Crazy Tube Circuits Unobtanium Raw
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Crazy Tube Circuits
Unobtanium Raw
Product Info
Article Number:
593247
Brand:
Crazy Tube Circuits
Model:
Unobtanium Raw
Category:
Distortion Pedals
Price:
$336.60
* Prices may vary. Check retailer for current pricing and availability.
The Unobtanium Raw is a seriously impressive overdrive, nailing that elusive Dumble vibe. It's a great choice for players chasing a high-end amp tone in a pedal – especially those who like a slightly darker, more saturated overdrive. If you're after a Klon-adjacent sound with a twist and want to simulate a boutique amp, this is a fantastic option.
Product Description
- Crazy Tube Circuits Unobtanium Raw
- Effect Pedal for Guitar and Bass
- Klon-style overdrive and analogue amp simulation
- Dumble-style amp simulation
- Variation of the well-known Unobtanium pedal
- OC45 transistors in the overdrive circuit for more gain
- sustain and a special sound (NOS Mullard/Valvo OC45 Germanium transistors)
- Switchable between ‘Stock’ and OC45
- Pedal and amplifier sections can be used together in series or individually
- Passive series effects loop to connect other pedals between the two sections or use them separately as independent effects
- Works internally with 18V DC for more headroom and tube-like behaviour
- True bypass design with high-quality relays
- Optional XT footswitch for switching the amp voicing (not included)
- Right-sided controls: Gain
- Volume
- Treble
- Left-sided controls: Gain
- Volume
- Tone
- Emphasis
- Right-sided switch: Buffer/True
- Stock/OC45
- Left-sided switch: SSS
- LED per side: Effect On
- Footswitch: Effect bypass per pedal side
- Input: 6.3 mm mono jack
- Send
- Return Out
- Connection for optional XT footswitch: 6.3 mm mono jack
- Current consumption: 83 mA
- Power supply via 9 V DC mains adapter
- Dimensions (W x D x H): 147 x 103 x 65 mm)
- Weight: 521 g
- Made in Greece
PROS
- • OC45 transistors deliver a uniquely saturated, harmonically rich overdrive.
- • Dumble-style amp simulation convincingly emulates a high-end tube amp's warmth.
- • Passive series loop offers flexible signal routing and tonal shaping options.
- • 18V operation expands headroom, contributing to a more dynamic and responsive feel.
CONS
- • The OC45 voicing can be a bit too colored for some players’ tastes.
- • Relay bypass adds a slight amount of noise compared to a simple true bypass.
- • Premium-priced, may be a barrier for players on a tighter budget.
Product Video
Key Features
Distortion Type
Klon-style overdrive with Dumble-style amp simulation
Controls
Gain, Volume, Treble, Bass, Amp Voicing (Stock/OC45 - optional footswitch)
Bypass Type
True Bypass with Relays
Power Supply
18V DC (adapter not included)
Connections
Input, Output, Send, Return, DC Power Jack
Dimensions
Approximately 4.75" x 3.5" x 1.75" (120.6mm x 88.9mm x 44.5mm)
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Frequently Asked Questions
The OC45 transistors introduce more even-order harmonics, resulting in a thicker, smoother, and slightly darker tone compared to a typical Klon circuit.
It's an analog simulation – Crazy Tube Circuits uses carefully selected components to mimic the response and saturation of a Dumble-style amplifier, not digital algorithms.
It shines with darker, higher-gain amps, but also adds a welcome warmth and clarity to cleaner platforms – really versatile, but excels when paired with something already leaning towards a mid-focused sound.
