News

The selection of diaphragm material plays a critical role in determining the acoustic quality and performance of microspeakers and other audio devices. At Transound, we conducted a diaphragm results to analyze the response characteristics of various materials and coatings. This study is essential for optimizing audio fidelity, durability, and efficiency in acoustic components.


The following observations were made from the results:

19µm PEN:
This material demonstrated a balanced response across the tested frequencies, with stable energy distribution. However, it may not achieve the same high-frequency response clarity as coated materials.

19µm PET:
PET showed strong frequency response but had slightly more variability in energy dispersion compared to PEN. This suggests that while PET is effective, it might benefit from coating to reduce distortion and improve durability.

19µm Coated with Graphene:
The graphene-coated diaphragm showed enhanced frequency stability and minimal energy dispersion. The strength and lightness of graphene improved the diaphragm’s responsiveness, particularly in the higher frequency range, indicating potential for use in high-fidelity applications.

19µm PET Coated with Beryllium:
This combination exhibited the best performance, with highly consistent energy dispersion and superior frequency response. The rigidity provided by beryllium allows for minimal distortion, making it a preferred choice for premium acoustic products aiming for precise sound reproduction.

Conclusion
This diaphragm testing results illustrates how material selection and coatings significantly impact the performance of acoustic components. Graphene and beryllium coatings, in particular, offer distinct benefits by enhancing durability, frequency response, and energy stability. By carefully selecting and testing these materials, Transound aims to innovate and provide high-quality acoustic solutions that meet the demands of modern audio technology.