Fostex HiFi

Fostex TH-909-LE Open-Back Premium Audiophile Headphones

Model: AMS-TH-909-LE
UPC: 636827310574
Premium open-back headphones featuring a proprietary bio-dynamic diaphragm, with acoustic tuning that unlocks its full potential
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Product Properties

Description:

Premium open-back headphones featuring a proprietary bio-dynamic diaphragm, with acoustic tuning that unlocks its full potential. Based on the TH900mk2, Fostex's highest-rated headphones ever, this newly developed open-back high-end headphone model. This product is the [Simplified Packaging Version] of the TH909. This product does not include a headphone stand. This product features simplified packaging. The included cable is 2m long with PVC sheathing (same cable material as the TH910, etc.). Body Color: Bordeaux A lacquered Bordeaux finish housing that delivers premium sound quality and the joy of ownership The surface finish of the wooden parts is achieved using a lacquer craft technique uniquely developed by Sakamoto Otosho Shoten Co., Ltd., a company founded in 1900 (Meiji 33) that applies traditional Japanese craftsmanship to modern industrial products. The lacquer used consists of a base black lacquer and an adhesive lacquer for applying the foil. To express a sophisticated sense of depth, several types of silver foil, smoked with sulfur, are applied in a torn-paper-like manner. Wood Type: Mizume Cherry A premium wood species native to Japan, derived from a variety of the birch tree (Betula). Known for its fine, dense grain and hardness, Mizume Cherry yields a beautiful surface finish, making it ideal for furniture manufacturing. For the TH909, skilled artisans meticulously hand-finish each piece. Features a BioDyna diaphragm utilizing ultra-fine bio-cellulose fiber material Leveraging expertise accumulated over many years, we blend bio-cellulose fiber with other fibers under optimal conditions. This achieves low specific gravity, high Young’s modulus, and high internal loss. Alongside delicate, high-resolution reproduction of beautiful mid-to-high frequencies, the adoption of a free edge with excellent linearity faithfully reproduces even large-amplitude low-to-mid frequencies. *”BIODYNA” is a registered trademark of Foster Electric Co., Ltd. The magnetic circuit employing a repulsive magnetic field incorporates an ultra-powerful driver unit with a magnetic flux density of 1.5 tesla. Featuring a neodymium magnet with a magnetic flux density of 1.5 tesla, it delivers an expansive dynamic range through a low-distortion, ultra-powerful high-performance magnetic circuit. The housing opening incorporates a double-layered aluminum etched part. The openings feature a unique design with double-layered aluminum etched parts that change their impression depending on light intensity and angle. Furthermore, through the opening ratio and repeated fine-tuning of each internal component, it reproduces a natural sound field that is comfortable and fatigue-free. Includes high-purity OFC unbalanced cable It comes with a 7N (99.99999%) grade high-purity OFC (Oxygen-Free Copper) unbalanced cable, which maximizes transmission capability by eliminating impurities to the utmost degree. Ear pads featuring low-rebound cushioning to reduce sound leakage We have specially designed ear pads that fit snugly around the back of the ear to minimize sound leakage. Featuring low-rebound cushions and premium synthetic leather, they provide a comfortable feel against the skin and a pleasant wearing experience even during extended use.

Model: Open-type / Dynamic-type

Driver: φ50mm Neodymium Magnet / Bio-Dynamic Diaphragm

Playback frequency range: 5 to 45,000 Hz

Impedance: 25Ω

Sensitivity: 100 dB/mW

Maximum input: 1,800 mW

Weight of main unit: Approximately 390g (excluding cord)

Cable: 2-pin, rhodium-plated specification x2 (L, R) ⇔ 6.3 mm gold-plated stereo plug / 7N (99.99999%) grade high-purity OFC 2 m ×1

Accessories: Leather-like pouch

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