Crazy Tube Circuits Unobtainium RAW Dual Channel Amplifier Overdrive Pedal

£295.00

On the Menu for January 2026 are the Crazy Tube Circuits Guitar Pedals. These are fresh in, hand picked by the chef, & cooked to perfection. A tasty number we can deliver straight to your door, serving orders quickly and securely. For more info on Crazy Tube Circuits New Guitar Pedals, please read on for full details, demos, videos, reviews & to order online


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The Crazy Tube Circuits Guitar Pedals are fresh in for Jan. The Just Pedals Chef is dishing up hot gear all over the UK, served straight to your door, quickly and securely, For more info on tasty Crazy Tube Circuits New Guitar Pedals, please read on for full details, ingredients, reviews and where to order in the UK.

The Unobtanium RAW is a dual overdrive pedal an all-analogue faithful reproduction of the legendary Klon Centaur overdrive voicing on the right, and two unobtainable tube amplifier voicings on the left.

Key Features

  • Legendary Tone – The faithful K-style tone that comes from this pedal is designed to inspire.
  • Pure Dumble Overdrive – With the help of the ‘60s NOS Mullard/Valvo OC45 Germanium Transistors, you can be sure that this pedal delivers authentic Dumble!
  • Passive Effects Loop – The passive effects loop gives you the option to connect your beloved pedals between your booster/overdrive and amp in a box or use the two sections as separate and independent effects when using an external bypass switcher/looper.
  • Power Up Bypass/Engage – This is a preset function for footswitches. That way you can select which state your pedal will go to when you plug in the power supply.
  • True Bypass/Buffered – Buffered or True Bypass Operation means you can fit this pedal in your signal chain easily.

K-Style

On the K-style side of the pedal, Crazy Tube Circuits has added an authentic voicing to the clipping section. This is a set of hand-selected Mullard/Valvo labelled OC45 germanium transistors from the ‘60s. This adds a supernatural feel with organic compression for increased gain and sustain. This is the first Klon-type circuit to feature germanium transistors in its clipping section!

Dumble Overdrive

The amp-in-a-box side of the RAW version is 2 Dumble voiced overdrive circuits and is glassier and punchier than the standard version of this pedal. Think of singing blues rock and classic rock sounds that cut through the mix, flawlessly performing with all kinds of different guitar/pickup combinations.

Specifications

  • Controls: gain, treble (tone), volume, bypass mode and clipping/compression.
  • Wide gain range control: from transparent boost to high headroom overdrive.
  • Treble control is an active circuit to boost or cut treble.
  • Volume knob sets overall output. Huge amount of dB boost available.
  • Select between the original buffer bypass to add clarity and run long cables or true bypass.
  • Select between stock clipping (germanium diodes) or enhanced compression, gain and sustain (NOS Mullard/Valvo OC45 germanium transistors).
  • Left side: Dumble amp in a box overdrive.
  • Controls: gain, emphasis, tone, volume, amplifier voicing toggle.
  • Gain control: from clean boost to raw singing overdrive.
  • Emphasis is a pre-drive EQ to control presence and bottom end response.
  • Tone controls the amount of post overdrive high end frequencies.
  • Volume knob sets overall output. Match bypassed volume or use as a clean boost or preamp.
  • Toggle switch selects between 2 distinct overdrive circuits voiced after Steel String Singer and Overdrive Special Dumble amplifiers.
  • SSS: “clean” overdrive with natural organic compression.
  • ODS: higher gain overdrive with enhanced mid frequencies and blooming harmonic overtones.
  • Left LED changes colour to half red when ODS voicing is selected.
  • External footswitch input to select between amplifier voicings.
  • External footswitch (XT) offered as an extra accessory (not included).
  • Internal trimmers adjust EQ and volume boost of overdrive voicings.
  • Passive series effects loop to connect pedals between the two sections or use them separately as independent effects.
  • Runs internally at 18V DC for higher headroom, tube-like performance and exceptional pick attack response.
  • Top-mounted jacks.
  • Click-less True Bypass design via high-quality relay.
  • Power-up bypass/engage preset function for the footswitches.
  • Power Supply: Use only 9V DC, center negative power supply (not included).
  • Current consumption 83mA.
  • Product box dimensions: (W x L x H) : 147 x 103 x 65 mm.
  • Product box weight 521g.
  • Sparkling quartz grey die-cast enclosure with white ink in old-school type print.
  • Made in Greece

 

 

 

Ingredient Allergy Warning : Product may contain nuts.

