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Welcome to 64 Audio’s flagship reference In Ear Monitor. Refined, Detailed & Immersive. Developed alongside the Fourté, immerse yourself and hear every detail with unmatched clarity and headroom with a phenomenal 18 drivers per ear, pushing the envelope of what is possible in a universal IEM.


The extremely accurate response of U18t makes it perfect for critical audiophile listeners as well as mixing and mastering engineers with incredible detail, extension and clarity across all frequencies, delivering an expressive and refined mid range coupled with powerful low-end and sub bass. Filled not only with drivers, but with technology, the A18t boasts APEX, TIA and LID technologies for a wide and balanced soundstage with reduced fatigue over long listening periods. If you are interested in critical listening, mixing or even mastering uning in ears, the U18t is unparalleled and is likely the ultimate IEM for you.


Like all 64Audio IEMs, the U18t features excellent build quality with each ergonomic shell being machined out of solid aluminum, anodized red, and finished with an elegant copper-patinated inlay on the faceplates.


We really like these at DCA...

At DCA we quickly fell in love with the sheer detail and clarity we found in even basic music, let alone high quality files - this is our 64Audio daily drive for listening to music, mixing and also on stage in our A18ts which you'll see on the website as our Walnut burl and custom 'DCA' faceplates. 


If you want to experience it for yourself and how it stacks up against the rest of the 64Audio range including the Volür, Fourté and U18s, please get in touch for a Demo!


Main Features:

  • The flagship reference monitor for critical listening.
  • A whopping 18 drivers per ear IEM set with 4 way crossover.
  • Packed with 64 Audio's patented tech - TIA, APEX and LID.
  • Sculpt your sound using different APEX modules.
  • Available as a custom shell with free 3D Ear impressions exclusivley at DCA.



  • 64 Audio Premium Leather Case
  • TrueFidelity Foam Ear Tips (S,M,L)
  • SpinFit Silicone Ear Tips (S,M,L)
  • Silicone Ear Tips (S,M,L)
  • 3.5mm Black Premium Cable
  • Apex Modules: m20, m15, mX
  • Cleaning Tool
  • Cable Clip
  • Round Sticker

64 Audio U18t

    • Transducer Type: 18 precision Balanced Armature drivers
    • Transducer Configuration: 8 Low, 8 BA mids, 1 BA high-mid, 1 TIA high
    • Frequency Response: 10Hz – 20kHz
    • Sensitivity: 111dB/mW @ 1kHz
    • Impedance: 9 Ω @ 1kHz
    • Crossover: Integrated 4-way passive crossover
    • Isolation: between 20dB and 10dB with corresponding APEX modules.
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