KMA Audio Machines Wurm - Distortion


KMA Audio Machines

Its dark legend is told for thousands of years - an old creature, full of grief and malice he will bring destruction and terror over the tracts of land. Feel the fear and the destructive energy of that ancient monster with the WURM.

KMA Audio Machines will bring you the legendary distortion sound of the out of production HM2 MIJ model. Its sound was a key element of the Swedish chainsaw metal invented by Bands like Dismember and Entombed. We took the ingredients and developed a way more flexible distortion pedal. We kept the classic active EQ section and added two more bands to give you a wider range of tones to tailor your evil and gritty distortion sound. Each band has an internal trimpot to change the center frequency and fine-tune your sound. To switch between the original HM2 high control and the KMA Audio Machines designed EQ band, we added an internal DIP SWITCH. Switch 1 activates the WURM EQ High Mids Mode while switch 2 is in off position. To get the HM2 chainsaw high mids put switch 1 in off position and switch 2 in on position, crank the LOWS and the HIGH MIDS to hear the chainsaw. Activating switch 1 and 2 gives you three bands, which are controllable via the HIGH MIDS control. TERROR dials in the malice and evil distortion sound you are searching for! Crank it and you will feel the rageous ancient WURM.


Each EQ has a trim pot to shift the center frequency of the bandpass. Shifting the center frequency changes the bandwidth of the bandpass. That means, when you raise the center frequency the bandwidth will increase and vice versa.

DIP Switch

The internal DIP SWITCH will activate/deactivate the classic HM2 EQ for the HIGH MIDS to get the Swedish chainsaw sound or the HIGH MIDS WURM EQ for total control and fine tuning of your tone.

Every pedal is designed, assembled, silkscreened, tested and numbered by hand in our small workshop. We use external manufactured PCBs to guarantee our high-quality standard and keep the price of our pedals reasonable. The use of an indestructible powder coated die-cast enclosure ensures a maximum durability. We trust in our environment and want to keep it clean, that's why none of our pedals have the possibilities to be powered by batteries.

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