{"product_id":"fostex-th616","title":"Fostex TH616","description":"\u003cdiv lang=\"en\"\u003e\n  \u003cp\u003e\u003cstrong\u003eFostex TH616\u003c\/strong\u003e is an open-back over-ear headphone released to commemorate Fostex's 50th anniversary as a limited-edition model — CNC-milled from solid black walnut with an aperture pattern referencing traditional Japanese woodcraft and the natural phenomenon of sunlight filtering through tree canopies. The 50mm BioDyna driver with a 1 Tesla magnetic circuit positions the TH616 one step below the TH808 and TH909 (1.5 T) while sharing the same diaphragm architecture and the same wood-housing tuning philosophy. Hand-assembled unit by unit in Japan. Despite the original limited-edition designation, the TH616 has entered Fostex's regular global catalog and remains available through international distribution.\u003c\/p\u003e\n\n  \u003ch3\u003eMilled black walnut housing: aperture geometry as modal damping tool\u003c\/h3\u003e\n  \u003cp\u003eEach opening in the TH616's housing is precisely dimensioned to avoid generating resonance at specific frequencies — the aperture pattern is not purely aesthetic but functions as a modal vibration suppressor by eliminating surface symmetry on the enclosure. Solid black walnut has higher density and internal damping than the acacia used in the TH810\/818, giving the TH616 a darker, more focused housing resonance that acoustically aligns it closer to the TH808. The baffle plate is made from high-specific-gravity resin, a material selected specifically to minimize resonance noise — translating according to Fostex into higher resolution, a richer midrange, and better-controlled bass reproduction. All mechanical components including the yoke and headband adjustment are machined from aluminium for rigidity without added weight. Internal wiring is 7N-grade OFC.\u003c\/p\u003e\n\n  \u003ch3\u003eBioDyna 1 T driver, low-resilience earpads and HiFC cable\u003c\/h3\u003e\n  \u003cp\u003eThe 50mm BioDyna transducer with a neodymium magnet at 1 Tesla magnetic flux density delivers a wide dynamic range at low distortion — the lower magnetic field relative to the TH808\/818\/810 (1.5 T) places the driver at a different operating point, which informs the TH616's distinct bass character and transient behavior. The bio-cellulose and composite fiber diaphragm is constructionally identical to higher models — low specific gravity, high Young's modulus, high internal loss, and a free-edge design for linear large-amplitude reproduction in the low midrange. Earpads use low-resilience urethane foam covered in high-grade synthetic leather — soft, wear-resistant, and comfortable during extended sessions. Included cable: 3 m Y-type, pure copper HiFC (high-performance copper with specialized processing), terminating in a 6.3mm plug. Detachable 2-pin connector with rhodium-plated contacts on both ends. Balanced connection via the optional XLR cable ET-H3.0N7BL.\u003c\/p\u003e\n\n  \u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eOpen-back over-ear design — limited-edition Fostex 50th anniversary model, now in regular global catalog\u003c\/li\u003e\n    \u003cli\u003eCNC-milled solid black walnut housing — aperture pattern referencing Japanese woodcraft and komorebi (light through leaves)\u003c\/li\u003e\n    \u003cli\u003eAperture geometry engineered to eliminate modal vibrations and suppress resonance at specific frequencies\u003c\/li\u003e\n    \u003cli\u003e50mm BioDyna driver: bio-cellulose diaphragm, neodymium magnet, 1 Tesla magnetic flux density\u003c\/li\u003e\n    \u003cli\u003eHigh-specific-gravity resin baffle plate — resonance noise reduction for improved resolution and midrange\u003c\/li\u003e\n    \u003cli\u003eAll-aluminium mechanical components\u003c\/li\u003e\n    \u003cli\u003eEarpads: low-resilience urethane foam + high-grade synthetic leather\u003c\/li\u003e\n    \u003cli\u003eDetachable cable: 3 m Y-type, pure copper HiFC, 6.3mm plug\u003c\/li\u003e\n    \u003cli\u003eInternal wiring: 7N OFC\u003c\/li\u003e\n    \u003cli\u003e2-pin connector with rhodium-plated contacts on both ends\u003c\/li\u003e\n    \u003cli\u003eBalanced XLR connection via ET-H3.0N7BL (sold separately)\u003c\/li\u003e\n    \u003cli\u003eHand-assembled unit by unit, manufactured in Japan\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTECHNICAL SPECIFICATIONS\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eType: open-back, over-ear\u003c\/li\u003e\n    \u003cli\u003eDriver: 50mm BioDyna (bio-cellulose + composite fibers), neodymium magnet, 1 T magnetic flux density\u003c\/li\u003e\n    \u003cli\u003eFrequency response: 5 Hz – 45,000 Hz\u003c\/li\u003e\n    \u003cli\u003eImpedance: 25 Ω\u003c\/li\u003e\n    \u003cli\u003eSensitivity: 96 dB\/mW\u003c\/li\u003e\n    \u003cli\u003eMaximum input power: 1,800 mW\u003c\/li\u003e\n    \u003cli\u003eWeight: approx. 370 g (without cable)\u003c\/li\u003e\n    \u003cli\u003eHousing: solid black walnut (CNC-milled), high-specific-gravity resin baffle plate\u003c\/li\u003e\n    \u003cli\u003eMechanical components: aluminium\u003c\/li\u003e\n    \u003cli\u003eEarpads: low-resilience urethane foam + high-grade synthetic leather\u003c\/li\u003e\n    \u003cli\u003eInternal wiring: 7N OFC\u003c\/li\u003e\n    \u003cli\u003eIncluded cable: 3 m Y-type, pure copper HiFC, 6.3mm plug\u003c\/li\u003e\n    \u003cli\u003eCable connector: 2-pin, rhodium-plated contacts (both ends)\u003c\/li\u003e\n    \u003cli\u003eBalanced cable: XLR ET-H3.0N7BL (sold separately)\u003c\/li\u003e\n    \u003cli\u003eManufacturing: hand-assembled in Japan\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"FOSTEX","offers":[{"title":"Default Title","offer_id":53693019947345,"sku":"59505","price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8741\/0769\/files\/FostexTH6161.jpg?v=1778412508","url":"https:\/\/wrdtunes.com\/fr\/products\/fostex-th616","provider":"Wired Tunes","version":"1.0","type":"link"}