Field Test · Studio Gear Review
Fostex TH616
Technical assessment of the Fostex TH616 open-back headphones
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Spec Sheet
- 50 mm Neodymium driver with BIODYNA cone
- Design: over-ear
- Style: open
- Dynamic
- Frequency range: 5 – 45,000 Hz
- Impedance: 25 Ohm
- Sensitivity: 96 dB (@1kHz, 1mW)
- Ear pads made of low-resilience urethane padding (artificial leather)
- Black walnut wood housing
- Detachable cable with two-sided cable routing
- Hi-FC copper cable
- Cable length: 3 m
- Connection: 6.3 mm stereo jack
- Weight (without cable): 370 g
- Colour: Wood / Black
- Including leather bag and manual
Studio Log
| Available since | March 2024 |
|---|---|
| Item number | 587779 |
| Sales Unit | 1 piece(s) |
| Design | Over-Ear |
| System | Open |
| Impedance | 25 Ohms |
| Frequency range | 5 Hz – 45000 Hz |
| Adapter | Yes |
| Replacable Cable | Yes |
| Marrone/Argento | Black, Brown |
| Sensitivity | 96 dB |
| Type Of Connector | Jack (stereo) |
| Weight | 370 g |
Demo Footage
Field Photography
QC Pass — Field Test
Customer Review Summary
Introduction to the Fostex TH616
Released in March 2024, the Fostex TH616 stands out as an open-back, over-ear model aimed at audiophiles and professionals seeking clarity and precision. Priced at £619, these headphones feature a 50mm neodymium driver paired with a BIODYNA cone, offering a wide frequency response from 5 Hz to 45 kHz. The unit employs a 25 Ohm impedance and a sensitivity rating of 96 dB, typical of high-end monitoring headphones.
Design and Build Quality
The Fostex TH616 combines classic design elements with modern materials. Its housing is made from black walnut wood, contributing to both aesthetic appeal and acoustic performance by reducing unwanted resonances. The ear pads use low-resilience urethane padding covered in artificial leather, providing comfort during extended sessions.
Weighing 370 grams without the cable, the headphones maintain a comfortable fit with an over-ear style and open acoustic system, improving soundstage and reducing ear fatigue. The detachable 3-metre Hi-FC copper cable with dual-sided routing attaches via a standard 6.3 mm stereo jack, allowing easy replacement or upgrade.
Sound Performance
The TH616 impresses with its detailed and transparent sound signature. The extensive frequency range ensures solid bass presence down to 5 Hz, while crisp highs extend well beyond the audible spectrum up to 45 kHz, enhancing the perception of air and detail.
Key to its sonic character is the clarity in the upper frequencies and the ability to articulate transient sounds effectively. Reviews from experienced listeners highlight the distinct “snap” of kick drums and other dynamic elements, suggesting that the TH616 offers enhanced transient response compared to other models in the same price category.
Comparison and Listening Experience
- Compared to other high-end headphones tested in a professional retail environment, including models from Audeze, the TH616 provided a more convincing sound in terms of clarity and transient response.
- Users reported a noticeably clearer presentation of highs and a well-defined low end that maintains musicality without bloat or distortion.
- The open design contributes to a spacious soundstage, facilitating detailed mixing and critical listening tasks.
Practical Considerations
While the artificial leather ear pads are comfortable, some users note that the material does not absorb moisture, which may cause discomfort during long warm-weather use. The inclusion of a leather carrying bag and a manual adds to the premium package, though the bulk of the 3-metre cable might necessitate cable management in mobile or small studio setups.
Conclusion
The Fostex TH616 delivers a sound experience geared towards listeners who prioritise precision and musical detail. The combination of a finely crafted wooden enclosure, dynamic driver technology, and a broad frequency range positions this model as an excellent choice for studio professionals and discerning audiophiles.
Its price point reflects a well-engineered headphone capable of revealing sonic subtleties missed by others in its class. While the leather earpads might not suit all environments, the overall package offers significant value for users seeking an open, natural sound with excellent transient accuracy.
