Skip to main content
MusicRadar MusicRadar The No.1 website for musicians
UK EditionUK US EditionUS AU EditionAustralia SG EditionSingapore
Sign in
  • View Profile
  • Sign out
  • Black Friday
  • Artist news
  • Music Gear Reviews
  • Synths
  • Guitars
  • Controllers
  • Drums
  • Keyboards & Pianos
  • Guitar Amps
  • Software & Apps
  • More
    • Recording
    • DJ Gear
    • Acoustic Guitars
    • Bass Guitars
    • Tech
    • Tutorials
    • Reviews
    • Buying Guides
    • About us
Don't miss these
A still from KHDK's Instagram reel with the logo emblazoned over one of the stompbox company's new and as-yet-unannounced and unreleased electric guitar designs.
Guitars KHDK Electronics makes pedals for metal's biggest stars; now it's going to make electric guitars too
Craig 'Goonzi' Gowans and Steven Jones from Scottish metalcore heavyweights Bleed From Within pose with their weapons of choice: Goonzi [left] has an ESP LTD M1000, while Jones has a Caparison TAT Special
Artists Bleed From Within’s Craig ‘Goonzi’ Gowans and Steven Jones on the high-performance shred machines behind their heavyweight metalcore sound 
 (L-R): Fher Olvera (Mana), Cesar Gueikian (Gibson CEO) playing the Gibson Flying V Custom CEO#8, and Sergio Vallin (Mana), performing onstage with Mana at Bridgestone Arena.
Artists Cesar Gueikian on building the SG Kirk Hammett played to honour Black Sabbath and how his designs might shape future Gibson releases
Kirk Hammett plays CEO 4 at Black Sabbath's farewell show, Back to the Beginning. CEO 4 is an SG built by Gibson CEO and president Cesar Gueikian, and it is being auction for Gibson Gives.
Artists The unique SG built by Gibson CEO Cesar Gueikian and played by Kirk Hammett at Back to the Beginning heads to auction
Jackson Pro Series Limited Edition Phil Demmel KV King V: the V-style electric is finished in black-and-white polka dots, and looks good in all settings, against a white background or barroom scene alike.
Artists Jackson and Phil Demmel salute Randy Rhoads with limited run Pro Series King V in polka dot finish
JHS Kilt 10 Special Edition: the silver overdrive pedal is a best-seller for the Kansas-based pedal company and has just been reissued with user-requested mods.
Guitars JHS Pedals revises the “ultimate dirt pedal” with a heap of player-requested features and more headroom
James Hetfield of Metallica plays his iconic white V-style live onstage, wearing his trademark black T-shirt, and black leather vest.
Guitars “He wanted all that at an undoable selling price”: Mesa/Boogie founder Randall Smith confirms rumours that it built James Hetfield a signature model – and it combined three iconic amps in one
Jackson Pro Series Cory Beaulieu King V: refreshed with quilt maple top, signature Seymour Duncany pickups and offered in six and seven-string versions – both with a Floyd Rose vibrato.
Artists Jackson and Corey Beaulieu ante up with the Trivium guitarist's new Seymour Duncan-loaded next-gen King V
Greg Mackintosh of Paradise Lost plays his custom 7-string V live onstage with red and white stagelights behind him.
Artists Greg Mackintosh on the secrets behind the Paradise Lost sound and why he is still trying to learn Trouble’s tone tricks
Great Eastern FX Obsolete Devices Distortion Filter D312A
Guitars Great Eastern FX finds stash of NOS germanium diodes and makes a distortion with a cocked-wah twist
Korn's Brian 'Head' Welch and James 'Munky' Shaffer show off their new Ibanez signature 7-strings
Artists Korn’s Head and Munky unveil new Ibanez 7-strings – and explain how it all comes back to Steve Vai
Alex Skolnick of Testament shows off his signature ESP singlecut as he performs at Belgium's Alcatraz Festival in 2024. On the right, Kiko Loureiro and Dave Mustaine of Megadeth photographed in the corridors backstage at Wembley Arena in 2015.
Artists Alex Skolnick on the time he was on standby for Megadeth – and what to do when you can’t match a player lick for lick
Gibson Custom Kirk Hammett Raven: the Metallica lead guitarist's new signature acoustic is a Halloween-friendly take on the Hummingbird that's limited to 100 units worldwide.
Artists Enter, the Raven: Kirk Hammett’s Custom Shop Gibson acoustic dresses up the Hummingbird for Halloween
Jackson Pro Origins 1985 San Dimas: these retro S-styles take the high-performance electric guitar brand back to the '80s, offering single and dual-humbucker platforms for shred with the choice of rosewood or maple fingerboards – and what about that "Two-Face" black-and-white finish?
Guitars “These guitars empower metal artists with the authentic, crushing tone that built Jackson’s legendary reputation”: Jackson takes us back to the heyday of shred with the Pro Origins 1985 San Dimas series – and what about that Two Face finish?
David Gilmour plays a Black Stratocaster onstage in New York, on a moody stage lit in dark blue.
Artists David Gilmour shares an essential tone tip for guitarists using a whammy bar with a delay pedal
More
  • Black Friday plugin deals
  • JoBo x Fuchs
  • "The most expensive bit of drumming in history”
  • Radiohead Daydreaming
  • Vanilla Fudge
  • 95k+ free music samples
  1. Guitars
  2. Guitar Pedals