Additional information

Weight0.5 kg

Brand

Crazy Tube Circuits

Crazy Tube Circuits is a boutique pedal manufacturer based in Athens, Greece, known for its handcrafted effects pedals designed to deliver classic and modern tones with a unique twist. Founded by Christos Ntaifotis in 2009, Crazy Tube Circuits has gained recognition for its commitment to quality, innovation, and attention to detail.

One of Crazy Tube Circuits’ standout pedals is the Time Delay, a tape echo-inspired delay pedal that offers warm, vintage-style delay tones with modern features and flexibility. The Time Delay pedal includes controls for delay time, feedback, and modulation, allowing musicians to dial in a wide range of delay effects, from subtle ambiance to lush, modulated repeats.

In addition to the Time Delay, Crazy Tube Circuits offers a variety of other effects pedals, including overdrive, distortion, fuzz, modulation, and reverb pedals. Each pedal is handcrafted using high-quality components and features unique circuit designs, ensuring exceptional sound quality and reliability.

Crazy Tube Circuits pedals are highly regarded by musicians and enthusiasts for their versatility, tone quality, and distinctive aesthetic. With their dedication to craftsmanship and innovation, Crazy Tube Circuits continues to push the boundaries of what is possible in the world of guitar effects pedals, inspiring musicians to explore new sonic territories.

Category

Crazy Tube Circuits

Crazy Tube Circuits is a boutique pedal manufacturer based in Athens, Greece, known for its handcrafted effects pedals designed to deliver classic and modern tones with a unique twist. Founded by Christos Ntaifotis in 2009, Crazy Tube Circuits has gained recognition for its commitment to quality, innovation, and attention to detail.

One of Crazy Tube Circuits’ standout pedals is the Time Delay, a tape echo-inspired delay pedal that offers warm, vintage-style delay tones with modern features and flexibility. The Time Delay pedal includes controls for delay time, feedback, and modulation, allowing musicians to dial in a wide range of delay effects, from subtle ambiance to lush, modulated repeats.

In addition to the Time Delay, Crazy Tube Circuits offers a variety of other effects pedals, including overdrive, distortion, fuzz, modulation, and reverb pedals. Each pedal is handcrafted using high-quality components and features unique circuit designs, ensuring exceptional sound quality and reliability.

Crazy Tube Circuits pedals are highly regarded by musicians and enthusiasts for their versatility, tone quality, and distinctive aesthetic. With their dedication to craftsmanship and innovation, Crazy Tube Circuits continues to push the boundaries of what is possible in the world of guitar effects pedals, inspiring musicians to explore new sonic territories.

Tags

EQ

While Ed Sheeran primarily relies on the natural sound of his acoustic guitar and vocals, he occasionally uses EQ (Equalization) to shape and enhance his tone during live performances or in the studio. EQ pedals or onboard preamps can allow him to adjust the frequency response of his guitar signal to suit the acoustics of different venues or to achieve specific tonal characteristics. Here’s how EQ might be utilized in Ed Sheeran’s setup:

1. **Tonal Shaping**: EQ can be used to adjust the balance of frequencies in the guitar signal, allowing Ed Sheeran to shape his tone to his liking. For example, he might boost the midrange frequencies to bring out the warmth and presence of his acoustic guitar, or cut certain frequencies to reduce any harshness or mud in the sound.

2. **Feedback Control**: In a live setting, EQ can help control feedback by notching out problematic frequencies that might cause the guitar signal to feed back through the amplification system. This can be particularly useful when performing in venues with challenging acoustics or high volume levels.

