Dekoni Blue by Fostex Planar-Magnetic Headphones

Dekoni Blue by Fostex Planar-Magnetic Headphones

Complete Setup:
Massdrop x Sennheiser HD 6XX Headphones
ADV. Headphone Hanger
Dekoni Audio Headphone Savior Carry Case
1k Sold
Ready to Ship

Fostex Drivers, Dekoni Pads

This new variant of the renowned T50RP MKIII is a collaboration between Fostex and Dekoni, a company well loved on Drop for its excellent line of headphone pads. Done in a distinctive light blue, these headphones feature Fostex’s proprietary planar-magnetic drivers and come installed with Dekoni’s Elite Hybrid ear pads. These pads improve upon the original model’s sound, making it less fatiguing and smoother all around with an extended bass response. The sheepskin outer ring gives you all the isolation you need, while the velour face has a soft, luxurious feel. The pads use slow-rebound, high-density memory foam.

Note: Unlike previous versions of the Dekoni Blue, the headphone no longer ships with an extra pair of pads.

Dekoni Blue by Fostex Planar-Magnetic Headphones
Dekoni Blue by Fostex Planar-Magnetic Headphones
Dekoni Blue by Fostex Planar-Magnetic Headphones

The Reviews Are In

Head-Fi user bowei006 says, “I'm also a fan of the sound. It has less surging energy as the stock unit has which made it 'hot' and 'bright' after a while and sounds much more 'tamed.’ Mid-range background instrumentals were stronger and much too apparent/forward on the stock units and that has been 'rectified' as well as the vocals taking a higher priority this time around. The bass has also been brought to life in this variant as well.”

Dekoni Blue by Fostex Planar-Magnetic Headphones

EposVox Review


  • Dekoni Blue is a partnership with Fostex
  • Semi-open design based on T50RP MKIII
  • Only Fostex-sanctioned T50RP MKIII mod available
  • Limited-edition blue ear cups and flat black slider rails
  • Fostex’s proprietary Regular Phase (RP) planar-magnetic driver (used in T50RP MKIII)
  • Dekoni’s asymmetrical Elite Hybrid ear pads with sheepskin, velour, and memory foam 
  • Detachable 6.6 ft (2 m) cable with ¼ in (6.35 mm) plug
  • Padded headband for extended comfort
  • Tuned and adjusted by Dekoni founder and audio engineer Tal Kocen


  • ¼ in (6.35 mm) to ⅛ in (3.5 mm) adapter


Estimated ship date is May 25, 2022 PT.

Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout, after which all sales final.

Top Customer Questions21
Why don't you include the extra pair of pads, and why haven't you removed the picture of them if we won't be getting them?
Feb 11, 2021
Top Answer
Cause they are too greedy to do so?Read More
May 9, 2021
See 2 More
Any way to add mic to it? Not sure what would fit this headset...
Mar 3, 2021
Top Answer
Your best bet for adding a mic is going to be using an antlion modmic or a v-moda boompro. I've used the v-moda boompro with my TX-0 (T50RP) headphones and it works fine. The only issue with the...Read More
May 4, 2021
How do these compare to the stock t50rp and t60rp?
Jul 6, 2021
Top Answer
There's a video on Z Reviews where he compares them to t60rp. It's more subjective though, he doesn't really use any graphs or anything just gives an opinion on the sound and how it compares...Read More
Jul 7, 2021
See 3 More
Showing 3 of 21 questions
View All Questions
User Photos48
Blue Goodness with Periapt Custom Cable
Added balanced out and a simple to install head strap.
Beautiful retro design
Nice headphone with Dekoni earpads!
D Blue 01
Dekoni Blue
How real men deal with a locking cable lmao
Pic of Cans
Customer Reviews0
All of our reviews are from verified customers.
Showing 0 of 117 reviews
Recent Activity
Placed an order
Placed an order
Placed an order