A New Benchmark of Entry-level HiFi Earphone A new generation of large-size brylium-plated dome composite diaphragm. high-efficiency internal magnetic driver structure with brass intemnal acoustic cavity. metal stainless steel shell made by MIM powder metllurgy process. A New Generation of Large-size Berllium-plated Dome Composite Diaphragm [LAN] can be the benchmark sound quality, owning to the newly designed composite diaphragm with a large-size beryllium-plated dome and a flexible suspension. The large-size spherical dome coated with beryllium owns the low split vibration which covers the higher frequency range, combines with the more linear long-stroke strain of the flexible suspension, to constitute the physical foundation of low nonlinear distortion and wide frequency band. MIM Powder Metallurgy Stainless Steel Shell The compact shell of [LAN] adopts MIM powder metallurgy process, the solid stainless steel housing is manufactured by high-temperature sintering through