FOSTEX COMPANY
3-2-35 Musashino, Akishima-shi, Tokyo, Japan 196-0021
PRINTED IN JAPAN APR 2012 553585 (8289681000)
Owner’s Manual
Thank you for purchasing the Fostex
product. We hope you will read through this
manual so that you can correctly use it.
Outstanding features:
Housing
Material: Betula grossa (Known as
Japanese Cherry Birch)
The tree is Japanese specialty and its
texture is rigid and dense. It is prized
as a fine wood for furniture produc-
tion.
Finish: Bordeaux
The TH900 housings are processed
with the unique lacquer techniques
developed by a group of artisans whose
name is Sakamoto Urushi Manufactur-
ing Co., Ltd., founded in 1900. The
housings use the traditional art of
urushi lacquer (known as Japan). This
exclusive lacquer finish not only gives
the headphone housings an elegant and
sophisticated visual aspect, but also it
improves the housings’ durability. The
process requires various meticulous
steps. Many different types of sulfur
smoked silver foils are adhered on a
black-lacquered base, like creating a
torn paper collage, and then finished
with a rich Bordeaux-wine color paint
as the overcoat. Platinum leaves are
used for the Fostex brand logos.
1.
Specifications
Headphone Cables
Thick 7N-OFC cables are exclusively
manufactured for the TH900 that
enhances low frequency reproduction.
The plug case is made of duralumin
that promises high durability.
Ear Pads
The TH900 uses protein leather. This
highly comfortable ear pad material is
made of Eggshell membrane and
successfully achieved a weight reduc-
tion of approx. 60% compared to genu-
ine leather.
Headphone Drivers
Magnetic Circuit: Magnetic repulsion
system using neodymium magnet
The magnetic repulsion system gives
the TH900 high sensitivity with wide
dynamic range.
Diaphragm: BIODYNA
Foster developed the diaphragm "BIO-
DYNA" for headphone application by
using bio-technology. BIODYNA
diaphragm is made by Bio-cellulose
and high performance inorganic fiber
admixture. The bio-cellulose is gener-
ated by acetobacter. It has extremely
fine fiber and high purity comparing to
the plant fiber cellulose. As a result,
use of BIODYNA diaphragm achieves
the high quality sound maintaining
good balance within the all frequency
bands. It also gives advantage of sound
resolution at high frequency.
2.
3.
4.
As the housings are made of wood,
they are more susceptive to mechanical
shock.
Please ensure to protect the
headphones from any physical impacts,
high temperature and humidity.
The housings are processed by the
artisans piece by piece. Please accept
that the details of finish such as color
and print pattern are varied slightly.
Design and specifications are subject
to change without notice.
Avoid extended use at high volume
levels as your hearing may be perma-
nently impaired.
You are advised never to use
headphones in situations such as
driving and cycling as your ability to
react to emergencies and your environ-
ment will be considerably reduced.
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Caution
Type
Unit
Impedance
Sensitivity
Maximum input
Reproduce frequency
Weight
HP cord
HP plug
Accessory
Dynamic
400 g (excluding HP cord)
3 m Y type 7N-OFC cord
ø 6.3 mm gold coating stereo phone plug
HP stand
L R
A silver ring is attached to the arrowed
section indicating the R (right) side
housing. No ring is attached to the L
(left) side housing.
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