Okko Diablo GH

$252.37 Price Tier: High-end

1 Critic Review

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Page last updated Jun 10, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated June 10, 2026.

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5.0 (3)

$252.37 2 available New

$250.00 2 available Used

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Average Price: $251

High-end/Boutique

$50

$176+

Price Tier

In the Overdrive Effects Pedals category, Okko Diablo GH is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

Budget

Standard

High-end

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Description

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Gregor Hilden, top blues guitar player, collector and dealer of finest vintage guitars and amps – this man knows TONE. More than 10 years ago he bought one of the first Diablo pedals in a little shop in Germany and kept the Diablo as THE overdrive ever since that day, playing it in hundreds of shows and the numerous guitar demo videos in his GregsGuitars Youtube channel. High time to say THANK YOU with this signature model.

The Diablo GH offers exceptional dynamic qualities and super-clear, warm tone in a precisely adjustable 2-in-1 Overdrive and Boost pedal. Unlike many other overdrives it works perfectly with clean amps. The GH model is based on the classic Diablo but comes with a few tweaks and a set of new controls that affect the "feel" of the pedal, the way how it reacts to your playing.

Product specs

Brand	OKKO
Model	Diablo GH
Finish	Gold
Year	2010s
Categories	Overdrive and Boost Pedals

FAQs

What type of tones can I expect from the Okko Diablo GH overdrive pedal?: The Okko Diablo GH provides a dynamic range of tones, from transparent clean boosts to rich, harmonically complex overdrives. It's known for maintaining the character of your guitar while adding a touch of grit and sustain, making it versatile for blues, rock, and beyond.
How does the Okko Diablo GH compare to other overdrive pedals in terms of gain?: The Okko Diablo GH offers a wide gain range, allowing users to dial in subtle overdrive or more pronounced distortion. Its unique circuit design provides a responsive and dynamic gain structure, setting it apart from many traditional overdrive pedals.
Is the Okko Diablo GH suitable for use with both single-coil and humbucker pickups?: Yes, the Okko Diablo GH is designed to work well with both single-coil and humbucker pickups, providing clarity and definition while enhancing the natural sound of your guitar.
Does the Okko Diablo GH pedal require a specific power supply?: The Okko Diablo GH operates on a standard 9V DC power supply, commonly used with most guitar pedals, ensuring easy integration into your existing pedalboard setup.
Can the Okko Diablo GH be used as a clean boost?: Yes, the Okko Diablo GH can function as a clean boost, offering a transparent increase in volume and clarity without adding unwanted distortion, making it ideal for solos or accentuating specific parts of your performance.

Videos

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session

Okko Diablo GH (Gregor Hilden Verzerrer im Test)

session

Okko Diablo “Gregor Hilden Signature” / Part1 /with Fender CS Strat 54)

GregsGuitars

Okko Diablo GH Gregor Hilden | Haar Guitars Demo

HaarGuitars

Quick Test - Okko Diablo GH Signature Overdrive Pedal

gitarrenonkel

Okko Diablo “Gregor Hilden Signature” / Part4 / Custom Shop Tele)

GregsGuitars

OKKO Diablo GH test

Michal Beneš

Okko Diablo “Gregor Hilden Signature” / Part5 / Tokai ES 156 SB / Tone Vari)

GregsGuitars

Okko Diablo “Gregor Hilden Signature” / Part2 /with Fender CS Strat 54)

GregsGuitars

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Okko Diablo GH.

Features and functionality

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The Okko Diablo GH is praised for its dynamic qualities, offering a super-clear, warm tone suitable for both single coil and humbucker pickups when used with clean amps.
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The Drunk Beaver BAT offers a range of clipping options, with LED mode providing a clearer and fuller tone compared to stock silicon, ideal for RAT enthusiasts.
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The ProCo RAT is praised for its compactness due to top-mounted jacks, which can save pedalboard space compared to the Okko Diablo GH.
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Comparisons

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The EHX Hot Tubes pedal is noted for its ability to produce an instant AC30 chime, with a tone control that mimics a 4-hole Marshall's channel selection.
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Users find the TS9 Tube Screamer less favorable with clean amps due to its low cut characteristic, which may require a preamp for enhanced tone.
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The OCD is noted for being the warmest among OD-1, Soul Food, and OCD, offering a versatile range from light overdrive to thick distortion.
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Owners highlight that the Soul Food is the thinnest overdrive pedal, suggesting it functions better as a clean boost rather than for thick tones.
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The Okko Diablo GH is considered by some to be overpriced, with one user noting that its cost could cover the price of multiple RAT pedals.
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Use cases and applications

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The Blackstone Mosfet OD is specifically designed for clean amps, with voicing pots for customization with single coils or humbuckers.
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Dual-channel pedals like the Joyo King of Kings and JHS Double Barrel are recommended for versatility between overdrive and distortion with clean amps.
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The OCD is particularly effective for achieving a scratchy distortion tone, often associated with single coil neck pickups and volume adjustments.
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For those seeking a multi-functional pedal, a RAT is recommended due to its dual capability as both an overdrive and fuzz pedal.
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Value and pricing

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The EHX Hot Tubes is considered an affordable option at $40-50, offering versatility and quality that exceeds its price point.
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User experience

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Users suggest that the Boss SD1 is ideal for achieving a fuzzy, scratchy sound, similar to the tones in the referenced YouTube tracks.
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The Okko Diablo GH may seem appealing in professional demos, but some users prefer rougher, more straightforward demos to gauge real-world performance.
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Critic Reviews

Okko unleashes Diablo GH Gregor Hilden Signature Overdrive pedal | MusicRadar

musicradar.com

The Okko Diablo GH is a versatile overdrive pedal that stands out for its flexibility, boasting features like an internal voltage doubler and various tonal adjustments that cater to tone aficionados. However, while it excels in providing a rich, dynamic sound, some players might find its controls a bit complex for straightforward applications. At €249/$249, it offers great value for those seeking nuanced tone shaping, but it may not be the best choice for those who prefer simplicity in their pedalboard setup.

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