Fostex
Fostex TH900mk2
Best flagship headphones for audiophiles seeking immersive, high-resolution sound.
Experience the evolution of premium audio with the Fostex TH900mk2 headphones. Engineered for exceptional sound quality, these closed-back stereo headphones deliver high-resolution audio through an advanced "Biodyna" diaphragm and a powerful neodymium magnetic circuit. Enjoy immersive listening with a wide dynamic range and superior comfort thanks to protein leather ear pads. The detachable cable system enhances user-serviceability, making these headphones a sophisticated choice for discerning listeners seeking both performance and durability.
$1625.00
Owner Satisfaction
4.5
/ 5
Category Rank
791
/ 6142
#791 in Headphones
Price vs Category Average
+176%
Above average
Driver
50
/ Dynamic, mm
Who it's for
- Critical listeners seeking rapid transient response and micro-detail
- Collectors valuing artisanal craftsmanship and premium aesthetic design
- Listeners wanting open-back spaciousness in a private closed-back design
Who should skip it
- Purists who prefer a flat, neutral frequency response
- Budget-conscious buyers seeking high-value entry-level gear
- Audiophiles who enjoy experimenting with standard aftermarket cable upgrades
Performance breakdown
Sonic Resolution
Biodyna drivers deliver exceptional clarity across the entire frequency spectrum.
Bass Impact
Powerful neodymium magnets provide deep, authoritative lows with remarkable control.
Build Quality
Premium materials and a robust chassis ensure long-term durability for enthusiasts.
Comfort Ergonomics
Protein leather pads offer a plush, fatigue-free experience during long sessions.
Isolation Performance
Closed-back design effectively blocks ambient noise for focused, private listening.
Maintenance Ease
Detachable cable system simplifies repairs and allows for easy custom upgrades.
Key Specs
Driver
Dynamic, 50 mm
Operation type
Closed
Impedance
25 ohm
Sensitivity
100 dB (at 1 kHz, 1 mW)
Frequency Response
5 Hz – 45 kHz
Maximum Input Power
1,800 mW
Weight
390 g (excluding the cable)
Cable
Detachable 3m 1/4” unbalanced stereo phone
Features
- Second generation of flagship TH900 headphones
- Detachable cable for easy replacement
- Biodyna diaphragm for high-resolution sound
- Powerful neodymium magnet system
- Protein leather ear pads for comfort
- Closed-back design for isolation
- Wide dynamic range
- Premium audio performance
What customers say
The Fostex TH900mk2 receives high praise for its exceptional quality and engaging audio presentation. Owners consistently highlight the luxurious feel and stunning appearance of the handcrafted Japanese Urushi lacquer cups, establishing these headphones as a true statement piece. Sonically, the experience is deeply immersive. Listeners note the powerful yet controlled bass response, which delivers significant impact while maintaining clarity. This dynamic tuning, paired with detailed treble, creates an exciting sound across many music genres. Enthusiasts value this distinct character and the impressive soundstage for a closed back design. The inclusion of detachable cables is also viewed as a welcome enhancement to this highly regarded flagship product.
Know before you buy
The Biodyna diaphragm is designed to provide high-resolution audio with exceptional detail and a wide dynamic range. It allows the headphones to reproduce subtle nuances in your music, resulting in a more immersive and accurate listening experience.
With an impedance of 25 ohms and a sensitivity of 100 dB, these headphones are relatively easy to drive. While they will work with mobile devices, you will likely need a high-quality external DAC or amplifier to fully unlock their sonic potential and dynamic range.
The closed-back construction provides significant passive noise isolation, making these a great choice for environments where you want to block out ambient noise or prevent your music from leaking to others. It also contributes to the headphones' punchy, controlled bass response.
Yes, the TH900mk2 features a detachable cable system. This makes it easy to replace the cable if it becomes damaged or to swap it out for a different connection type if you prefer.
The TH900mk2 is equipped with protein leather ear pads designed for comfort and durability. While they are well-padded, they weigh 390 grams, so they have a substantial feel on the head that some users find very secure, though they are heavier than many lightweight consumer models.
These headphones are known for a V-shaped sound signature, characterized by deep, impactful bass and clear, sparkling highs. They offer a wide soundstage that is quite rare for a closed-back headphone, providing an engaging and energetic listening experience.
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