025, we are still shipping to the USA. Please note that due to the volatile political situation relating to tariffs, we may have to cease offering shipping here at short notice.
We offer free 24-hour tracked UK delivery on all orders over £150! Order before 9pm for next-working-day dispatch.
We offer 30-day hassle-free returns so you can pick the item you want safe in the knowledge that if it's not for you, we'll take it back and refund your order.
International deliveries are subject to additional import duties and VAT at your local rate. These charges are payable to the courier at time of delivery. Calculate how much you will need to pay here.
Please note that some orders may take longer to be processed before shipping during the busiest periods of the year.
Customers hold the right to return a product for a full refund if I am notified within 30 days of delivery.
If a product is delivered in a defective or damaged condition, please contact me immediately with details of your order.
To be eligible for a return, the item must be in the same condition
that you received it. It must also be in the original packaging.
Please note, the cost of return delivery is to be paid by the customer. This will be reimbursed if the item is shown to be faulty.
To complete a return, I require a receipt or proof of purchase. Please do not send any items back to the manufacturer, and please do not send any items to me without contacting me first.
Once I have confirmed that I will process your return, please send the item to:
Boost Guitar Pedals (returns)
84 Wolf Lane
Windsor
Berkshire
SL4 4YZ
United Kingdom
My first course of action for faulty items is to replace them like-for-like. If this is not possible, a full refund will be considered as an alternative.
If returned within the 30-day period, your refund will be processed and a credit will be applied to your credit card or original method of payment.
The customer is responsible for paying return shipping costs. Shipping costs are non-refundable unless a product is proven to be damaged or faulty upon delivery.
It is recommended that items should be returned using a trackable shipping service in case the item goes missing en route.
The KMA Machines Chief Disruptor is a massively tweakable Muff-style fuzz, featuring tons of options to get your perfect sound, including 3 Gain modes, active EQ with adjustable and switchable Mids controls, Top-Boost circuit and Clean Blend with Pre- or Post-EQ options.
The Chief Disruptor features 3 gain modes:
Use the Disruption control to crank the gain to your liking, from light drive to crunchy rhythm tones, saturated lead sounds and crushing doom fuzz.
The Chief Disruptor's powerful EQ section gives you control over sculpting your sound. Active Bass and Treble controls give you up to 15dB of boost or cut, while the parametric Mids EQ with adjustable centre frequency (100Hz to 2kHz) gets you from scooped tones to mids-focused and even cocked-wah effects.
You can adjust the Mids EQ on-the-fly using an expression pedal for wah-like quacks or phaser-like sweeps. You can also adjust the Q of the Mids-EQ using the internal trimpot.
Use the Mids footswitch to activate the Mids EQ - perfect for screaming solos, giving your chord work some emphasis or adding some filter action!
Engage the Top-Boost circuit with the toggle switch for a cutting boost that punches through the mix. You can adjust the level of the Top-Boost using the internal trimpot.
Use the Clean Blend control to give your fuzz or distortion tones some of the clarity and attack of your dry signal.
Use the toggle switch to specify whether your dry signal is inserted Pre- or Post-EQ for different characters - Pre-EQ is a more cohesive sound, while Post-EQ ensures your dry signal is unaffected by any EQ tweaks.
