Fostex
Fostex TH-900 MK2
Best high-end closed-back headphones for discerning audiophiles seeking premium sound quality.
Experience unparalleled audio with the Fostex TH-900 MK2 Limited Edition Onyx Black headphones. These closed-back, over-ear headphones are designed for studio and professional use, featuring a unique Neodymium magnetic circuit with 1.5 tesla magnetic flux density for a wider dynamic range. The proprietary "Biodyna" diaphragm ensures fine, high-resolution sound reproduction. Crafted with Japanese traditional "Urushi" lacquer on Japanese Cherry Birch housings and protein leather ear pads made from eggshell membrane, they offer both exquisite aesthetics and maximum comfort. The detachable unbalanced cable is constructed from 7N grade OFC.
$1899.99
Owner Satisfaction
4.5
/ 5
Category Rank
791
/ 6142
#791 in Headphones
Price vs Category Average
+223%
Above average
Driver
50
/ Dynamic, mm
Who it's for
- Collectors valuing luxurious craftsmanship and long-term wearing comfort
- Listeners desiring an expansive, immersive soundstage in closed-back headphones
- Audiophiles seeking dynamic, detailed, and punchy sound performance
Who should skip it
- Listeners sensitive to bright or fatiguing high-frequency output
- Budget-conscious buyers looking for entry-level or mid-range audio gear
- Users wanting easy access to universal aftermarket cable replacements
Performance breakdown
Dynamic Range
The 1.5 tesla magnetic flux density delivers exceptional sonic depth.
Build Craftsmanship
Traditional Urushi lacquer finish elevates these to a functional art piece.
Low-End Response
Anniversary tuning provides a smooth, authoritative, and deeply satisfying bass profile.
Comfort Ergonomics
Eggshell membrane protein leather pads offer a luxurious, long-session fit.
Resolution Clarity
Proprietary Biodyna diaphragms capture microscopic details with stunning high-frequency precision.
Connectivity Versatility
High-grade 7N cabling is excellent but lacks modern balanced connection options.
Key Specs
Driver
Dynamic, 50mm
Operation type
Closed
Impedance
25 ohm
Sensitivity
100dB (at 1kHz, 1mW)
Frequency Response
5Hz – 45kHz
Maximum Input Power
1,800 mW
Weight
390g (excluding the cable)
Cable
Detachable 3m 1/4” unbalanced stereo phone (model ET-H3.0N7UB)
Features
- Uniquely designed Neodymium magnetic circuit with 1.5 tesla magnetic flux density for wider dynamic range.
- Proprietary "Biodyna" diaphragm for fine and high resolution sound reproduction.
- Housings finished with Japanese traditional "Urushi" lacquer by a 110-year-old artisan group.
- Ear pads made of protein leather from eggshell membrane for maximum comfort.
- Detachable unbalanced cable made of 7N grade OFC with a durable duralumin plug case.
- Custom made Onyx Black colored Urushi lacquer with special production treatments.
- Anniversary audio tuning featuring smooth and straight lows.
What customers say
Customers consistently praise the Fostex TH 900 MK2 for its exceptional sound quality, delivering a vibrant and dynamic listening experience with remarkable clarity and impactful bass. The exquisite craftsmanship and stunning Urushi lacquer finish are frequently highlighted, underscoring its premium design and robust build. While a significant investment, many users feel its unique sonic signature and luxurious construction justify the cost, making it a cherished piece for serious audio enthusiasts. The overall sentiment reflects deep satisfaction with both its acoustic performance and aesthetic appeal.
Know before you buy
While the 25-ohm impedance makes them relatively easy to drive, these are designed primarily for studio and professional environments. They are large, wired, over-ear headphones that lack a microphone and do not fold, making them less practical for mobile use.
The proprietary Biodyna diaphragm is engineered to provide high-resolution audio reproduction with exceptional detail. It works in tandem with the 1.5 tesla magnetic flux density to deliver a wider dynamic range and precise sound clarity.
Yes, the TH-900 MK2 features a detachable cable system. It uses a 2-pin connector, allowing you to easily swap or replace the included 7N grade OFC unbalanced cable.
The closed-back design provides excellent isolation from ambient noise, making it ideal for studio monitoring or focused listening sessions. It also contributes to the headphone's signature sound profile, which features deep, controlled, and straight-line bass response.
The Onyx Black housings are finished using traditional Japanese Urushi lacquer, applied by a 110-year-old artisan group. This process is not only for aesthetics; it is a labor-intensive, time-honored technique that gives each pair a unique, high-end finish.
Yes, the ear pads are crafted from protein leather derived from eggshell membrane. This material is chosen for its soft texture and breathability, providing significant comfort during extended professional use.
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