New 10,000 Dollar Sound 13.6mm Super Dual Dynamic Coil Piezoelectric Ceramic Graphene Diaphragm Dual Cavity DIY Headphones MMCX

This speaker, is more than 10,000 headset unit 
What is a piezoelectric ceramic unit?
Moving coil unit is the alternating current through the voice coil in the role of permanent magnets under the diaphragm vibration sound, moving iron is similar, is the alternating current through the coil, under the role of permanent magnets armature vibration driven thimble, diaphragm vibration sound. They are indirectly attached to the diaphragm sound through the voice coil wire.
And piezoelectric unit is an alternating voltage driven piezoelectric element attached to the bottom metal substrate vibration sound, so from the response speed, piezoelectric unit is moving iron and moving coil can not be compared. Moving coil and moving iron transducer step is: the current in the role of the magnetic field is converted into vibration, the process of the loss of energy is more, while the piezoelectric unit is the voltage is directly driven, so the relative energy loss is very small, energy consumption is also very small.
Piezoelectric sound is enough and moving iron unit comparable, because the use of metal sheet sound, good stiffness, which is moving coil and moving iron can not do the place, so the clarity and frequency will be higher than moving coil!