

Brutal high gain distortion, built-in noise gate & 4-band EQ
KMA Machines Guardian Of The Wurm Distortion & Noise Gate FX Pedal
Unleash chainsaw chaos, then tame it with precision.
Born from the legendary HM-2 sound and evolved into a fully armed beast, the Guardian of the Wurm delivers massive distortion tones with built in noise gating and tone shaping power that puts total control at your fingertips.
Special Order: This item will be despatched to you within 4-10 business days



Shipping
- Special orders are ordered directly from the suppliers after your purchase
- Orders are then despatched within 4-10 working days
- Free UK RM48 shipping from orders of £120 or more
- Always tracked worldwide shipping
- Plastic free packaging as standard
Returns
30 day peace of mind No-Fuss returns policy, but please read our terms and conditions, returns and refunds policy before placing an order.
Forged in the shadows of Berlin’s underground, KMA Machines' Guardian of the Wurm fuses savage high gain distortion with a lightning fast noise gate and versatile EQ, creating a true modern metal monster. Inspired by the infamous Boss HM-2 and refined through the evolution of KMA’s original WURM Distortion, this is more than just a pedal, it’s an entire tone ecosystem for metal, doom, prog, shoegaze, and beyond.
At its core, the Guardian retains the chainsaw-like attack and growling mids of the original HM-2 but goes way further. The classic active dual-band EQ has been expanded to a powerful 4-band active EQ, each with its own dedicated frequency control, allowing you to surgically dial in your distortion voice with pinpoint accuracy. Whether you're after guttural doom tones, the buzzsaw grind of Swedish death metal, or something more experimental, this pedal lets your sound cut through with clarity and character.
The built in noise gate is fast, musical, and highly tweakable, designed specifically to keep your chugs, trem picked riffs, and chaotic textures tight and focused without killing dynamics. It’s perfect for modern metal tones where clarity is key, and equally useful for taming feedback and hiss in fuzzier, more ambient applications.
An integrated FX loop lets you insert modulation, reverb, or any other pedals between the distortion and gate, opening up endless possibilities for shaping your post gain sound while retaining full control. It also means you can use the gate independently of the distortion, adding value to even the most complex pedalboard setups.
The Guardian of the Wurm isn’t just about heaviness, it’s about control. It’s about crafting huge, rich, harmonically complex distortion tones that can be sculpted to your will and held in check with precision. Whether you’re wielding a guitar, baritone, bass, or synth, this beast adapts to your rig and rewards creativity.
From brutal metal tones to experimental shoegaze textures, the Guardian of the Wurm stands ready, not just to wreak havoc, but to let your tone rule.
Our 'Used' Pedal Reviews
All the reviews we've received for used pedals, so you know you're in safe hands with our pre-owned gear.Want to know more?
- Effect: High-Gain Distortion with Parametric EQ and Noise Gate
- Hand made In Germany
- The next evolution of KMA’s top-seller WURM, the most extensive and configurable HM-2 style unit on the market
- Easy-to-use, yet high-performance Blackmer® VCA-based Noise Gate
- 3 different clipping styles:
Silicon (As HM-2)
Asymmetric (More grit and less drive compression)
Off (Diode lift, perfect for bass and baritones) - Clean Blend, for a tight low end
- Highly configurable 4-band Active EQ, with variable centre-frequencies
- 3 distinct types of HIGH MIDS frequency controls, to tailor your tone
- External Trigger Input, allows Noise Gate control from an external source
- FX-Loop between Distortion and Noise-Gate, for signal-chain flexibility
- Internal control for an input filter, signal-trigger source and Noise Gate response
- Relay-based soft-switching, with variable Gate switching modes
- Weight: 520 g
- Current Draw: 150 mA
- True Bypass
- 9V DC – Centre (-) negative 2.1mm
- Warranty: 2-5 years limited manufacturers warranty
Shipping
- Free UK RM48 shipping from orders of £120 or more
- Orders despatched within 1-2 working days
- Always tracked worldwide shipping
- Plastic free packaging as standard
Returns
30 day peace of mind No-Fuss returns policy, but please read our terms and conditions, returns and refunds policy before placing an order.
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Epic FX and Utility pedals hand built in Germany
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