Kirk Hammett and David Karon talk KHDK guitar pedals

News
By Michael Astley-Brown ( Total Guitar ) published 11 February 2016

Metallica man putting pedals to metal

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Introduction

Introduction

As they unleash KHDK Electronics upon unsuspecting guitarists across the globe, Metallica’s Kirk Hammett and industry pro David Karon reveal their plans to shake up the effects pedal world

In between making movies, headlining festivals and recording a new album, you’d think Metallica’s longtime lead guitarist Kirk Hammett would struggle to fit any more on his plate.

The pair made waves with Hammett’s signature Randall amps, but KHDK Electronics affords them complete creative control

Yet when old friend and industry vet David Karon suggested a new venture - a pedal company - Kirk jumped at the chance. First introduced through Anthrax’s Scott Ian, the pair had already made waves with Hammett’s signature Randall amps, but KHDK Electronics affords them complete creative control, and provides the keys to unlocking the “unholy sounds” inside Kirk’s head.

With three pedals already under their belt - Kirk’s signature Ghoul Screamer, the No 1 Overdrive and No 2 Clean Boost - Kirk and David gave us the lowdown on why KHDK has them so excited…

Page 1 of 6
Page 1 of 6
Kicking off KHDK

Kicking off KHDK

What made you want to start KHDK?

Kirk Hammett: “Well, it actually was not my idea to start a pedal company; it was the DK - Dave Karon - and we were just sitting around, talking about how much easier it is to do stuff these days because of the internet and computers and technology and whatnot, and all of a sudden, he said, ‘You know what? We should start a pedal company,’ and I said, ‘Good idea; let’s do it!’ [laughs]

I see it as another avenue of expression, and a good way to experiment with things

“It was along the lines of, ‘Let’s start a record company; people do it all the time!’ But when I agreed to start this pedal company, I realised that it’s not like a record company, and not a whole lot of people do it! [laughs]

“I see it as another avenue of expression, and a good way to experiment with things, and a good way to learn about other stuff, and I’m learning what the limits are and what limits can be broken, and we have some really super-cool ideas that we’re sitting on that will slowly come out, and I’m super, super-excited about it all. More excited than I ever expected to be, honestly.”

Page 2 of 6
Page 2 of 6
Ghoul gain

Ghoul gain

What was the thought process behind the Ghoul Screamer?

