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Fostex TH616 50TH 50th Anniversary Limited Edition Headphones

Fostex TH616 50TH 50th Anniversary Limited Edition Headphones

The Fostex TH616 is produced in commemoration of the 50th anniversary of the birth of Fostex, which is carved from high-quality solid black walnut wood in a design reminiscent of traditional Japanese woodwork, and is made into an open housing while achieving reliable acoustic performance.

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The housing is made of solid natural wood.
For this reason, each piece has differences in wood grain, skin, color, knots, etc., but this does not affect the sound quality at all.
Thank you for your understanding.

TH616 hp 980x399

● Open housing carved from solid black walnut into a shape that resembles a beam of light.

The housing is carved from solid black walnut, a high-quality wood, and has an open opening with a design inspired by the fantastic natural phenomenon of sunlight shining through gaps in the trees. This machined design not only reduces weight and maintains rigidity, but also avoids uniformity on the housing surface, suppressing the generation of mode vibrations and reducing unnecessary resonance. In addition, in order to eliminate the effect on the sound caused by the resonance of the open openings, he made all the openings have different areas to suppress the occurrence of resonance at specific frequencies.


● Adopts a Biodyna diaphragm using ultra-fine biocellulose fiber material.

Utilizing the know-how accumulated over many years, we blend biocellulose fibers and other fibers under optimal conditions. Achieves low specific gravity, high Young's modulus, and high internal loss. In addition to delicate, high-resolution, beautiful mid- and high-frequency reproduction, the adoption of free edges with good linearity faithfully reproduces large-amplitude low-mid frequencies.

*“Biodyna” and “BIODYNA” are registered trademarks of Foster Electric Co., Ltd.


● Super strong magnetic circuit

The magnetic circuit is equipped with a 50mm driver unit with a magnetic flux density of 1 Tesla. The ultra-strong magnetic circuit provides a wide dynamic range with low distortion.


 ● High quality and lightweight mechanical parts

Aluminum is used extensively for mechanical parts, achieving a high quality feel and light weight. By using high-density resin for the baffle plate, we have reduced the generation of resonance sound, achieving high resolution, rich midrange, and high-quality bass reproduction.


 ● Detachable connector port

The cable side terminals and the detachable contact terminals on the headphone body side are rhodium plated for high hardness, wear resistance, and corrosion resistance, improving reliability. In addition, it is also possible to support balanced connections with the optional replacement balanced cable "ET-H3.0N7BL".


● High-performance pure copper headphone cable

A high-performance pure copper HiFC high-grade cable that exhibits excellent conductivity through special processing is used to clearly express all bands.

*“HiFC” is a registered trademark of Proterial Co., Ltd.


● Soft leather-like high-grade artificial leather pad with low-repulsion cushioning

It provides a comfortable fit and high sound insulation.

Main Specifications


open dynamic type


Φ50mm neodymium magnet/Biodyna diaphragm





maximum input


Play frequency band

5 to 45,000Hz

Body mass

Approximately 370g (excluding cable)


3m Y type (removable connector terminal: 2 pins, rhodium plated)

Main body side detachable part

2 pins (terminal: gold-plated base, rhodium-plated specifications)


Diameter 6.3mm gold-plated stereo standard plug


Leather pouch, instruction manual and warranty

Customer Reviews

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