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Thorpy FX Heavy Water

Heavy Water


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  • Introducing ThorpyFX Heavy Water, the ultimate double boost pedal, delivering a world of tonal possibilities
  • Beloved high headroom clean boost of The Dane on the right side
  • Left side boasts enhanced volume and gritty, dirty character with Germanium diodes
  • Combine both sides for a vast array of tonal possibilities, inspiring creativity
  • Unlock harmonics, dynamic layers, and musical magic like never before
  • A true musical moderator, transforming the front end of your valve amp
  • Reacts dynamically to your playing style, providing expressive possibilities
  • Independent controls for each side, offering versatility in tonal shaping
  • Shape low end frequencies for rich and deep sound
  • High quality components ensure reliability and low noise for superior performance
  • Meticulously hand built for precision and attention to detail
  • Hand soldered joints offer superior durability and signal flow
  • Stunning custom stainless steel enclosure and metallic blue surround
  • D2O laser etched graphic symbolises exceptional and rare qualities
  • LED power indicators for each side offer clear visual feedback
  • True bypass switching eliminates any unwanted coloration or noise
  • Space saving top mounted jacks and DC input optimise pedalboard real estate
  • Enjoy peace of mind with a comprehensive two year warranty


Introducing the ThorpyFX Heavy Water, the ultimate double boost boost pedal that fulfills customer requests for a standalone Boost side of the renowned The Dane pedal whilst taking it a step further in true ThorpyFX fashion. Heavy Water offers two powerful sides in one compact enclosure, delivering a world of tonal possibilities to elevate your playing.

The name Heavy Water perfectly embodies the pedal's essence. Just like D2O, the chemical name for Heavy Water, this pedal combines powerful elements to create something rare and exceptional. With two sides, each packed with unique features, it's as precious as the scarce Heavy Water used as a moderator in nuclear reactors. Just as Heavy Water is transparent, the ThorpyFX Heavy Water maintains clarity while delivering a distinctive edge to your tone.

On the right side, experience the beloved high headroom super clean boost from the ThorpyFX The Dane pedal. With the right hand side BOOST control, dial in the ideal amount of high headroom clean boost, elevating your signal without sacrificing clarity.

On the left, embrace the boost with enhanced volume and a grittier, dirtier character, thanks to the inclusion of Germanium diodes. The left hand side BOOST control grants you massive control to add a gritty, Germanium driven clean boost to your signal, providing a distinctive edge to your tone.

The beauty of the ThorpyFX Heavy Water lies in its versatility. Both sides can be used independently, offering a wide range of tones from subtle to heavy. Shape the low end to your liking with the left and right hand side LOWS controls, adding richness and depth to your sound.

But that's not all, when you combine both sides, the ThorpyFX Heavy Water truly shines, delivering a vast array of tonal possibilities that can impressively transform the front end of a valve amp.

With a simple stomp on the LEFT FOOTSWITCH, you activate the Germanium voiced boost side, unlocking a world of creative options at your disposal.

Heavy Water by ThorpyFX is a musician's dream, designed to inspire your playing and elevate your sound. Experience harmonics, dynamic layers, and a realm of musical magic like never before. Whether you prefer subtle nuances, heavy saturation, or anything in between, the ThorpyFX Heavy Water exceeds expectations.

To ensure reliability, low noise, and tonal supremacy, ThorpyFX incorporated extremely high quality components. 1% metafilm resistors provide precision and accurate control over your sound. WIMA and Panasonic capacitors, where possible, deliver exceptional clarity and responsiveness, making every note shine.

The Burr Brown op amp adds an extra touch of excellence, contributing to the pedal's incredible tonal characteristics, ensuring your music sounds its best. Robust through hole plated PCB's further enhance the pedal's durability, making it a reliable companion for your musical journey.

Upgrade your pedalboard and explore new creative horizons with the ThorpyFX Heavy Water dual boost pedal. Experience the rarity and excellence of Heavy Water, a true musical moderator that elevates your sound to new heights. Order yours today and let the music speak for itself!


  • LHS BOOST: Shape your sound with massive control, adding gritty Germanium driven clean boost. Use it solo or combine with RHS BOOST for harmonics and layered overdrive
  • LHS LOWS: Take charge of low end frequencies, fattening up your tone. Perfect for enhancing your Strat bridge pickup
  • RHS BOOST: Dial in high headroom clean boost, standalone or stacked with Germanium boost for complex harmonics and overdrive
  • RHS LOWS: Fine tune low end tones, adding depth to your sound. Ideal for boosting your Strat bridge pickup
  • LEFT FOOTSWITCH: Activate the Germanium voiced boost side at your fingertips
  • RIGHT FOOTSWITCH: Engage "The Dane" style boost side instantly for a tonal journey like no other

Components and Technical Specifications

  • High quality components ensure reliability, low noise, and tonal supremacy
  • 1% metafilm resistors provide precision and accurate control over your sound
  • WIMA and Panasonic capacitors deliver exceptional clarity and responsiveness
  • Burr Brown op amp contributes to incredible tonal characteristics
  • Robust through hole plated PCB's enhance the pedal's durability
  • Powered by a 9V DC input for easy integration into your pedalboard setup
  • Battery operation is not supported
  • Current Consumption meter readings (mA) by Truetone:
    • 7 mA bypass
    • 9 mA maximum engaged

Enclosure Dimensions

  • Depth: 125 mm / 4.9 in
  • Width: 66 mm / 2.6 in
  • Height: 55 mm to 35 mm / 2.1 in to 1.4 in


  • 547 g
  • 1.21 lbs

Official UK Dealers

FX Pedal Planet Limited and FX Pedal Planet Online Store proudly serve as official UK dealers for ThorpyFX effects pedals. If we do not have the specific ThorpyFX pedal you are looking for, please reach out to us via the contacts page, and will order it on our next stock order for you at the best price and customer service.

Buy Today and Pay Over Time

To give our customers flexibility and a pleasurable shopping experience, FX Pedal Planet Online Store accepts Klarna, Afterpay, Clearpay and Google Pay.

Klarna is a smooth and safe way to get what you want today, and pay over time. Afterpay allows customers to pay in four interest free instalments, budget your spending and earn rewards when you shop.

UK Deliveries

For our UK customers, we provide FREE 24 hour DHL tracked and signed delivery, ensuring your order arrives swiftly and securely.

International Deliveries

International deliveries are dispatched with DHL, ensuring fast shipping and efficient processing through customs.

For more information on deliveries and charges, please refer to our Deliveries and Charges.

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