Fostex
Fostex TH-900 MK2 Limited Edition Onyx Black
Best high-end headphones for audiophiles seeking premium sound and artisanal design.
Experience unparalleled audio fidelity with the Fostex TH-900 MK2 Limited Edition Onyx Black headphones. These over-ear, closed-back headphones feature a unique magnetic circuit with a 1.5 Tesla magnetic flux density for a wider dynamic range. The proprietary 'Biodyna' diaphragm ensures fine, high-resolution sound reproduction. Crafted with Japanese cherry and birch wood, the housings are finished with traditional 'Urushi' lacquer in a striking Onyx Black. For supreme comfort, the earcups are made from protein leather with an eggshell membrane. The detachable cable is constructed from 7N-grade OFC copper.
$1899.99
More TH900 Options
Owner Satisfaction
4.8
/ 5
Category Rank
5
/ 6142
#5 in Headphones
Price vs Category Average
+223%
Above average
Driver
50
/ Dynamic, mm
Who it's for
- Audiophiles seeking a vibrant, dynamic, and engaging listening experience
- Collectors valuing luxurious craftsmanship and premium Japanese design
- Listeners enjoying extended sessions without physical fatigue
Who should skip it
- Budget-conscious buyers seeking entry-level or mid-range audio gear
- Purists preferring the expansive, airy soundstage of open-back designs
- Listeners requiring a flat, neutral, or analytical sound profile
Performance breakdown
Audio Resolution
Biodyna diaphragms deliver exceptional detail and high-frequency clarity for critical listening.
Bass Performance
The 1.5 Tesla magnetic circuit provides deep, punchy, and controlled low-end response.
Build Craftsmanship
Traditional Urushi lacquer on cherry wood creates a stunning, artisanal aesthetic.
Comfort Ergonomics
Protein leather and eggshell membranes ensure long-term comfort for extended sessions.
Signal Integrity
High-grade 7N OFC copper cabling minimizes signal loss for pure audio.
Driveability
Low impedance makes these headphones easy to power with most desktop amplifiers.
Key Specs
Driver
Dynamic, 50 mm
Type
Closed
Impedance
25 ohms
Sensitivity
100 dB (at 1 kHz, 1 mW)
Frequency Response
5 Hz – 45 kHz
Maximum Input Power
1800 mW
Weight
390 g (without cable)
Cable
3m detachable 1/4" unbalanced stereo headphone (model ET-H3.0N7UB)
Features
- Exclusive magnetic circuit with 1.5 Tesla magnetic flux density for wider dynamic range.
- Proprietary 'Biodyna' diaphragm for fine, high-resolution sound reproduction.
- Traditional Japanese 'Urushi' lacquer finish on Japanese cherry and birch wood housings.
- Comfortable protein leather earcups with eggshell membrane.
- Detachable cable made with 7N-grade OFC copper.
- Special Onyx Black Urushi lacquer with a smooth, flat surface and visible wood grain.
- Anniversary audio tuning for smooth, direct bass.
- Includes premium carrying pouch and detachable cable.
What customers say
Customers consistently laud the Fostex TH 900 MK2 Limited Edition Onyx Black for its exceptional sound quality and exquisite design. Reviewers frequently highlight the headphones' remarkable clarity, detailed audio reproduction, and powerful bass, creating an immersive listening experience. The stunning onyx black finish and premium build materials also receive widespread admiration, reinforcing its status as a luxury audio product. Users appreciate the meticulous craftsmanship and the distinct aesthetic appeal that complements its superior acoustic performance. This combination of sonic excellence and sophisticated presentation defines its appeal.
Know before you buy
The Onyx Black Limited Edition features a unique Urushi lacquer finish that highlights the natural grain of the Japanese cherry and birch wood housings. While the internal audio architecture remains consistent with the high standards of the MK2 series, this edition offers a distinct, understated aesthetic compared to the traditional red finish.
With an impedance of 25 ohms and a sensitivity of 100 dB, these headphones are technically easy to power. However, to fully realize the potential of the 1.5 Tesla magnetic circuit and the Biodyna diaphragm, we recommend using a dedicated high-quality DAC or headphone amplifier.
Yes, the headphones feature a detachable cable system using rhodium-plated 2-pin connectors. This allows you to easily replace the included 7N-grade OFC copper cable if it becomes damaged or if you wish to experiment with aftermarket cable upgrades.
Despite being a closed-back design, the TH-900 MK2 is engineered to provide a surprisingly wide and immersive soundstage. The combination of the 50mm dynamic driver and the specific acoustic properties of the wood housings helps maintain a natural, expansive feel that is rare in closed-back models.
The headphones are designed for comfort with protein leather earcups and an eggshell membrane, which provide a soft, breathable fit. At 390 grams, they are substantial but well-balanced for extended audiophile listening sessions.
No, the TH-900 MK2 is designed strictly for high-fidelity audio reproduction and does not include a microphone or active noise cancellation. They are intended for use in quiet environments where you can focus entirely on the music.
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$1900