Engineered Speaker Cones and Diaphragms

Everything we do at Composite Sound is about enabling you to make it sound like you want it to sound. We use state of the art material science, advanced simulation tools and a unique engineering approach to create speaker cones and diaphragms.


Like you want it to sound

Composite Sound engineers Thin-ply Carbon Diaphragms (TPCD) to prevent undesired resonances from ever occurring. Where traditional speaker diaphragms try to limit the negative effects of undesired resonances, our process optimizes the thickness, stiffness and damping in different parts of the diaphragm, thereby controlling modal behavior. Our fabrication enables us to maximize stiffness and minimize weight without compromising controlled behavior.

Space and Formula 1 material technology improves sound

Composite Sound is a spin-off from Oxeon. Oxeon’s world leading TeXtreme® technology is used in extremely demanding applications that require ultralight weight, high stiffness and long endurance, such as Formula 1 cars and NASA’s Mars drone. Composite Sound uses the same TeXtreme® technology to engineer speaker cones and diaphragms at a whole new level. Composite Sound is an independent company within the Oxeon group focusing solely on acoustic applications and the loudspeaker industry.  

Simulation driven engineering

To optimize performance, properties and behavior to match specific client requirements we work extensively with simulations. We use ANSYS to simulate and engineer the optimum diaphragm constructions, and COMSOL Multiphysics® to optimize the performance acoustically.


Application examples and use cases

Use case

Ex Machina Soundworks midrange cone

"The demands on this 130 mm midrange cone deployed in our flagship 180 mm coaxial drive unit are daunting. "

Use case

Custom Install Tweeter

"Our client desired a specific geometry to meet certain design criteria for a tweeter to be used in a custom install application."

Use case

Compression Driver

"It was a total Eureka moment when we saw the stiffness to weight ratios, speed of sound and acoustical figure of merit those values [TPCD material properties] equate to."

Evaluate our technology

To make it easy and transparent to evaluate our technology and the potential of our cones and diaphragms, we have developed a three-step method.

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