Home Products Beryllium Products Truextent BeX Diaphragm Assemblies TRUEXTENT® BEX™ DIAPHRAGM ASSEMBLIES FOR LOUDSPEAKERS Materion’s Truextent® BeX4008/4016 precision replacement diaphragms combine premiere materials with precision manufacturing to achieve the ultimate results in loudspeakers. Our high efficiency BeX diaphragms deliver exceptional power handling, high sensitivity and significantly improved clarity of sound with extended bandwidth over that of factory originals or other aftermarket diaphragms. BeX diaphragm assemblies are engineered to fit a variety of large format compression drivers. BeX diaphragm assemblies feature genuine acoustic beryllium domes that reduce mass and ensure unmatched rigidity. By rolling beryllium into a thin foil and then hot forming our domes and cones, we offer a durable product with consistent thickness. Our manufacturing techniques result in speakers and headphones with extended high frequency range, unparalleled sound dampening and distortion-free sound. Read our BeX compression driver diaphragm assemblies data sheet. BEX™ DIAPHRAGM ASSEMBLIES ARE BUILT FOR PERFORMANCE All Truextent BeX diaphragms are designed with: Aluminum wire edgewound voice coils Hot-formed Truextent genuine beryllium domes PEEK polymer surrounds Our BeX diaphragm assemblies are available in 8Ω and 16Ω impedances. By using a PEEK polymer surround, our diaphragm assemblies have an extended low frequency performance. They are also built with aluminum edgewound voice coils with beryllium-copper lead outs. The BeX4000 series fits a variety of JBL and Radian compression drivers. Review our technical analysis showing the advantages of BeX in a Radian compression driver. SPEAKERS WITH EXTENDED FREQUENCY RESPONSE & LESS DISTROTION The next-generation BeX4000 series delivers more sensitivity and better overall frequency response than traditional metal speaker dome materials like titanium and aluminum. The BeX assemblies can upgrade existing speakers by replicating higher highs, lower lows and greater sensitivity, achieving the ultimate in sound clarity. Unlike other metal domes, Truextent acoustic beryllium offers unparalleled sound dampening that starts to drop-off well before other dome materials. Due to beryllium's unique physical properties of stiffness and damping, the BeX4000 series eliminates ringing and distortion. Learn more about the Advantages of Beryllium Compression Drivers: Download Driver Whitepaper BEX™ – FOR THE NEXT LEVEL IN SOUND There is no other material like beryllium for loudspeakers and headphones. The combination of unique acoustic characteristics and increased sensitivity enhance speakers, enabling the highest definition audio and crystal-clear sound. For more information about Materion’s Truextent BeX Diaphragm or our Truextent acoustic beryllium, talk with our engineers.