Fostex TH-909 Premium Open-Back Stereo Headphones

The Fostex TH-909 is a flagship model based on the closed type TH900mk2 headphones. While keeping the same sound characteristic, Fostex further expanded and increased its sound field by adopting an open type format and adjusting the acoustic circuit. TH-909 offers a wider dynamic range with low distortion using a 1.5 Tesla 50mm driver with repulsion magnet. The diaphragm is made of “Biodynina”, accomplishing rich very low frequency, natural mid range and excellent high frequency reproduction. A double layer structure etching metal is used as the housing opening to diversify the resonance points and offer a gorgeous appearance. The housing cover features a beautiful Japanese lacquer Bordeaux finish. A 7N grade high purity OFC unbalanced cable is included as standard; equipped with detachable connector. Support the balanced connection with optional XLR cable (sold separately – ET-H3.0N&BL). The detachable connector terminal and cable connector feature rhodium plating for excellent abrasion and corrosion resistance. The newly designed ear pad adopts a low-resilience cushion to achieve a comfortable fit.

Open-Back Headphones: Fostex TH909 is a flagship premium headphone based on the reputed closed type TH900mk2. It features a sound field by adopting open-back construction and adjusting the acoustic circuit design
Technology: The proprietary ‘Biodyna’ technology (bio-cellulose and inorganic fiber admixture) is used as a diaphragm material achieving rich very low frequency, natural mid-range, and especially excellent presence in high-frequency reproduction
Structure: The double-layer structure etching metal grills are used as housing opening, which diversifies the resonance points and offers a gorgeous appearance
Finish: The housing cover uses Japan Lacquer Bordeaux finish manufactured by the craftsmanship of “Sa-kamoto Urushi Factory” established in 1900
Detachable Connector: Equipped with a detachable connector that supports the balanced connection with optional XLR cable (model ET-H3.0N7BL). Internal wiring also uses 7N grade cable. The detachable connection parts use a rhodium plating finish offering high hardness, excellent abrasion, and corrosion resistance