KH: “Well, I always thought that the Tube Screamer was great, and a classic sound, but after using one for 30-odd years or so, there have been other times where I’ve thought, ‘Wow, I wish I could get a little more bottom out of it,’ or, ‘if I could just compress it a little bit more for just this little situation,’ or, ‘if I could just get a little bit more of the Tube Screamer sound.’

“I really wanted to just open it up and try and expand the potential of it. And so we expanded every knob: we took the tone knob - added top, added middle, added bottom - we took the gain, and added some compression and ways to work with that. And so, basically, we added more to it.”

David Karon: “We increased a lot of the range of the pots - so, the gain pot has less gain in the minimum for more clean boost and more gain in the maximum. When you have the switches all up, it’s like a traditional 808 with high-end components, and then, when all the switches are down, the bass increases, the overdrive has more bottom-end, the highs widen, it sounds brighter.

“I’m sure that people out there are screaming, ‘Heresy! Why is he messing with such a classic sound?’

“The body switch is a mid-enhancer, so it makes it more present. And then the compression switch is like a headroom, so you have three versions of headroom: one being less, two and then three being the most. So, it’s to optimise the pushing of your tubes on your amp.”

KH: “I’m sure that people out there are screaming, ‘Heresy! Why is he messing with such a classic sound?’ I might be messing with a classic sound, but fucking hell, how are we gonna move forward if someone doesn’t cross the line somewhere?

“It’s like music: someone has to cross the line for it to get anywhere. Sometimes I feel like an anarchist, because I’m taking stuff and I’m asking Dave and our engineer Antonin [Salva], and saying, ‘Hey, well, can we do this?’ And they’ll say, ‘Well, we can do this,’ or, ‘If we do this, we’re gonna screw this up and won’t be able to do this’ and whatnot.”

Page 3 of 6
Page 3 of 6
No 1 pedal

No 1 pedal

Have you used the pedal with Metallica yet?

KH: “You know, we haven’t really toured since it came out, but I’ve been using it in rehearsals, and I plan to use it while we record… I want to use everything that we’re making to just mix the whole recording process up; I want to use this stuff to shake it all up and start it in a different place. I just want a new starting spot.”

What was the thinking behind the No 2 Clean Boost and No 1 Overdrive?

If you hook up the No 1 pedal and the Ghoul Screamer together, oh my god, it’s just next level

KH: “Something that’s always needed is a clean boost. Always. If you’re a guitar player in a band and a riff is coming up and you want it to be loud and heavy, step on that clean boost. You’re in a band, and your guitar solo’s coming up? Step on that boost. It’s like air: you need oxygen to breathe; when you’re in a band, you need a boost. [laughs]

“The distortion pedal is based on this obscure pedal that I found in Europe that was only made for eight months or so, and then the maker just stopped making it. And I can understand why: he probably didn’t sell any, because it’s so over-the-top and weird. I had been using this particular pedal for a while, and it was starting to show signs of breaking down, so it was imperative for us to design something along those lines.

“We made it a little bit quieter, a little bit more usable, a little bit more functional. I love how the distortion turned out; and if you hook up the No 1 pedal and the Ghoul Screamer together, oh my god, it’s just next level. Watch out, because it’s an unholy sound!”

Page 4 of 6
Page 4 of 6
Fuzz factor

Fuzz factor

What other products can we expect?

KH: “Well, I have a lot of great ideas, and I’m really afraid to mention them right now, because someone else might jump on top of them! So, at this point, I really can’t say very much, but without a doubt, I’m guaranteeing you that some of the stuff that’s going to be coming out in the next year or two is gonna be pretty different, radically different.”

We’ve got 15 different products in the works - I’m sending a couple of fuzz pedals out to Kirk today for testing

DK: “We’ve got 15 different products in the works - I’m sending a couple of fuzz pedals out to Kirk today for testing. We go through a lot of ideas. Our biggest limitation is staying analogue, so some of the ideas we’re still trying to achieve in an analogue format - we don’t want to jump into the digital world yet!”

