Crazy Tube Circuits Unobtanium

"Klon" (Pedal) and "Dumble" (Amp) Combined in One Unit!
  • "Klon" Pedal Channel: authentic reproduction of the original circuit
  • "Dumble" Amp Channel: 2 overdrive circuits with Dumble voicings
  • Both channels can be used independently or in series
  • Switching via toggle switch or external footswitch
  • Passive, serial effects loop
Variants (1)
Crazy Tube Circuits Unobtanium RAW
Crazy Tube Circuits Unobtanium RAW Crazy Tube Circuits Unobtanium RAW
Crazy Tube Circuits Unobtanium RAW
  • Analog Dual Overdrive Pedal
  • Faithful Clone of Centaur Circuit with Germanium Diodes, switchable to NOS Mullard/Valvo OC45 Germanium Transistors
  • The world’s first "clone" with Germanium Transistors in the clipping section
  • Selectable Buffered or True Bypass
  • Dumble-Style Amp Simulation with 2 Different Voicings
  • Amp Voicings switchable via built-in mini toggle or optional external footswitch
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Article reduced to 03.06.2026
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Finance from 23,00 € per month
Standard Shipping
free
Delivery time 1 - 2 working days
Priority Shipping
+ 0,99
Shipping on 20.05.2026
Express Shipping
+ 5,90
Delivery on Thursday, 21.05.2026, if you order within  12 Hrs. 34 Min. 
Shipping and Delivery
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Dual Overdrive with Two Independent Sections!

Unobtanium – a rare sonic element drawn from legendary sounds. A mythical overdrive meets the tone and character of two iconic amplifiers. Crazy Tube Circuits has precisely recreated the high-headroom overdrive circuit with its magical blend of clean and distorted tones and enhanced it with additional features for greater versatility.

The amp section delivers the character of two legendary D-style amplifiers with a fully analog circuit – from tube-like, compressed, thick cleans to singing overdrive with sparkling harmonic overtones. Combine both sides for an almost endless, smooth sustain and experience pure tonal bliss. A passive, serial effects loop lets you insert your favorite pedals between the overdrive and amp sections, so you can craft your ideal setup.

Features

  • "Klon" (Pedal) and "Dumble" (Amp) combined in one unit – ultra-rare sonic elements usually "unobtainable"
  • "Klon" Pedal Channel (right side) – authentic reproduction of the original circuit
  • "Dumble" Amp Channel (left side) – 2 overdrive circuits with Dumble voicings (Steel String Singer / Overdrive Special)
  • The Klon and Dumble channels can be used independently or in series.
  • Switch between the two Dumble amp characters via toggle switch or external footswitch (available as accessory)
  • Passive, serial effects loop for inserting pedals between the two sections or for use as independent effects
  • Two legendary sonic elements combined in one unit
  • Right side: Overdrive circuit in "K-Style" with famous germanium diodes
    - Controls: Gain, Treble (Tone), Volume, Bypass mode, and Clipping / Compression
    - Wide gain range from transparent boost to high-headroom overdrive
    - Treble control: active circuit to boost or cut high frequencies
    - Volume control: manages overall output level with plenty of dB boost available
    - Switch to toggle between original buffered bypass (for more transparency and long cable runs) or true bypass
    - Switch to toggle between original clipping/compression behavior or extended gain and headroom
  • Left side: "Amp in a box" with "D-Style Overdrive"
    - Controls: Gain, Emphasis, Tone, Volume, switch for amp character
    - Gain control: from clean boost to singing overdrive
    - Emphasis control: EQ placed before overdrive to shape presence and low-frequency response
    - Tone control: adjusts intensity of high frequencies after overdrive
    - Volume control: manages overall output level to match bypass volume or for use as clean boost or preamp
    - Switch to select between two distinct overdrive circuits
    - SSS: clean and transparent overdrive with natural, organic compression
    - ODS: overdrive with more gain and emphasis on mid frequencies and harmonic overtones
    - Input for external footswitch to switch amp character (disables built-in switch)
    - Trim pots inside the enclosure to fine-tune EQ and volume boost of overdrive voicings
  • Passive, serial effects loop for inserting other pedals between the two sections or for use as independent effects
  • Operates internally at 18 V DC for more headroom and tube-like response
  • Outstanding pick attack response – almost endless, smooth sustain when using both sides together
  • Top-mounted jacks
  • Silent true bypass design with high-quality relay
  • Power supply: 9 V DC only, center negative (power supply not included)
  • Current draw: 83 mA
  • Pebble gray die-cast enclosure with black retro-style lettering
  • Made in Greece

Scope of delivery

  • 1 x Crazy Tube Circuits Unobtanium Pedal

Suitable accessories (Not included in the delivery.)

Specification

  • Product number 00113069
  • Colour Beige

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Your contact persons

The hotline is currently not manned. You can reach us again on Wednesday, 20.05.2026 at 09:30.

Wednesday 09:30 - 18:00
Thursday 09:30 - 18:00
Friday 09:30 - 18:00
Saturday 09:30 - 13:30
Monday Closed
Tuesday 09:30 - 18:00