Fostex TH909 - What To Know & Where To Buy

Pricing and availability

We compare 600+ stores and found this item at 5 stores. Prices updated May 23, 2026.

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Price

$2,249.99

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5.0 (10)

$2,249.99

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5.0 (1)

$2,249.99

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$2,249.99

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4.8 (4)

$1,777.00

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Average Price: $2,155

High-end/Boutique

$100

$301+

Price Tier

In the Headphones & In-Ear Monitors category, Fostex TH909 is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "Fostex TH909". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Immerse yourself in the world of sound with the Fostex TH909 headphones, where premium craftsmanship meets exquisite audio performance. This flagship model is an evolution of the esteemed TH900mk2, featuring an open-back design that enhances your listening experience with an expanded sound field and improved acoustic precision. With its 50mm neodymium magnet driver, offering an impressive 1.5 Tesla magnetic flux density, the TH909 delivers unparalleled dynamic range and low distortion, ensuring every note and beat is captured with clarity.

The headphones boast a unique "Biodyna" diaphragm, expertly engineered to reproduce rich low frequencies, a natural mid-range, and sharp high frequencies. A standout feature is its housing, crafted from Japanese ornamental cherry birch and finished with a luxurious Urushi lacquer, offering not only aesthetic appeal but also excellent acoustic properties. The double-layer metal grills add a touch of elegance, diversifying resonance points for a more nuanced sound.

Comfort is not compromised; the synthetic leather earpads are designed with low-resilience urethane padding for prolonged listening sessions without fatigue. The detachable cable, made from 7N OFC copper, ensures superior signal quality and durability. These headphones are not just an audio device; they are a masterpiece of design and technology, promising to elevate your auditory journey.

Key Features:

Open-back design with enhanced sound field
1.5 Tesla 50mm neodymium magnet driver
"Biodyna" diaphragm for rich bass and clear highs
Japanese cherry birch housing with Urushi lacquer
Synthetic leather earpads with low-resilience padding
Detachable 7N OFC copper cable
Frequency range: 5 - 45,000 Hz
Impedance: 25 ohms
Sensitivity: 100dB / mW
Elegant headphone stand included

Product specs

Available since	December 2018
Design	Over-Ear
System	Open
Impedance	25 Ohms
Frequency range	5 Hz – 45000 Hz
Adaptor	No
Replaceable Cable	Yes
Colour	Black/Red
Max. SPL	100 dB
Sensitivity	100 dB
Type Of Connector	Jack
Weight	390 g
Replacable Cable	1
Marrone/Argento	Red

FAQs

What are the core sound characteristics of the Fostex TH909 headphones?: The Fostex TH909 headphones are known for their wide dynamic range and low distortion, delivering rich low frequencies, a natural mid-range, and excellent high-frequency reproduction thanks to their "Biodyna" diaphragm material.
Are the Fostex TH909 headphones suitable for mixing and mastering?: Yes, the open-back design and wide frequency range of 5 Hz to 45,000 Hz make the Fostex TH909 headphones suitable for critical listening applications like mixing and mastering.
Can I replace the cable on the Fostex TH909 headphones?: Yes, the Fostex TH909 headphones feature a replaceable cable, allowing for easy maintenance and customization, including support for balanced connections with an optional XLR cable.
How comfortable are the Fostex TH909 headphones for extended use?: The Fostex TH909 headphones feature newly designed ear pads with a low-resilience cushion, providing a comfortable fit for long listening sessions while maintaining optimal audio performance.
What makes the Fostex TH909 headphones visually unique?: The Fostex TH909 headphones boast a luxurious Japan Lacquer Bordeaux finish, crafted by the Sa-kamoto Urushi Factory, and feature double-layer metal grills for a distinct and elegant appearance.

Videos

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Z Reviews

Z Review - Fostex TH909 [Schizophrenia Embodied]

Z Reviews

Fostex TH909 In Depth Review (4K) - A Vocal Masterpiece

Minidisc

Fostex TH909

Charles PIERRE

Fostex TH909 TH900 MiniDSP Soundcheck und Review Deutsch TechBoss

Tech Boss

Fostex TH909 | macht nichts falsch aber sehr vieles richtig

Damir Franc

Fostex TH909 Quick Review (4k)

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Fostex TH909 Headphones Unboxing | Moon Audio

Moon Audio

Reviews

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PROS

Clarity, low end, transients, and layering are top-of-the-line
Impressive subwoofer-like bass with slow decay, without muddying the mids
Clear mids and non-sibilant highs offer a quality sound experience
Offers a 3D sound extension in all directions, providing an immersive listening experience
Comfortable fit, even after extended wear
Aesthetically pleasing design and build quality
Works well with a variety of audio sources, including gaming controllers and DACs

CONS

Amp picky due to low impedance, not all high-end amps pair well
Soundstage may not be as expansive as some competitors
Not truly open-back, limiting expected soundstage expansion
Highs can become shrill if not paired with the right amp

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Fostex TH909.

