Hifiman HE-R10D Dynamic Driver Headphone

Topology DiaphragmThe Topology diaphragm is being touted as being a unique design and a huge improvement on traditional dynamic drivers. Particularly, in the way it controls distortion and how much additional tweaking Hifiman can exact on the sound signature before it goes to market.  
In part, this process pulls from Fang’s experience working on his recent planar design materials as well as his core academic research into nanotechnology.
Hifiman has created what they call a ‘Topology’ diaphragm, first for IEMs and now on a much larger scale for the HE-R10D with a nanoparticle coating applied to its surface.
Frequency Response : 15Hz-35kHz
Impedance : 60Ω
Sensitivity : 103dB
Weight : 337g