Diamond Coatings for Speakers, IEMs, and Headphones

This article explores a fascinating topic that is recurrent in the loudspeaker industry: diamond coatings. As speaker designers look to refine their products' sound quality through diaphragm treatments, there are benefits to be explored from diamond coatings, or more specifically diamond-like-coatings (DLC), which is a process that matured over the last half-century. The industry has now reached a stage where this technology becomes available and viable, particularly for microspeakers.

This article provides a valuable overview of the latest Thin-Film Coatings and Treatments solutions that are available in the market. Highlights include a new a state-of-the-art REACH-compliant CVD coating process from Oerlikon Surface Solutions, applicable on multiple substrates, such as aluminum, titanium, PEEK, and composites, and Nanovate, a metallurgical nano-coating technology based on electrodeposited nano crystalline structural metal from Integra. The report also highlights Antiviral/Antimicrobial Coatings from Integran, Kastus Technologies, and Nanowatt, among others. This article was originally published in Voice Coil, July 2022.

The July 2022 issue of Voice Coil offers important resources for the industry with a focus on Adhesives, Coatings and Treatments. Mike Klasco writes about New Thin-Film Technologies for Coatings and Treatments. James Croft returns with a fresh review of a Mayht patent. And Vance Dickason characterizes the recent 38WE/8582T00 15” Ellipticor woofer from Scan-Speak, and explores the historical relevance of the SEAS W15CH001 5.25" Excel Midwoofer and its Hexadym Motor design.