Pricing and availability
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Price
Average Price: $266
High-end/Boutique
$50
$176+
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Budget
Standard
High-end
Price History
Based on price data from 1 merchant for "Crazy Tube Circuits Unobtanium". Prices shown reflect NEW condition. Tracking began Apr 19, 2026.
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Description
The Crazy Tube Circuits Unobtanium is a powerhouse pedal that seamlessly blends legendary overdrive with amp-like tonal bliss, making it a versatile tool for any guitarist seeking rich, dynamic soundscapes. This pedal combines two iconic sounds—the K-style overdrive circuit with germanium diodes on the right and the D-style amp-in-a-box on the left—offering a comprehensive range of tones from smooth sustain to crunchy overdrive.
With its ability to operate internally at 18V DC, the Unobtanium delivers more headroom and a tube-like response, ensuring your guitar tone remains vibrant and articulate. The pedal's flexibility is further enhanced by its passive serial effects loop, allowing you to integrate additional pedals seamlessly. True bypass design with high-quality relays means your signal stays pristine when the pedal is disengaged.
On the right side, explore various tonal textures with controls for Gain, Volume, and Treble, along with switches for Buffer/True and Stock/Mod, which can shift from original clipping to extended headroom. The left side offers a more nuanced approach with Gain, Volume, Tone, and Emphasis controls, plus SSS and ODS switches to toggle between clean, transparent compression or elevated mid frequencies with harmonic overtones.
Key Features:
- Dual overdrive/pre-amp configuration
- Independent K-style and D-style circuits
- Internal 18V DC operation for enhanced headroom
- True bypass with high-quality relays
- Passive serial effects loop
- Right side controls: Gain, Volume, Treble; switches for Buffer/True and Stock/Mod
- Left side controls: Gain, Volume, Tone, Emphasis; switches for SSS and ODS
- Input, output, and FX loop connections
- Connection for an external footswitch (not included)
Product specs
| Available since | December 2022 |
| Overdrive | Yes |
| Distortion | No |
| Fuzz | No |
| Metal | No |
| Effect Types | Preamp |
FAQs
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What type of overdrive tones can I expect from the Crazy Tube Circuits Unobtanium?
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The Crazy Tube Circuits Unobtanium delivers a variety of classic overdrive tones, emulating the sound of sought-after vintage amplifiers. It provides a rich, dynamic response suitable for blues, rock, and classic rock genres.
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Is the Crazy Tube Circuits Unobtanium suitable for use with both single-coil and humbucker pickups?
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Yes, the Unobtanium is designed to work well with both single-coil and humbucker pickups, offering a versatile overdrive that complements different guitar types and pickup configurations.
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Does the Crazy Tube Circuits Unobtanium require a specific power supply?
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The Unobtanium requires a standard 9V DC power supply with a center-negative polarity, which is commonly used with most guitar pedals.
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Can the Crazy Tube Circuits Unobtanium be used as a preamp?
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Yes, the Unobtanium includes preamp capabilities, allowing it to be used as a preamp to shape your guitar tone before it reaches the amplifier.
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How does the Crazy Tube Circuits Unobtanium differ from typical distortion pedals?
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Unlike typical distortion pedals, the Unobtanium focuses on delivering authentic overdrive tones without the high-gain distortion, making it ideal for players seeking a natural, amp-like overdrive sound.
Videos
Shawn Tubbs
Crazy Tube Circuits UNOBTANIUM Dual Overdrive | Klon and Dumble in a Box!
Reviews
PROS
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Unique ability to shape amp tone, enhancing clarity and fullness across different guitars
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Sensitive knob adjustments offer precise control over sound
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Features both D-style and Klon circuits for versatile tone shaping
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Can be used as two separate pedals when integrated with a loop switcher
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Contains an internal trim pot for an additional 6db boost on the ODS mode
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Offers rich, amp-like tones with cab simulator capabilities
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True/buffered bypass option on the Klon side enhances signal integrity
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Effect loop allows for effective gain stacking
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Exceptional sound quality, surpassing cheaper alternatives
CONS
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Pricier than some alternatives, potentially a significant investment for some users
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Crazy Tube Circuits Unobtanium.
Features and functionality
Comparisons
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Owners find the Unobtanium's Klon circuit indistinguishable from J Rockett Archer Ikon and Ceriatone Centura, using identical germanium diodes.
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The Unobtanium's SSS mode is favored over the Vertex Steel String Singer for its authentic tone without adding unwanted grit.
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The Unobtanium replaced JHS Notaklon and J Rockett Hot Rubber Monkey pedals in some users' setups, indicating its versatility across different drive preferences.
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Some owners compare the Unobtanium's SSS side to the Gladio SC, noting differences in tonal warmth and clarity.
Source
Use cases and applications
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The pedal is praised for low gain, clear sounds with sustained feedback, ideal for blues-rock styles without overpowering the signal.
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The pedal is praised for its SSS mode's swampy bass breakup when the internal bass pot is maxed, enhancing blues and rock styles.
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Owners appreciate the pedal's ability to emulate tones similar to John Mayer's live performances, highlighting its versatility in capturing popular artist sounds.
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User experience
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The Unobtanium works well across different amps, including valve and digital models, showcasing its versatility.
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Owners share that the Unobtanium excels in providing "edge of breakup" and "clean-dirty" tones, ideal for genres like indie, dream pop, and lofi.
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One user found the OC45 germanium transistor underwhelming for their preferred genres, suggesting it may not suit all musical styles.
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Critic Reviews
5.0 out of 5
Based on 1 Review and 1 Rating
Artist usage
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Used With
Based on how musicians on Equipboard use Crazy Tube Circuits Unobtanium, it is most commonly used with the following gear.
Community setups
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Crazy Tube Circuits Unobtanium is another Dumble Style Overdrive.
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