Okko unleashes Diablo GH Gregor Hilden Signature Overdrive pedal

Top German pedal brand Okko FX as collaborated with guitar collector and blues guitarist Gregor Hilden to create the Diablo GH, an overdrive and boost pedal “for tone connoisseurs”.

The pedal is based on Okko’s regular Diablo, but with a few extra adjustments, including Dyn(amic), to adjust an internal voltage doubler from six to 18 volts for tweaks to sag and compression; Feed, for adjusting lower frequencies; Body, to add low mids; input and mids mini-switches; plus an independent footswitchable clean boost with tone control, positioned post-overdrive.

Phewph, that’s a lot of flexibility. The Diablo GH is available now for €249/$249 from Okko FX.

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Michael Astley-Brown

Mike has been Editor-in-Chief of GuitarWorld.com since 2019, and an offset fiend and recovering pedal addict for far longer. He has a master's degree in journalism from Cardiff University, and 15 years' experience writing and editing for guitar publications including MusicRadar, Total Guitar and Guitarist, as well as 20 years of recording and live experience in original and function bands. During his career, he has interviewed the likes of John Frusciante, Chris Cornell, Tom Morello, Matt Bellamy, Kirk Hammett, Jerry Cantrell, Joe Satriani, Tom DeLonge, Radiohead's Ed O'Brien, Polyphia, Tosin Abasi, Yvette Young and many more. His writing also appears in the The Cambridge Companion to the Electric Guitar. In his free time, you'll find him making progressive instrumental rock as Maebe.