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Japan's KGR Harmony makes uniquely textured high quality hand-crafted cast iron pedals using traditional techniques

Best of BrandsBig Muff Style FuzzBlues Driver Style OverdriveBoostBoost and OverdriveFuzzKGR HarmonyOverdrivePreAmpSilicon FuzzTimmyTubescreamer Style Overdrive+-
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2025-GPX-KGR-Harmony-Quad-700.jpg

I’ve been meaning to cover these KGR Harmony pedals for a while - since I first saw them on the Coast Sonic newsletter. If I recall correctly EarthQuaker Devices did some custom limited editions of its Plumes and Blumes Overdrive Pedals - in collaboration with the same KGR Harmony! I just can’t recall which of those mailers I saw first.

 

In any case these pedals are hand-made using traditional Japanese techniques including  Nanbu-tekki. and utilising a proper iron foundry to make those very distinctive enclosures - which all have incredible surface textures and patterns. Typically referred to as Nanbu Ironware.

 

My favourite looking one also happens to be the priciest of the quartet - the Blue Starry Night edition of the ARARE Overdrive - which is also the most interesting of these 4 pedals for me, while I’m also tempted by the KUROFUNE Fuzz. I’m not sure I need another clean boost or 808 overdrive variant. While each of these is very attractive - particularly in the looks department. While the same attention to detail has been lavished on the circuits too - which have distinctive textures also.

 

I seem to be a little behind the times here - as my friend Dave Simpson covered most of these some 6 years ago now - not sure how I overlooked those then! But as always - better late than never!

 

My featured quartet is :

  • ARARE 3-Band Overdrive / Preamp - in Blue Starry Night / Tsukihoshi Yoru edition - $430
  • IRON808 Classic Screamer style Overdrive - in Light Tea Green edition - $250
  • KUROFUNE Ram’s Head style Muff Fuzz - in Vintage Gold edition - $289
  • SHIZUKU Transparent Boost - in Mizumari Water Droplet Blue edition - $189

With the amount of hand-crafting that is involved in the making of these they’re mostly priced a little higher than other boutique pedals of a similar stripe. These are proper ’Art Pedals’ built to last a lifetime!

 

Further details and demos below :

2025-GPX-KGR-Harmony-Quad-700.jpg

ARARE 3-Band Overdrive / Preamp - in Blue Starry Night / Tsukihoshi Yoru edition - $430

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Controls - Gain, Volume, Low, Mid, High.

 

A really expressive and touch-sensitive, versatile and musical overdrive with enhanced shaping via its 3-Band EQ - largely somewhere between a Timmy and a Breaker.


IRON808 Classic Screamer style Overdrive - in Light Tea Green edition - $250

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Controls - Gain, Volume, Tone.

 

Another cool take on the classic 3-knob screamer - well voiced and exquisitely textured.


KUROFUNE Ram's Head style Muff Fuzz - in Vintage Gold edition - $289

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Controls - Volume, Fuzz, Tone.

 

A fairly raw and visceral sounding Ram's Head style Muff - sounds really immense and full-flavoured.


SHIZUKU Transparent Boost - in Mizumari Water Droplet Blue edition - $189

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Controls - Gain, Volume.

 

An elegant Transparent Boost - described as a  transparent boost tone that expands like a single droplet falling on the surface of water, spreading its ripples!


2025-GPX-KGR-Harmony-Quad-700.jpg
Stefan Karlsson
Posted by Stefan Karlsson
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Stefan Karlsson
Stefan Karlsson
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