KMA Machines WURHM

Orange Terror From Below


Most sizes of shirts are now allocated, however if you have any queries please do get in touch with the promotions team who would be only too happy to assist:

The closing date for claims to be received is no later than February 10. 2021


Calling a pedal legendary or a cult classic is often stretching the truth, but when it comes to the Boss HM-2 MIJ it’s just spot on. From its absolutely brutal and grinding distortion tones it birthed an entire metal genre, while its thick walls of gain and sustain also saw it solidify its place within shoegaze and prog rock. KMA Machines have never tried to hide the fact that the WURM Distortion is an unabashed sonic love letter to this filthy box of doom and gloom, but taking it much further and pushing the envelope of how destructive it can be.

So, KMA only saw it fitting to adorn our mega metal monster in the iconic black and orange colors, not only to really profess love and admiration, but to also celebrate the milestone of 1000 WURM units that have now been made.

Only 200 WURHM Distortion pedals will be created available in this finish plus in addition, every purchaser of a WHURM can claim a limited-edition super cool WURHM T-Shirt. So, if you’re looking for a modern and versatile take on this seminal shred machine that actually looks as evil as it sounds, then now is your chance!

  • Limited Orange Edition – 200 units worldwide
  • Free* T-Shirt offer
  • A modern take of the classic and now sought-after Japanese Boss HM2 MIJ
  • Wide range of metal-distortion tones – from chainsaw, to plain evil and gritty
  • Highly configurable 4-band active EQ
  • 3 distinct types of HIGH MIDS frequency controls to tailor your tone
  • True-Bypass switching
  • Handmade in Berlin, Germany
  • Powered by opt. 9V PSU
        (9V DC, center -, 2.1mm, ~10mA current draw)


To claim your FREE* limited-edition super cool WURHM T-Shirt, fill in the form lower on the page and we’ll do the rest.

*T&C Apply – see below


With the WURHM, KMA Machines brings you the legendary distortion sound from the out of production Boss HM2 MIJ pedal. Its sound was a key element of the Swedish chainsaw metal genre, invented by Bands like Dismember and Entombed.

Taking the essential ingredients of this classic, while in the process developing a way more flexible metal-distortion pedal, KMA kept the standard active EQ section and added two more bands, giving a much wider range of tones to tailor your evil and gritty distortion sound. Each band has an internal trim-pot to change the center frequency and fine-tune your tone.

To switch between the original HM2 high control and the KMA Machines designed EQ bands, KMA added internal DIP switches for even more tonal variations.

Activating Switch 1 alone selects the WURHM high-mids mode. To get the classic HM2 ‘chainsaw’ high-mids character however, put switch 1 in the off position and switch 2 to on, crank the LOWS and the HIGH MIDS and rip that Swedish forest to shreds.

Activating both Switch 1 and 2 together though gives you three bands, which are controllable via the HIGH MIDS control. TERROR dials in the malice and the evil distortion sound you are searching for! Crank it up and you will feel the rage of the ancient WURHM.


WURHM T-Shirt Offer

The offer is now closed. Date for claims to be sent was no later than February 10. 2021

If you have any queries, please get in touch with the promotions team who would be only too happy to assist:

Terms and Conditions

This exclusive free WURHM t-shirt offer is subject to a valid purchase of a KMA Machines WURHM pedal during the offer period, Purchases must be made between November 26. 2020 and January 31. 2021, from your local participating and authorized KMA Machines dealer.

Offer is available worldwide, but limited to one t-shirt per applicant. It will be available free, without obligation and only while stocks last. The offer may not be mixed with any other offer and is only valid in the country of purchase (except where prohibited, taxed or restricted by law). The promotional item cannot be redeemed for a cash alternative and is not exchangeable or refundable. 

To qualify for this offer, you must be 18 years of age or older and only the actual original purchaser of the qualifying product may participate in this claim. Claims must also be received by no later than February 10. 2021.

KMA Machines and Audio Distribution Group ApS reserve the right to modify or withdraw this promotion at any time.

The free WURHM t-shirt will only be dispatched to addresses in the country of purchase and supply. You must provide us with complete and accurate delivery address information. For the avoidance of doubt, this includes not only the address that your order is going to but also the name of the recipient. We cannot be liable for any delays to your delivery of your claim to the wrong address or the wrong person as a result of you supplying us with incomplete or inaccurate information.

While we do our best to ensure every eligible claimant will receive a free WURHM t-shirt in the size they have requested, there may be instances where we are unable to fulfil the offer due to availability or circumstances beyond our control. We are also not responsible for payment of any duties or taxes your country of residence may impose on this offer.

Delivery will usually be well within 6-8 weeks from the claim date, but may in exceptional cases be longer. If you have not received your free WURHM t-shirt after 60-90 days of receiving a confirmation email, please contact to check status or if you have any questions about the claim process. Claims from dealers, sub distributors and their employees are strictly forbidden and will not be honored.

Your details may be kept on file and used by KMA Machines for direct marketing purposes and for possible future offers. This information will not be given to third parties. If you do not wish to be contacted in the future (apart from in relation to this offer) please email us at You can unsubscribe from KMA Machines emails at any time.

By taking advantage of this free WURHM t-shirt offer, you accept the above terms and conditions.