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Average Price: $164

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$100

$301+

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Based on price data from 1 merchant for "Fostex T20rp Mk3 Studio Headphones (Open)". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Dive into an immersive studio experience with the Fostex T20rp Mk3 Studio Headphones. These open-back marvels stand as a testament to Fostex's commitment to sonic excellence, refining the art of accurate sound reproduction. A legacy that spans more than three decades, the T20rp Mk3 is the culmination of Fostex’s relentless pursuit of perfection in audio monitoring. With a design ethos that prioritizes clarity and depth, these headphones are crafted for professionals who demand nothing but the most authentic sound.

The secret behind their remarkable performance lies in the Fostex proprietary Regular Phase (RP) Technology diaphragm, which has been meticulously refined to capture the essence of your music with unparalleled precision. Whether you're mixing in the studio or getting lost in your favorite tracks, the T20rp Mk3 offers an open soundstage that brings out the rich, deep lows and crystal-clear highs of your audio. The redesigned housing, ear pads, and head pad not only ensure optimal driver performance but also provide exceptional comfort for those long sessions. It's not just about hearing the music; it's about living it.

Key Features:

  • Fostex proprietary Regular Phase (RP) Technology diaphragm for sharp, accurate sound reproduction
  • Open-back design for an expansive soundstage with rich lows and clear highs
  • Redesigned housing, ear pads, and head pad for enhanced comfort and sound performance
  • Ideal for professional studio monitoring and audiophile leisure listening
  • Legacy of over 30 years in professional studio sound monitoring

FAQs

What is the sound signature of the Fostex T20RP mk3 Studio Headphones?

The Fostex T20RP mk3 Studio Headphones feature an open design with a deep bass sound characteristic, making them ideal for those who prefer a rich low-end response.

Are the Fostex T20RP mk3 headphones comfortable for long studio sessions?

Yes, they feature low repulsion ear pads and a head pad designed for maximum comfort, allowing for extended use during long studio sessions.

What type of driver technology does the Fostex T20RP mk3 use?

These headphones use Fostex's proprietary Regular Phase (RP) diaphragm driver, which is refined for accurate sound reproduction.

Can the Fostex T20RP mk3 headphones handle high input levels?

Yes, they have a maximum input level of 3000mW, making them suitable for a variety of professional audio applications.

What cables are included with the Fostex T20RP mk3 headphones?

The headphones come with a 3m 1/4” detachable cable and a 1.2m mini plug cable, providing flexibility for different connectivity needs.

Audio Arkitekts

Audio Arkitekts

Fostex T20RP MK3 Full Review!!

Video thumbnail for Fostex T20RP MK3 Full Review!! by Audio Arkitekts

Fostex T20RP MK3 Full Review!!

Audio Arkitekts

Audio Arkitekts

Video thumbnail for Fostex T20RP mk3 In Depth Review - The Most Affordable Planar Magnetic Headphones! by The Workout Geek

Fostex T20RP mk3 In Depth Review - The Most Affordable Planar Magnetic Headphones!

The Workout Geek

The Workout Geek

Reviews

PROS

  • Exceptional sound quality for its price, outperforming more expensive models

  • Engaging, fun sound signature with clear treble and mid-bass focus

  • Durable and well-built for long-term use

  • Great for diverse music genres, especially rock and metal

  • Easily modifiable to enhance comfort and sound

  • Offers excellent bass response without muddiness

  • Precise instrument separation, despite limited soundstage

  • Performs well with powerful amps for optimal sound

CONS

  • Stock ear pads are uncomfortable for long sessions

  • Requires a powerful amp for best performance

  • Limited soundstage compared to some competitors

  • Stock cable connectors may have contact issues

  • Not ideal for portable use due to power requirements

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Fostex T20rp Mk3 Studio Headphones (Open).

User experience

  • Older T20RP models with worn stock pads may still deliver surprising bass due to internal seal formation, indicating potential for restoration or pad replacement.

    Source
  • Some owners find T50RPs too bright and the stock pads inadequate, needing mods for better sound quality.

    Source

Value and pricing

  • The upfront cost of T20RP Mk3, ranging from $130 to $170, is a consideration for buyers prioritizing initial investment versus long-term modding potential.

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Comparisons

  • Unlike the SHP9500, the T20RP Mk3 is considered a more advanced modding platform, offering more options for enthusiasts looking to delve deeper into headphone customization.

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  • Compared to T50RPs, older T20RPs have a more open sound, but closing vents can make their sound profile similarly tight.

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  • The DT 990's analytical highs and wide soundstage make them less enjoyable for some users compared to modded T50RPs.

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Use cases and applications

  • T20RP Mk3 requires a medium-to-powerful amp for optimal performance, making it suitable for setups that include dedicated amplification.

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Mods and upgrades

  • Users find swapping earpads on the T20RP Mk3 straightforward, with a wide price range for pads, allowing for personalized comfort and sound.

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  • Taping half the vents on T20RPs mimics T50 sound characteristics, tightening mids and highs while relaxing bass.

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  • Shure SR840 pads improve bass by better sealing, while felt dampens high frequencies and clay adds mass for sound reflection control.

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  • A leather suspension strap significantly increases comfort, easily DIY with longer screws and custom materials.

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  • Brainwavz XL round pads fit well on pre-mk3 Fostex RPs, providing a comfortable seal without stretching, enhancing sound and comfort.

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  • Cotton wool in the cups of T50RPs can dampen reflections, complementing other modding efforts.

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  • Protein leather ZMF knockoff pads, found on Amazon for $25, enhance bass and make T50RPs semi-easy to drive.

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Features and functionality

  • The T20RP Mk3 has easily accessible bass ports that can be modded to adjust bass levels, offering flexibility for sound customization without complex modifications.

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  • The older Fostex T20RP drivers have a metal frame diaphragm, contributing to less efficiency but offering a more simplistic, mod-friendly design.

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  • Fostex T20RPs need over a watt per channel for optimal performance, especially after modifications.

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Build quality

  • Older T20RP models feature round cups and baffles with only three screws, differing from newer oval designs with four screws, affecting compatibility with certain mods.

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Setup and maintenance

  • Most amps are sufficient for driving T50RPs, but running them from a phone isn't ideal.

    Source

Critic Reviews

Comparison Review: Fostex T50/T40/T20rp MK3 - Sound Perfection Reviews

soundperfectionreviews.com

Fostex T20RP Mk3 headphones are praised for their robust build and modding potential, offering a warm, full sound with detailed mids. However, comfort is a concern due to flat earpads, and they demand a powerful amp for optimal performance. While isolation is minimal, making them unsuitable for quiet environments, they excel in delivering a smooth, articulate audio experience at a budget-friendly price, especially appealing for DIY enthusiasts.

positive

Fostex T-series MkIII

soundonsound.com

Fostex's T20RP Mk3 Studio Headphones offer excellent value with sonic consistency and smooth, balanced sound, making them a great choice for studio engineers. However, comfort is an issue for extended use, and they require a powerful amp to reach high volumes. Despite lacking in deep bass compared to pricier models, they present a compelling alternative in the planar magnetic realm at an accessible price point.

positive

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