Comparisons

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Some owners highlight that the TH909 has less recessed mids compared to the TH900, with a specific focus on a small dip in the 1kHz range.
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Some found the TH909 to have a less impactful bass compared to the TH900, with more pronounced and bloated mids, diverging significantly from the desired V-shaped sound signature.
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Beyerdynamic headbands nearly fit perfectly, offering an alternative to the stock headband; aftermarket versions often fall short in length.
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Mods and upgrades

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Swapping TH900 cups onto the TH909 results in diminished bass and pronounced mids, contrary to expectations.
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A modder successfully created an open-back version using TH900 drivers in a D2000 chassis, achieving a linear and neutral sound, unlike the TH909's tuning.
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ZMF Pilot and Co-Pilot pads are popular comfort upgrades; Pilot pad offers better grip, while the Co-Pilot tends to slip off.
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A ZMF crescent pad replacement significantly improves comfort and visual appeal, providing a solution for the original headband discomfort.
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Features and functionality

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The TH909 is noted for its crisp treble that can become fatiguing, with the Oratory1990 EQ recommended to mitigate this effect.
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The TH909's treble is less sibilant than the TH900, which some find an improvement for longer listening sessions.
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Build quality

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The maroon finish, described as dark and premium, is particularly praised for its aesthetic appeal.
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The headband's thin foam provides minimal support, making the metal band feel prominent, leading to discomfort during extended use.
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Setup and maintenance

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The proprietary Fostex connectors are mentioned, with Furutech replacements costing around $50 per pair, indicating a potential maintenance expense.
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Removing the original headband for replacement requires careful handling of screws to avoid stripping, with a non-destructive method available by unscrewing L/R panels.
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User experience

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Owners report that the TH909 requires careful DAC and amp pairing to achieve optimal sound, likening the process to wine pairing.
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A user canceled their TH909 preorder after auditioning it, noting disappointment in its deviation from the TH900's sound profile, particularly in bass performance.
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Critic Reviews

Fostex TH909 Review – Fun in its Purest Form! - Soundnews

soundnews.net

The Fostex TH909 delivers an exhilarating listening experience with its impressive bass and speed, making it a joy for those who love to rock out. Its stunning cherry birch ear-cups and lightweight design enhance comfort during extended use. However, while these headphones excel in fun and engaging sound, they lack the ultimate resolution and spaciousness found in higher-end models. Additionally, the absence of a hard case in the packaging feels like a missed opportunity for a premium product. Overall, the TH909 is a top contender for dynamic headphone enthusiasts seeking both style and performance.

positive

Full Review

Fostex TH909 Review

mimic-audio.com

The Fostex TH909 dazzles with its stunning cherry birch design and lightweight comfort, making them a visual and auditory delight. Their engaging sound signature boasts a lively balance, particularly in the mids and lows, delivering clear vocals and punchy bass without sounding muddled. However, while the highs are bright and well-defined, they may border on excessive for some listeners. Soundstage performance is solid but not exceptional, which may disappoint those seeking immersive audio experiences. Ultimately, the TH909 shines in its price class, offering a compelling mix of energy and refinement, appealing to both casual listeners and audiophiles alike.

positive

Full Review

Fostex TH909 Review - Headfonia Reviews

headfonia.com

The Fostex TH909 stands out with its engaging sound profile, offering impressive bass depth and a mid-forward presentation that excels with vocals. Its timbre is refreshingly natural, making it a versatile choice across genres. However, while it provides an exciting listening experience, the soundstage lacks the expansive quality found in some competitors, and the treble might be too bright for some. Despite these quirks, the TH909's unique design and craftsmanship make it a compelling option for audiophiles seeking something distinctive. Overall, it's a well-rounded headphone that successfully delivers excitement without sacrificing quality.

positive

Full Review

Fostex TH909 Review — Headfonics

headfonics.com

Fostex's TH909 is a stunning showcase of craftsmanship and sound clarity, offering a beautifully designed, open-back experience that excels in midrange purity and spaciousness. Its bass response is impressive for a clinical headphone, though those seeking heavy thump may be left wanting. The soundstage is expansive, with great imaging and separation, making it a joy for audiophiles. However, it requires ample power to shine, and the included hard case feels a bit underwhelming for the price tag. Overall, it’s a remarkable headphone that balances artistry and high-fidelity sound, albeit with minor trade-offs.

positive

Full Review

SoundStage! Solo | SoundStageSolo.com - Fostex TH909 Headphones

soundstagesolo.com

The Fostex TH909 headphones are a luxurious audio option, boasting a flattering sound profile that favors bass without losing detail. Their comfort is commendable, making them ideal for extended listening sessions. However, at a steep price of $1,799.99, the lack of a balanced cable and a sturdy case is a letdown. The midrange could also be more pronounced, which may detract from certain recordings. Overall, while the TH909s deliver impressive performance and aesthetics, they might not justify the high cost for everyone, especially given the competition in the audiophile space.

positive

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