We have to ask: is there a wah coming?

KH: “Well, of course! I mean, come on: look who you’re talking to! [laughs]”

You sent pedals out to the likes of Joe Duplantier, Dan Donegan and Rob Caggiano; why did you choose those players in particular to test them out?

DK: “Kirk and I are both just massive fans of Gojira, and they’re just such great guys to work with, and Joe has just got such an intricate, different approach to guitar playing, and Kirk’s great friends with him, so he was an immediate choice.

“Dan and Rob I’ve been working together for almost 15 years now, so they’re really great friends, very trusted ears for me that will be honest with whatever we’re doing and just say it like it is, and not just try to candy-coat anything. The honest voice is what we need, and they have really discerning taste for their tone.”

KH: “The great thing is that they’re just loving it. John 5 just shot me a text, and I said, ‘Hey bro, I’ll send you whatever you need.’ ’Cos he’s a good friend of mine, too. My goal is to outfit all my friends, for sure! [laughs]”

Page 5 of 6
Page 5 of 6
Building a legacy

Building a legacy

What are your ambitions for the company?

DK: “This is something we want to leave to our children - I mean, obviously, Kirk has a massive legacy - but he wants to leave this company as a legacy, as do I, and we have major plans: we’re looking at releasing at least a few more pedals in 2016. We have at least five that are potentially ready to go.”

I’m just really inspired, and hopefully through my inspiration and my excitement, it’ll catch on with other players

KH: “We’re all very inspired and very, very excited about this. I think it’s the first time you’ll see a pedal company actually being driven by an actual guitar player, like Tom Scholz and Rockman - I really don’t know of any other guitar players out there who are actually making pedals.

“I know there are a lot of guitar players out there making amps, there are a lot of guitar players out there making guitars and whatnot, and a lot of players out there endorsing stuff, but the fact that I’m making pedals, and we’re trying to just mix it all up, it’s fun for me and it’s super-cool, and Dave and I are really, really enjoying it.

“It’s a big surprise, and I’m just really inspired, and hopefully through my inspiration and my excitement, it’ll catch on with other players and we can just spread the good, good vibe.”

Page 6 of 6
Page 6 of 6
Michael Astley-Brown
Michael Astley-Brown
Social Links Navigation

Mike is Editor-in-Chief of GuitarWorld.com, in addition to being an offset fiend and recovering pedal addict. He has a master's degree in journalism, and has spent the past decade writing and editing for guitar publications including MusicRadar, Total Guitar and Guitarist, as well as a decade-and-a-half performing in bands of variable genre (and quality). In his free time, you'll find him making progressive instrumental rock under the nom de plume Maebe.

Stay up to date with the latest gear and tuition. image
Stay up to date with the latest gear and tuition.
Subscribe and save today!
More Info
Deals not to miss
A still from KHDK's Instagram reel with the logo emblazoned over one of the stompbox company's new and as-yet-unannounced and unreleased electric guitar designs.
KHDK Electronics makes pedals for metal's biggest stars; now it's going to make electric guitars too
 
 
Craig 'Goonzi' Gowans and Steven Jones from Scottish metalcore heavyweights Bleed From Within pose with their weapons of choice: Goonzi [left] has an ESP LTD M1000, while Jones has a Caparison TAT Special
Bleed From Within’s Craig ‘Goonzi’ Gowans and Steven Jones on the high-performance shred machines behind their heavyweight metalcore sound 
 
 
 (L-R): Fher Olvera (Mana), Cesar Gueikian (Gibson CEO) playing the Gibson Flying V Custom CEO#8, and Sergio Vallin (Mana), performing onstage with Mana at Bridgestone Arena.
Cesar Gueikian on building the SG Kirk Hammett played to honour Black Sabbath and how his designs might shape future Gibson releases
 
