Fostex TH909 is a flagship model of premium over-ear open-back headphones, based on the successful closed-back model TH900mk2.
Features:
- cutting-edge Tesla technology;
- housing made of Japanese decorative cherry birch;
- biodynamic diaphragm;
- 50mm drivers with 1.5 Tesla neodymium magnet;
- incredible durability;
- newly designed ear cushions use a special filler with adaptive elasticity.
TH909 offers the same sound characteristics, but with a much wider soundstage due to the open-back design and improved acoustic circuitry. The headphones reproduce a wide dynamic range with low distortion thanks to the use of dynamic 50mm drivers with neodymium magnets and Tesla technology. The diaphragm, created using the unique Biodyna technology (a blend of bio-cellulose and inorganic fiber), allows for rich low frequencies, natural mids, and crystal-clear highs.
The stylish housing made of Japanese decorative cherry birch is treated with the patented Japan Lacquer Bordeaux coating from Sa-kamoto Urushi Factory. The connectors are plated with rhodium, providing durability and protection against corrosion. The headphones come with a detachable unbalanced oxygen-free copper cable, carrying case, comfortable ear cushions, and a desktop stand.
Package includes:
- Headphones
- 3-meter detachable cable
- Carrying case
- Desktop stand
- Manual.







































































