Sony MDR-Z1000 - Manual (Page 2)

1. Introduction
This device is designed to fulfill the high demands of functionality and performance required in a real
professional production environment. In order to thoroughly reproduce accurate sound and to provide
the acoustic isolation necessary for professional studio usage and actualize these features at a high level of
balance, we have integrated a full range of technology developed by Sony over a long span of specialization
as well as newly-developed technology. This pamphlet explains these technological components.
2. Producing accurate sound
2-1 Liquid Crystal Polymer Film diaphragm
For the driver unit diaphragm material, lightness and consideration
to the seemingly contradictory features of highly rigidity vs. high
internal loss is essential. Though rigidity is key in accurately
converting input signals over a wide bandwidth into sound, a
high level of internal loss is also required to suppress unnecessary
vibration of the diaphragm itself.
Liquid Crystal Polymer has already been identified for some time
as a material that can provide a balanced combination of these
two characteristics in high order. However, previously it could not
be used to create diaphragms for headphones due to the inability
of compositions and manufacturing methods to obtain sufficient
heat resistance and the inability to achieve the thinness required for usage in headphones, caused by a low
degree of film elongation and the difficulty of formation.
To solve this problem, a highly stretchable Liquid Crystal Polymer was successfully developed for use as a
casting film using polymer varnish. This made it possible to enable both rigidity and a high level of internal
loss over a wide bandwidth, while also providing the level of strength required to stand up to the process of
creating a thin film. In short, a material for creating the perfect diaphragm for reproducing accurate sound
was born.
Liquid Crystal Polymer Film Liquid Crystal Polymer Film
2
(GB)