3. **Room Correction**: In situations where the venue’s acoustics are less than ideal, EQ can be used to compensate for any deficiencies in the sound. By adjusting the EQ settings, Ed Sheeran can tailor the guitar tone to sound more balanced and natural, regardless of the room’s acoustic properties.

4. **Matching Gear**: EQ can also be used to match the tone of Ed Sheeran’s guitar to the sound of other instruments or equipment in his setup. For example, he might adjust the EQ to complement the tonal characteristics of his vocal microphone or to blend seamlessly with backing tracks or other instruments.

Overall, while EQ may not be a central component of Ed Sheeran’s guitar effects setup, it can still play a valuable role in shaping his tone and ensuring that he achieves the desired sound in different performance environments. Whether used subtly for tonal shaping or more aggressively for feedback control, EQ allows Ed Sheeran to tailor his guitar tone to suit his musical vision and performance needs.

Guitar Pedals

Your pedal is like a signature dish for your sound — a flavour-packed creation that transforms the bland ingredients of your guitar into something unforgettable. Each one adds its own seasoning, texture, and heat, turning a simple meal into a feast of tone.

These tasty little boxes sit in a row, like plates on a buffet, letting you mix and match flavours as you play. With one tap of your foot, you can swap sweet for spicy, subtle for smoky, and serve up something completely new. From the comfort food of warm overdrive to the fiery kick of fuzz, from smooth jazz sauce to heavy-metal spice, pedals give players a full menu of options to express their taste.  And just like with food, once you’ve tried one dish, you’ll want to sample them all.

Collecting, trading, and discovering new flavours soon becomes part of the joy of being a tone-loving gourmet geek with a guitar.

Looper

A looper pedal records and plays back sections of your playing, allowing you to layer sounds and build full arrangements on your own. By capturing short or long phrases, you can create rhythm parts, harmonies, or entire backing tracks in real time. Most loopers offer basic controls for record, overdub, and playback, while advanced models include multiple tracks, tempo syncing, and memory storage for saving your loops.

Loopers are invaluable for practice, songwriting, and live performance. They help you explore ideas, refine timing, and experiment with textures — from solo acoustic performances to complex ambient soundscapes. A good looper pedal becomes an instrument in itself, letting you improvise, arrange, and perform with creativity and freedom, turning one guitar into an entire band.

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

Overdrive

Like a golden layer of melted cheese — warm, gooey, and just put it all over. It adds just the right amount of richness and grit, turning a clean signal into something smooth and savoury. Designed to mimic the natural breakup of a tube amp pushed to its sweet spot, overdrive delivers the flavour of classic rock and blues in every bite. From creamy mid-gain warmth to crisp edge-of-breakup sparkle, it’s the comfort food of guitar tone — simple, satisfying, and endlessly versatile. Whether it’s a mild crunch or a full-bodied roar, overdrive is where good taste begins.

power supply

Preamp

A preamp pedal shapes and boosts your guitar’s signal before it reaches your amp or recording interface, giving you control over tone, gain, and headroom. It acts as the first stage of amplification, adding warmth, clarity, and character while preparing your signal for the next part of the chain. Some preamps emulate the response of classic valve circuits, while others offer clean, transparent tone shaping ideal for acoustic instruments or direct recording setups.

Used on its own, a preamp pedal can serve as the foundation of your tone, providing a consistent core sound wherever you play. When combined with other effects, it enhances dynamics and helps each pedal sound more defined and natural. Whether you’re looking to push your amp harder, bring life to a dull signal, or refine your sound for the studio, a good preamp pedal adds presence, punch, and musicality to any rig.

Switcher

Switcher refers to a guitar pedal or pedalboard unit that allows multiple pedals or signal paths to be controlled from a single device. A switcher can turn several pedals on or off at once, change signal order, or recall preset combinations, helping players manage complex pedal setups cleanly and reliably, especially in live situations.

Volume

Volume pedals control the output level of a guitar signal using a foot-operated treadle. They allow smooth volume swells, dynamic control during playing, and easy muting between songs. Volume pedals can be placed at different points in the signal chain to either control overall loudness or adjust gain and drive behaviour when positioned before distortion or overdrive pedals.

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