Home Businesses Electrofusion Truextent Beryllium Info Welcome to the Truextent® Acoustic Beryllium Information Page Whether you are a manufacturer or end-user, an engineer or audiophile, we have a variety of documents and resources you will find to be instructive and interesting. • Technical Information • Direct-Replacement Compression Driver Diaphragm Assemblies • OEM Dome Tooling Library (standard dome geometries available without tooling costs) • Regulations Related to Acoustic Beryllium (RoHS, REACH, WEEE etc.) • Health & Safety Information • Interactive Guide To Working Safely with Beryllium (for manufacturers) • General Information Websites (Includes Resources for Teachers) Technical Information A variety of technical information on beryllium and other common acoustic materials White Paper discussing beryllium, aluminum and titanium in large format compression drivers. Matrix presenting physical and mechanical properties of various acoustic materials including beryllium, AlBeMet® and magnesium. Tech Brief comparing the performance of the Truextent BeX4016 beryllium diaphragm assembly and the Radian 1245-16 aluminum diaphragm assembly. Tech Brief discussing the use of tuning forks made from beryllium, aluminum and titanium to demonstrate the acoustic performance of each material. Compression Driver Diaphragm Assemblies Complete assemblies available through worldwide distribution BeX4008/4016 is a ø4" voice coil compression driver diaphragm assembly designed to fit a variety of JBL and Radian compression drivers. BeX3008/3016 is a ø3" voice coil compression driver diaphragm assembly designed to fit a variety of B&C compression drivers. (Not currently shipping in production quantities) BeX40T08/40T16 is a ø4" voice coil compression driver diaphragm assembly designed to fit the TAD 4001, 4002, 4003 compression drivers. (Not currently shipping in production quantities) OEM Dome Tooling Library We have an existing library of tooling for fabricating popular small dome geometries that allow you to order parts without tooling costs. Mechanical drawing showing geometries available for small domes without surround. Mechanical drawing showing geometries available for small domes with metallic surround. Regulations Related to Acoustic Beryllium Note that Truextent beryllium for speaker domes is classified by the US Government under EAR99 and so does not require an export license. FAQ209 REACH regulations in the EU and EEA do not impact the use of Truextent Genuine beryllium in acoustic applications. FAQ211 Truextent Genuine beryllium is not restricted by RoHS, and other regulations, nor JIG developed by the CEA, DIGITALEUROPE and the JGPSSI. Health & Safety Information Material Safety Data Sheet (MSDS) for beryllium. FAQ201 Information regarding beryllium and cancer, including studies conducted as recently as 2009. FAQ207 Information regarding skin contact with beryllium. FAQ208 Information regarding beryllium and Chronic Beryllium Disease (CBD). Interactive Guide To Working Safely with Beryllium (for manufacturers) Truextent Genuine Beryllium is delivered as turn-key assemblies ready to install or as prefabricated components, which eliminates or greatly reduces the safety precautions required. This interactive Website provides employers and employees with guidance to working safely with beryllium and beryllium-containing materials. A CDROM version can also be requested at the Website. General Information Websites Explore the history and uses of beryllium in a variety of applications. Includes resources for teachers preparing lessons on metals in general and beryllium in particular. The Beryllium Science and Technology Association (BeST) website. Based in Brussels, BeST is a non-profit organization representing the suppliers of beryllium in the EU market. Includes a large library of articles and studies relating to Health and Safety.