Unique Melody MEST Review

Unique Melody MEST

Today we have the UM MEST review, a unit which is selling for between $1,259 and $1.899 USD.




Disclaimer: The Unique Melody MEST custom monitor was sent to us free of charge in exchange for this review. UM is not related to Headfonia in any way.

Unique Melody

According to Unique Melody, they are one of the first and longest-established manufacturer of custom in-ear monitors in China. Since 2007, with over 10 years of research and experience in the industry, they’ve developed a wide range of products from multi-BA, hybrid dynamic and BA, to more recent units containing Bluetooth, planar magnetic, piezoelectric, and bone conducting technologies that also contain various patents.

Fast forward to 2020 and Unique Melody is everywhere, they are more structured, have a clear product line up, better communication, semi up-to-date website and Facebook Page and especially: good representation. MusicTeck in the US really have made it easy for everyone to get familiar with the brand and I want to praise them for the work they’ve done.

It’s not always easy finding the right Unique Melody website via Google so here it is: https://www.uniquemelody.co/. If you use Facebook’s search module you’ll also find several FB Pages about Unique Melody, but the correct and official page can be found here: https://www.facebook.com/UniqueMelodyIEM/.

It’s also not the first time we’ve reviewed Unique Melody monitors and we have full articles about the Maverick, Martian, Maestro, ME.1, Mason V3 and Mason V3+. This time we’re looking at the newest UM creation, the MEST.

Unique Melody MEST

Unique Melody MEST


We have already previewed the MEST on Headfonia, you can find that preview here. If you have read the preview already you will notice that some parts have already been published.

MEST has a dedicated web page but it’s in Chinese, so we recommend to check out MusicTeck’s pages here: https://shop.musicteck.com/collections/um-unique-melody/products/um-custom-mest?variant=32093352722494 and here https://shop.musicteck.com/collections/um-unique-melody/products/um-universal-mest?variant=31563592826942

The MEST , as you can see, comes in both a universal as well as a custom version.

Unique Melody MEST

Unique Melody MEST

Key Features of MEST:

The MEST is an 8-driver hybrid IEM with a 5-way crossover(!) and a very special one at that. It doesn’t only combine Balanced Armature drivers with a Dynamic Driver, but also with EST and Bone Conduction drivers. How awesome is that! The full driver configuration is as follows: 1 dynamic driver for the lows, 2 Balanced Armatures for the high mids, 2 BA for the highs, 2 Electrostat drivers for the ultra highs and the bone conduction driver.

We’ve seen many IEMs in the meantime that features EST drivers like the Pola39 and the Elysium just to name two, but the super interesting thing for me here is the use of bone conduction. “But how does that work?” I hear you ask. Let’s quickly explain.

The face plates of the headphones are specially designed according to the structure of the bone conduction drivers. Bone conduction driver delivers signals by vibrating the face plate. Then the signals are passed to the carbon fiber shell and finally delivered to your inner ear.

The bone conduction drivers are made by metal vibration pieces that are covered by piezoelectric ceramics. The ceramic layers will bend the metal vibration pieces to make micro-vibrations according to the changes of input alternating voltage.

Technical specifications

Frequency response range: 20Hz-55KHz
Sensitivity: @1KHz 118dB
Impedance: 14Ω
Driver Count: 8
Crossover: 5-way crossover system
Driver Configuration: 1Dynamic low+2BA Mid high+2BA High+2EST Ultra high+1Bone Conduction


In contrary to a normal review I will use the same breakdown as I always do for my Custom Inear reviews:

  1. Build quality & Comfort
  2. Personalization
  3. Cable
  4. Price & Accessories
  5. Customer Service
  6. Sound
  7. Competitors/Comparisons
  8. Driveability & Sources

The article continues on the second page. Use the jumps below or simply click here.

4.4/5 - (127 votes)

Lieven is living in Europe and he's the leader of the gang. He's running Headfonia as a side project next to his full time day job in Digital Marketing & Consultancy. He's a big fan of tube amps and custom inear monitors and has published hundreds of product reviews over the years.


  • Reply July 7, 2020


    Thanks for the great full length review! This will be my first UM monitor.

    • Reply July 7, 2020


      I hope you’ll love it as much as you. Let us know how it turns out?

  • Reply July 7, 2020


    I first heard then had to have the mest after CsmJam back in February (seem like a hundred years ago now). I absolutely love them!

    • Reply July 8, 2020


      They are something else indeed

  • Reply July 8, 2020


    Would we be seeing a review of the mini version soon?

    • Reply July 8, 2020


      That’s up to UM, I checked their interest

  • Reply July 10, 2020

    Steven Zore

    “The (lower) mids section – delivered by a double BA-driver –”

    Not to nitpick, but the BA drivers are mid high, and high…you say the BA is delivering the “lower mids”….But is not the dynamic driver covering that?

    In any event, I have the MEST and they are sublime…I paired it with the Leonidas II cable and my A&K SR-25 DAP…

    Classical symphonic works shine with this: The MEST is technical and analytical, yet musical at the same time. Lovely!

    • Reply July 15, 2020


      Hi Steve, Thanks for sharing your feedback. Do you think A&K SR 25 pair well with the MEST for pop and Jazz? I love a musical IEM with nice solid bass. I wouldn’t consider myself a bass head

  • Reply July 17, 2020

    Steven Zore

    Yes, the sr-25 is a great player, I use it for all genres, especially pop, jazz, classical, all genres shine. As good as it is tho, I think the Leonidas II and the MEST are not showing there full potential with the sr-25…I am thinking of upgrading, to what tho, I am not sure. But my kit as it stands now sounds sublime!

    • Reply July 22, 2020


      Hi Steve, do you also use CFA Solaris? It would be great if you can describe the difference between Solaris vs MEST? I have a AK70 MK11 and think about getting the SR25. Thank you!

  • Reply August 24, 2020

    Majid Soureh

    Did you review the international verision or JPN verision?? – your images and nozzel are JPN versions. They are tuned very differently. – please clarify.

    • Reply August 25, 2020


      It’s a 3-bore custom IEM, how can you spot it? The label on the box only says MEST, so I would assume it’s the international version, as we’re an international website

      • Reply September 7, 2020


        On the universals, you can see the difference on the nozzles (smooth vs metal lip) CIEMS don’t require tips as the nozzle is molded (or printed) to fit perfectly in Your ear canal without a tip….

  • Reply December 11, 2020

    Hendra Li

    I wonder which Spinfit will fit onto the Mest?

  • Reply January 19, 2021

    deniz eylül parlak

    hey lieven, can u compare it with beyerdynamic xelento

  • Reply February 25, 2021


    If say Fir M4 and this is the same price.. which will you choose??

    • Reply February 25, 2021


      MEST, it’s in in my all-time top 3

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