Fostex T20RP Headphones MK3 [2023 Review]

If you are looking for a pair of reliable headphones, you are at the right place. In this Fostex T20RP Headphones MK3 review, we will be exploring the features of these affordable headphones. It caused quite a rumble in the market, so let’s see if it is worth the hype or not.

Fostex T20RP Headphones MK3 is a good device with comfortable ear and head pads with low repulsion. It comes with a 3m 1/4-inch plug detachable cable and a 1.2m mini-plug cable for portable audio use so you can connect to many devices with ease.

If you are interested in this model, keep reading our Fostex T20RP Headphones MK3 review for more information below. We will be discussing its features, pros, and cons for the ones who are curious about this headphone.

Fostex T20RP Headphones MK3 Review

  • Affordable planar magnetic headphones
  • Great imaging
  • Spectacular clarity
  • Punchy low-end sound
  • Distinctive looks
  • Comes with 2 detachable locking cables
  • Gets uncomfy after long use

About: Fostex T20RP Headphones MK3 has a Regular Phase diaphragm driver with copper foil etched polyimide film and a strong neodymium magnet developed by the company. It has an amazing sound quality with heavy bass so you can enjoy most music types.

Overall Features

The Fostex T20RP MK3 Headphones are a pair of lightweight over-ear headphones with a sophisticated performance and a fashionable style. The T20RP MK3 Headphones feature a powerful Fostex exclusive standard phase diaphragm driver for clearer audio reproduction, making them ideal for deep bass sound.

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The Fostex T20RP MK3 headphones are one of the best headphones which have been used as reliable monitor headphones by professional recording studios all over the world for more than 30 years. You can trust the quality of this equipment for sure.

Fostex’s patented Regular Phase (RP) Technology diaphragm is elegantly optimized to achieve clearer audio performance for more precise monitoring in the planar-magnetic driver unit. The housing, ear pads, and head pad have all been updated to maximize the RP driver’s output while also ensuring the listener’s convenience.


The packaging of Fostex T20RP Headphones is plain. It comes in a card box with a photo on the front and information and specifications on the back. If you are expecting some fancy carrying case or box, do not; because it arrives in the simplest way possible.

There is nothing unique about the packaging according to our Fostex T20RP Headphones MK3 review, but it does a good job keeping the headphones safe on the road.

Build Quality

The build quality of Fostex T20RP Headphones is excellent. Sturdy metal sliders, a metal headband, and the use of high-quality plastics are used for the making of this product and we can say that you can use this for a very long time.

The earpads are soft and very flat as we have to say in our Fostex T20RP Headphones MK3 review. They also have a slight opening for your ears. They have a locking removable cable system that functions well and it looks very reliable for long term use. We have nothing to criticize about the build quality of Fostex T20RP Headphones.

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Sound Quality

The sound of Fostex headphones is clear, absolute, and very descriptive. The mids are extremely detailed and well represented. This is a well-rounded, all-around headphone with incredibly quick and sensitive sound.

If you are searching for Orthodynamic headphones with great sound, this is a great model to get because they give you a taste of what they sound like without forcing you to spend lots of money.

Fostex T20RP Headphones MK3 [2023 Review]

What comes in the box?

Just the headphones and two cables are included in the package, one long black 3m cable with a 6.3mm jack and another short orange 1.2m cable with a 3.5mm jack for compact use. A carry bag would have been nice, we cannot complain since this is an affordable piece.

Sound Isolation

This headphone does not do a good job of sound isolation according to our Fostex T20RP Headphones MK3 review. It isolates well enough to block out mild noise, but if you need some serious isolation, we cannot really recommend this headphone.

Since this one has a semi-open back, it leaks more than the other models and is not appropriate for use in very quiet areas where you do not want to annoy anyone.


The comfort level of the earpads is okay and the clamping power is also sufficient. However, it does not change the fact that the pads are very thin. If you do not like them, you are always welcome to change them and we highly recommend doing so. But be aware that changing anything on these headphones might also change the sound.

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We can say in our Fostex T20RP Headphones MK3 review that the earpad quality is good for brief listening sessions, but the headband padding is poor. It might cause pain around the head and ears after hours of use.

Can be used with amplifiers

To get the most out of these headphones, we highly recommend using a strong amplifier. If you are planning to use them with a portable device, there might be distorted sound as result. For that reason, we recommend using a good amp. Even more, you can switch them up to high levels without distortion if you have a good amp.

Conclusion: Fostex T20RP Headphones MK3 [2023 Review]

The Fostex headphones are an appealing alternative to traditional dynamic headphone design, providing most of the attributes that studio developers demand at a very appealing price.

The sound quality of these headphones is amazing. Lows are vocal and punchy, with plenty of extensions. Mid notes are simple and informative, with a sharp and crisp finish. However, according to our Fostex T20RP Headphones MK3 review, the presence of the highs is a little lacking.

If you are looking for a broader, smoother sound with strong control and expressiveness, you should look no more. This is good equipment with a more mid-centric sound characteristic with enough definition. We hope you liked our Fostex T20RP Headphones MK3 review and it was helpful.

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