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Coda Bow Carbon Fibre Cello Bow - Joule 4/4

Cello Bow

The Bow for Electric Instruments & Extended Range Instrumentalists

When you bring high-octane energy to every performance, you need a carbon fiber bow that brings just as much. Choose the CodaBow Joule carbon fiber bow for violin, viola, or cello for an empowering performance. Delivering a brilliant, strong tone, the Joule is ideal for electric instrument musicians and extended instrument musicians.

  • Balance: Center-Tip
  • Weight: Medium-Heavy
  • Action: Moderate
  • Stiffness: Medium-Stiff

The bow’s design intends to generate more power and energy than any other conventional bow of the same weight.

What Makes the Joule Bow So Powerful?

Heavy bows give a fuller, bigger sound by maintaining a better grip on your strings. While the Joule is heavier than the average violin, viola, or cello bow, the bow’s weight isn’t the only attribute that contributes to its power across extended ranges.

Bow Length, Shaft Only (cm)

Bow Weight (grams)

Violin: 73

Viola: 73

Cello: 69.5

Violin: 61.5

Viola: 70.5

Cello: 81


Innovative Shaft Design

Unattainable with traditional materials, the innovative design of the Joule's shaft adds more mass to critical performance areas while preserving a balanced weight and comfortable flexibility. This unique design allows the bow to grab the string and speak effortlessly, whether you're playing deep, whole tones, or percussive chops.

Within the shaft resides a composite acoustic core made of durable carbon fiber. The resulting architecture gives this design impressive power that belies its quickness and facility.

Optimized Frog and Hair Length 

The Joule boasts a powerful resonance on the bottom strings and strong projection across all ranges. The shorter frog and longer hair allow for exploration in more aggressive and demanding styles and set-ups. The Turbo Xebony® Frog design offloads weight under the hand to provide more space for bowing techniques at the frog.

Layered Diamond Weave

Multiple layers of our pioneering Diamond Weave technology give the Joule high torsional strength while preserving desired longitudinal flexibility. This enhancement allows you to command the string without collapsing the bow to retain the nuance of expression. 

Joule reviewers back us up! One Portuguese violin player with more than 50 years of experience reported that the Joule gave his playing "new expression and performance capabilities" compared to the difference in balance from a classical bow. 

Ready to Rock

Musicians of electric instruments and 5-6 string instruments appreciate the Joule's capabilities and delivery. Its features align for best-in-class bluegrass, old-time, and fast jam performances. Joule reviewers report pulling "a great tone" out of their acoustic fiddles. Others rejoice that they're finally able to nail a specific tone. One CodaBow violinist shares, "The violin Joule has just the right weight for the upper and lower strings on my 5-string, and I don't have to work as hard to get the C-string tone I've been looking for."

Durable Enough for a Lifetime

All high-wear components (including tip plate, tip wedge, and button bearings) are precision-made using industry-leading composite materials to ensure a lifetime of worry-free play.

Sustainably Crafted 

The CodaBow Joule carbon fiber bow holds the GlobalBow® designation. This designation ensures that the bow contains no endangered, monitored, or regulated species (wildlife or fauna) and can pass worry-free through international Customs. Practice in Los Angeles, perform in Mexico City and play wherever you like when you have a Joule violin, viola, or cello bow.


Shaft (Outer)

Graphite Fiber Weave

Acoustic Core (Inner)

Kevlar Fiber

Frog Body

Xebony® (Engineered Composite)

Frog Slide

Carbon Fiber

Frog Fittings 

Nickel Silver

Frog Button

Nickel Silver and Thermoplastic


Cow Leather

Tip Plate

Fiber Reinforced Thermoplastic


Nickel Silver


Ethically-Sourced Mongolian Horse Hair


Fiber Reinforced Thermoplastic 

    Coda Bow Carbon Fibre Cello Bow - Joule 4/4

    Shipping information

    Bows for Strings ships all products Australia-wide using Australia Post and our network of couriers for larger items.

    Getting your new instrument or musical accessories to you as quickly and as safely as possible is our priority.

    Standard parcels ship via Australia Post, and we offer free shipping for orders over $75 (standard cost is $10). Orders are fulfilled within 3 business days. Standard delivery times are 3-5 days. All instruments are professionally set-up by our workshop, and so fulfilment times for instrument orders are longer (please allow up to 5 weeks currently). Read more about our professional set-up here.

    Want to get your order as fast as possible? We also offer an express post option which you can select at checkout. Items are sent via Australia Post Express and typically arrive in 1-2 days after your order has been fulfilled.

    Larger items such as cellos and large cases require extra care and incur a separate handling and delivery fee of $75. Double Basses sized 1/4 also incur a separate fee of $125, and 1/2 and 3/4 Double Basses a fee of $225. These items are not applicable for free shipping. When ordering larger items to remote locations, or when ordering multiple larger items, there may be an additional delivery cost involved.

    If you would like to discuss the postage of your item, please don’t hesitate to contact us at

    Click and collect:

    Bows for Strings offers the option to 'click and collect' your order at our Glen Waverley showroom. Click and collect items are typically ready within 1 business day (instruments require professional set-up and are typically ready within 5 weeks currently due to back to school demand). If choosing this option you will receive an email when your item is ready to pick-up.

    New Zealand Shipping:

    We are pleased to offer international shipping to New Zealand! Shipping is currently available for violins, violas, strings and accessories - stay tuned for cellos and double basses. Shipping costs are based on weight and are calculated at checkout - smaller items such as strings or books cost $20, larger items such as a violin or viola cost $35. If you would like a heavier item (cello, double bass, etc) shipped to New Zealand, please contact us for a quote. Delivery typically takes 7-10 days, and fulfilment times are the same as listed above.

    Customer Reviews

    Hear what our customers have to say about this product.

    Coda Bow Carbon Fibre Cello Bow - Joule 4/4
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