Our mission is to engineer loudspeaker diaphragms that sound like you want them to sound.
With TPCD, the diaphragms are engineered to behave like you want them to behave and sound like you want them to sound. Much like the tone of a guitar string can be tuned by adjusting the tension, the TPCD can be tuned by adjusting the combination of fiber angles – the TPCD can be engineered for a specific and desired behavior and sound signature – the TPCD diaphragm can be engineered to sound like you want it to sound.
The possibility to engineer the diaphragms’ behavior in combination with high stiffness and ultralight weight enables:
– Clarity, smoothness and sensitivity
– Controlled and optimized break up behavior
– Pistonic motion at a wide frequency range with controlled and smooth break up behavior
– Geometries not possible with conventional diaphragm solutions
– Most importantly: great sounding audio products that sound like you want them to sound
How can space and formula one technology be used to improve the sound quality of loudspeakers?
Thin-ply carbon is a novel type of material that is used in applications that require the absolute highest performance in combination with ultralight weight. Examples include cryogenic tanks for space applications, next generation of commercial aircraft and formula one cars. By optimizing the way the thin-ply carbon layers are organized, mechanical performance can be maximized, weight minimized, and, the part can be engineered to behave in certain desired ways in different areas and different directions.
We are using thin-ply carbon technology to take the performance of loudspeaker diaphragms to a whole new level, enabling great sounding audio products that sound like you want them to sound.
Technology in Thin-Ply Carbon Diaphragms – TPCD
Engineered to sound like you want them to sound
The ideal speaker cone should be stiff, light and well damped. In reality, that is very difficult to combine, typically forcing cone solutions to either prioritize pistonic motion but accepting uncontrolled break up (hard cones); or prioritizing damping but accepting diaphragm break up in the audible range (soft cones).
TPCD can be engineered to behave like you want them to behave and to sound like you want them to sound. By varying the way the thin-ply carbon layers are arranged, the properties and behavior of the diaphragm in different areas, directions and frequencies can be varied and optimized. Much like the tone of a guitar string can be tuned by adjusting the tension, the TPCD can be tuned by adjusting the combination of fiber angles. That means that the TPCD can be engineered for a specific and desired behavior and sound signature – the TPCD diaphragm can be engineered to sound like you want it to sound.
Distributed and Optimized Break up
A speaker cone made from isotropic materials such as metal, paper or plastic, have the same properties in all directions, and will therefore experience symmetric break up modes around the cone. By breaking the symmetry in the diaphragm, the symmetric break up modes are eliminated. These are replaced by small and local, distributed break up modes. The big peaks and dips in the frequency response are eliminated and replaced with small peaks and dips resulting in a smooth frequency response and a natural sound.
Not only is the symmetry broken, by varying the ways the thin-ply carbon layers are arranged, the break up modes can be varied and optimized. The diaphragm can be engineered to behave in certain ways and sound in certain ways. This is exemplified in below diaphragm. To the left are the symmetric break up modes of a metal diaphragm (could be paper or plastic as well). The three images on the right shows how the break up behavior of a diaphragm can be varied by varying the combination of fiber angles. TPCD A, B and C are identical in all aspects – thickness, weight, density etc – but have different combinations of fiber angles.
The vast flexibility of the TPCD technology enables it to be used for a number of cone and dome types, for instance tweeters, midranges, fullranges, woofers, compression drivers, headphones and micro speakers.