 
Kirk Hammett plays CEO 4 at Black Sabbath's farewell show, Back to the Beginning. CEO 4 is an SG built by Gibson CEO and president Cesar Gueikian, and it is being auction for Gibson Gives.
The unique SG built by Gibson CEO Cesar Gueikian and played by Kirk Hammett at Back to the Beginning heads to auction
 
 
Jackson Pro Series Limited Edition Phil Demmel KV King V: the V-style electric is finished in black-and-white polka dots, and looks good in all settings, against a white background or barroom scene alike.
Jackson and Phil Demmel salute Randy Rhoads with limited run Pro Series King V in polka dot finish
 
 
JHS Kilt 10 Special Edition: the silver overdrive pedal is a best-seller for the Kansas-based pedal company and has just been reissued with user-requested mods.
JHS Pedals revises the “ultimate dirt pedal” with a heap of player-requested features and more headroom
 
 
Latest in Guitar Pedals
JHS Kilt 10 Special Edition: the silver overdrive pedal is a best-seller for the Kansas-based pedal company and has just been reissued with user-requested mods.
JHS Pedals revises the “ultimate dirt pedal” with a heap of player-requested features and more headroom
 
 
A Neural DSP Nano Cortex amp modeller on a pedalboard
Neural DSP just sweetened the deal when you pick up a Nano Cortex for Black Friday - help yourself to a plugin of your choice free of charge
 
 
IK Multimedia TONEX Pedal Bass Edition
"With a DI box and some time to learn the layout, it's a robust, reliable and ridiculously well-equipped powerhouse for the stage and studio": IK Multimedia TONEX Pedal Bass Edition review
 
 
Great Eastern FX Obsolete Devices Distortion Filter D312A
Great Eastern FX finds stash of NOS germanium diodes and makes a distortion with a cocked-wah twist
 
 
Electro-Harmonix Pico Atomic Cluster: the new glitch/synth mini-pedal from the storied NYC pedal brand
EHX expands its Pico series with the Atomic Cluster Spectral Decomposer – a mini-pedal that sounds so wrong its right
 
 
Third Man Hardware x JHS Pedals Troika: the new collab from Jack White's gear brand is a "studio-grade" delay designed for vocals, guitars and other instruments, for the stage or studio, and is available in yellow or black.
Jack White used the prototype on No Name and now you can buy it – meet the JHS Pedals x Third Man Hardware Troika delay
 
 
Latest in News
Pope Leo XIV, Robert Prevost arrives on the main central loggia balcony of the St Peter's Basilica
Is God a DJ? Pope makes appearance at religious rave in Slovakia
 
 
Harley Benton Custom Line King-12CE NT: the cutaway jumbo 12-string features an all-maple build, gold hardware and Fishman electronics
Harley Benton unveils Custom Line jumbo 12-string with a $350 price tag that’s for the Byrds
 
 
Positive Grid Mini on a shelf
Positive Grid just set the tone for Black Friday with up to 30% off their range of top-rated smart amps and software - including the Spark 2, Spark Mini & Bias X
 
 
Brand New Heavies and Prince
"I thought, 'I can’t play now'": The Brand New Heavies say that Prince came to watch them three times
 
 
Simon Cowell and Bob Dylan
“I would’ve gone, ‘Forget it’": Bob Dylan would fail American Idol audition, according to Simon Cowell
 
 
Warner Music Group logo on a phone
"Artists and songwriters will have full control”: Warners and Suno link up to create new legal AI platforms
 
 

MusicRadar is part of Future plc, an international media group and leading digital publisher. Visit our corporate site.

Add as a preferred source on Google
  • About Us
  • Contact Future's experts
  • Terms and conditions
  • Privacy policy
  • Cookies policy
  • Advertise with us
  • Accessibility Statement
  • Careers

© Future Publishing Limited Quay House, The Ambury, Bath BA1 1UA. All rights reserved. England and Wales company registration number 2008885.

Please login or signup to comment

Please wait...