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Overview
The TH808 is a premium headphone crafted from Fostex's top-tier open-type model, TH909. It is meticulously tuned and features a high-grade black walnut solid wood housing with aluminum etched parts and equipped with a proprietary technology in-house made “BIODYNA” diaphragm driver unit.
The proprietary in-house driver unit, crafted from technologies honed over numerous years, blends bio-cellulose fiber with various other materials on the diaphragm.This meticulous combination, under optimal conditions, results in a diaphragm with low specific gravity, high Young's modulus, and superior internal loss.Utilizing a repulsive magnetic circuit with neodymium magnets, the 1.5 Tesla ultra-strong magnetic circuit delivers exceptional responsiveness and an expansive dynamic range across all frequencies.This design enables the reproduction of exquisite mid-high frequencies with detailed resolution, while also faithfully capturing the rich low mid-range with significant amplitude.
The housings, crafted from premium solid black walnut, showcases a distinctive design. Its open aperture, coupled with a dual arrangement of etched aluminum components, offers varying impressions depending on the light and viewing angle. The carefully calibrated aperture ratio and precise fine-tuning of each internal component, en-hanced by the resonance of the solid black walnut wood, result in a natural sound field that offers a comfortable and fatigue-free listening experience.
The removable connector on the headphone body, as well as the detachable connector terminal, are both rhodium-plated terminals. Rhodium plating is renowned for its durability, resistance to wear, and ability to protect against corrosion. Achieving a balanced connection is possible with the use of an XLR-terminal cable (ET-H3.0N7BL), which is available for separate purchase. Features
• Premium Headphones for Audiophiles
• 1.5 Tesla Ultra-Strong Neodymium Magnets
• Etched Aluminum Components
• Comfortable Earpad Cushions
• Rhodium-Plated Headphone Jacks
• BIODYNA Driver Unit from Top-Tier TH909
• Solid Walnut for Optimal Resonance
• Exquisite Mid Highs with Rich Low Mids
• Detachable 2-Pin OFC Y-Cable
• Includes Leather Pouch
What's In The Box?
• Fostex TH808 Over-Ear Open-Back Dynamic Headphones
• Leather Pouch
• Limited 1-Year Manufacturer Warranty
Generating expert take…
Fostex emerged in 1973 as the branded consumer and professional division of Foster Electric Co., Ltd., a Japanese loudspeaker manufacturer founded in 1949. Established to bring Foster's high-quality speaker components directly to dealers and customers, Fostex quickly gained international recognition through innovative products like the T20RP headphones and 6301 studio monitors. The brand's foundation rests on Foster's position as one of the world's largest OEM loudspeaker developers, employing tens of thousands across multiple countries and manufacturing millions of speaker units monthly.
The company built its reputation across three interconnected product categories: professional studio equipment, consumer headphones, and powered monitor speakers. Fostex became particularly renowned for pioneering RP (Regular Phase) technology, which delivers clear sound with high sensitivity and wide dynamic range—a signature that defines their headphones, microphones, and speaker designs. Beginning in 1978, the brand expanded into professional speaker development, eventually introducing the PM series of powered monitors and establishing itself as a trusted choice for recording studios, broadcast facilities, and serious home listeners.
Fostex occupies a distinctive middle ground in the audio market: neither ultra-premium boutique nor mass-market consumer, but rather a respected specialist brand with deep professional credentials. Their products appeal to recording engineers, studio owners, and discerning hi-fi enthusiasts who prioritize accuracy and reliability over luxury positioning. The 6301B monitor remains an industry standard after decades in production, while the T20RP headphones maintain popularity among studio professionals—testament to Fostex's enduring reputation for sonic integrity and engineering excellence.
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