Fostex
Fones de ouvido dinâmicos abertos premium Fostex TH808
Best open-back headphones for audiophiles seeking natural, high-fidelity sound.
Immerse yourself in premium sound with the Fostex TH808 open-back dynamic headphones, a masterpiece crafted in Japan and inspired by the flagship TH909. These headphones boast exquisite solid black walnut wood housings with elegant aluminum accents. At their heart are proprietary "BIODYNA" diaphragm drivers, utilizing enhanced biocellulose fiber for superior acoustic performance. The powerful 1.5 Tesla magnetic circuit ensures remarkable responsiveness and a broad dynamic range, delivering detailed highs and a rich low-mid frequency response. The open-back design, enhanced by wood resonance, provides a natural, comfortable soundstage, complete with a high-purity OFC cable.
$1299.99
Owner Satisfaction
4.7
/ 5
Category Rank
74
/ 6142
#74 in Headphones
Price vs Category Average
+121%
Above average
Type
Dynamic with open back
/ Dynamic with open back
Who it's for
- Audiophiles seeking expansive, three-dimensional soundstages for critical listening
- Listeners demanding rapid transient response and exceptional musical clarity
- Music lovers prioritizing long-term comfort and premium build quality
Who should skip it
- Budget-conscious buyers looking for entry-level or mid-range audio gear
- Commuters or office workers needing isolation in noisy environments
- Casual listeners wanting a simple, plug-and-play audio solution
Performance breakdown
Acoustic Soundstage
Open-back design creates an expansive, natural listening environment for critical sessions.
Build Craftsmanship
Solid black walnut housings offer a premium aesthetic and resonance profile.
Driver Precision
Biocellulose drivers deliver exceptional clarity across the entire frequency spectrum.
Comfort Ergonomics
Low-resilience earpads ensure fatigue-free listening during extended studio or home use.
Driveability
Low impedance makes these headphones versatile enough for most high-end sources.
Signal Fidelity
High-purity OFC cabling ensures minimal signal loss for pure audio reproduction.
Key Specs
Type
Dynamic with open back
Driver
Φ50mm Neodymium Magnet / BIODYNA Diaphragm
Impedance
25 ohm
Sensitivity
96dB/mW
Frequency Response
5 – 45,000 Hz
Maximum Input
1,800 mW
Weight
Approx. 370g (excluding cable)
Plug
Φ ¼” / 6.3mm gold-plated standard stereo plug
Features
- Premium open-back dynamic sound
- Luxurious black walnut wood housings
- Proprietary BIODYNA diaphragm drivers
- Powerful 1.5 Tesla magnetic circuit
- Natural, spacious soundstage
- Includes high-purity OFC cable
- Detachable, rhodium-plated connectors
- Comfortable low-resilience earpads
What customers say
The Fostex TH808 receives high praise centered on its exceptional sound quality. Reviewers consistently note the audio signature is natural and highly detailed, creating an immersive soundstage. Clarity in the midrange and treble allows for precise perception of musical textures. The bass response is quick and impactful, achieving excellent frequency balance. Although the initial cost is substantial, the consensus is that this world class performance fully justifies the investment for audiophiles seeking a deeply rewarding listening experience.
Know before you buy
The open-back design allows air to move through the earcups, which prevents pressure buildup and creates a more natural, spacious soundstage. This makes the music feel like it is happening around you rather than inside your head, though it does mean sound will leak in and out of the headphones.
Yes, the TH808 features low-resilience earpads designed to conform to your head shape for extended comfort. At 370 grams, they are substantial, but the ergonomic design helps distribute that weight evenly.
With an impedance of 25 ohms and a sensitivity of 96dB/mW, these headphones are relatively easy to drive. While they can work with standard devices, using a high-quality dedicated amplifier will help you fully realize the potential of the 1.5 Tesla magnetic circuit and the BIODYNA drivers.
The BIODYNA drivers use enhanced biocellulose fibers to combine the rigidity needed for precise, detailed highs with the flexibility required for a rich, textured low-mid frequency response. This material choice results in a highly responsive and accurate sound signature.
Yes, the TH808 uses detachable connectors, allowing you to easily replace or upgrade the cable. The headphones come with a high-purity OFC cable featuring rhodium-plated connectors for optimal signal transmission.
Because these are open-back headphones, they do not provide noise isolation. They are best suited for quiet, controlled environments where you can fully appreciate the soundstage without outside interference.
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$1300