Experience natural, high-resolution audio with the Fostex TH616, a premium open-back headphone designed for discerning listeners. Crafted from solid black walnut, each earcup offers both acoustic excellence and refined aesthetics inspired by traditional Japanese woodworking.

At the core lies a 50mm dynamic driver with a powerful 1 Tesla magnetic circuit, delivering a wide dynamic range with minimal distortion. The Biodyna diaphragm, made from biocellulose fibers, ensures rich bass, smooth mids, and detailed highs. The open-back design evokes the beauty of sunlight filtering through trees, while precisely milled openings reduce modal resonance.

The TH616 features a detachable HiFC copper cable with rhodium-plated connectors for reliable performance and optimal conductivity. Lightweight aluminum parts and a premium artificial leather headband and pads ensure long-lasting comfort during extended listening sessions. Proudly assembled in Japan to commemorate Fostex’s 50th anniversary.

Key Features

• Solid black walnut open-back earcups with precision milling

• 50mm dynamic drivers with 1 Tesla magnetic flux density

• Biodyna biocellulose diaphragm for natural and detailed sound

• Detachable pure copper HiFC cable with rhodium-plated connectors

• Aluminum construction and premium artificial leather pads

• Designed and assembled in Japan in limited quantities

Technical Specifications

• Type: Over-ear, open-back dynamic headphones

• Driver Size: 50 mm

• Impedance: 25 Ohms

• Frequency Response: 5 Hz – 45 kHz

• Sensitivity: 96 dB/mW

• Maximum Input Power: 1800 mW

• Connector: 1/4" (6.3 mm) TRS, gold-plated

• Cable: Detachable 3 m straight cable

• Weight: 370 g (without cable)

• Included: Leather pouch

Applications

• Audiophile-grade music listening

• Home hi-fi audio systems

• Studio reference monitoring (critical listening)

• High-end headphone setups

• Premium headphone collections