HIFIMAN HE-R10D Dynamic Topology Driver Close-Back Over-Ear Headphones for Home, Studio and Recording, Wired Version Oil Mask walkie-talkie

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HIFIMAN HE-R10D Dynamic Topology Driver Close-Back Over-Ear Headphones for Home, Studio and Recording, Wired Version Oil Mask walkie-talkieTopology Diaphragm: diaphragm featuring a special Nano particle coating applied to its surface. The idea behind the new Topology Diaphragm was inspired by Dr Fang Bian's Ph. D. thesis that "different Nano materials have differing structures and each of those materials have its own properties". Therefore, by carefully controlling the diaphragm surface structure you can yield different results in acoustic performance to a degree previously unobtainable.