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    64 Audio A18s Eighteen Drivers Custom IEM Earphones

    • Eighteen driver custom-fit in-ear monitors with broad soundstage
    • New drivers and reworked crossover design provides richer and clearer sound
    • 1 tia High, 1 High-Mid, 8 Mid, 8 Low drivers with 4-way crossover
    • Modular apex technology relieves air pressure providing superior sound
    • Fully customizable and custom-built from unique ear impressions

    • 64 Audio A18s

      Custom in-ear monitors are made to order and custom crafted for every individual user making the ordering process different from standard earphones. It only takes a few steps to get your personal custom moulded in-ear monitors made. Click the link to learn more about the Ordering Process, or contact the Hifiheadphones support team.

      Designed for professionals on stage and in the studio, the 64 Audio A18s custom earphones are the final authority on flagship in-ear monitors that boast elite performance. Based on the world’s first 18-driver earphone, it provides the clarity and precision necessary for sound engineering with the warmth, power, and headroom demanded by musicians taking the stage. Now including LID technology the A18s is the most capable and versatile in-ear monitor ever created by 64 Audio.

      64 Audio took their flagship 18 driver in-ear monitor A18t and added a new driver and crossover to sound bigger, richer, and clearer at high volumes. With a more sophisticated electronic crossover network, the A18s has the headroom to achieve optimal clarity without distortion. Musicians will be pleased with its warm, detailed, and spacious sound that keeps up with the most demanding performance. The punch, power, and precision of the A18s makes it the ultimate in-ear monitor for every kind of artist, instrument, or genre of music.

      A18s comes equipped with LID, an exclusive 64 Audio technology that provides a consistent sound signature no matter what source you’re plugged into. This consistency gives you the advantage of picking up right where you left off without redoing changes or course-correcting your workflow. Whether you’re mixing in the studio or reviewing tracks on a laptop before a gig, the A18s remains reliable and true to its sound signature from source to source.

      Elite audio performance.


      64 Audio A18s


      Custom Ear Impressions
      A great-fitting pair of custom in-ear monitors begins with a great pair of ear impressions, which are taken by a hearing professional called an audiologist. In the ordering process we will put you in touch with with your nearest UK audiologist to get the process started.

      Custom Design Options
      All 64 Audio custom IEMs are hand-built to order and fully customisable. Bespoke options include faceplate colour and artwork, cable length and colour, Apex modules, storage case customisation, and more - the choices are endless. 

      Custom Monitor Ordering Process
      It only takes a few steps to get your personal custom moulded in-ear monitors made. The estimated built time for custom moulds is around 3 weeks after the ear impressions are received by 64 Audio. Click the link to get the Ordering Process started for your personal custom in ear monitors.



      • Transducer Type: Eighteen precision balanced armature drivers
      • Transducer Configuration: 1 tia high, 1 high-mid, 8 mid, 8 low
      • Frequency Response: 10Hz - 20kHz
      • Sensitivity: 106 dB/mW @ 1kHz
      • Impedance: 8Ω @ 1kHz
      • Crossover: Integrated 4-way passive crossover
      • Isolation: -20dB w/ m20 module, -15dB w/ m15 module



      • Eighteen driver custom-fit in-ear monitors with warm, detailed, and spacious sound
      • New drivers and reworked crossover design provides richer and clearer sound
      • Clarity and precision for sound engineering, warmth and power for stage monitoring
      • 1 tia High, 1 High-Mid, 8 Mid, 8 Low drivers with 4-way crossover
      • Tia Single Bore eliminates unwanted tube resonance
      • Internal modular apex technology eliminates pneumatic pressure
      • LID Linear Impedance Design retains intended frequency response
      • Fully customizable and custom-built from unique ear impressions
      • Warranty: 2-year parts and labour



      • 64 Audio A18s Custom IEM Earphones
      • 64 Audio personalised protective case
      • Dehumidifier
      • Cleaning tool
      • Shirt clip
      • 1.2m or 1.6m detachable professional cable
      • m20 or m15 apex Modules
      • Round sticker


      1. Brand64 Audio
      2. Connectivity TechnologyWired
      3. Detachable CableYes
      4. Driver TypeBalanced Armature
      5. Frequency Response10Hz - 20kHz
      6. Headphones TechnologyBalanced Armature
      7. Headphones TypeHeadphones - binaural
      8. Headphone Fit TypeCustom Mould
      9. Impedance
      10. Manufacturer Warranty2 Years
      11. Number of driversEighteen Drivers
      12. Part NumberA18s
      13. Product TypeEarphones
      14. Recommended useDigital audio player;DJ;Hi-Fi;Portable audio system;Studio
      15. Feature keywordComfortable;Ear Canal;Hi-Fi;IEM;In Ear;Monitor;Noise Isolation;Portable;Professional;Studio
      16. Sensitivity106dB
      17. Sound Output ModeStereo
      18. Headphone ApplicationDJ;On Stage;Studio;Travel;TV;Work
      19. Headphones Form FactorCustom Mould
      20. Included AccessoriesProtective case, Dehumidifier, Cleaning tool, Shirt clip, Professional cable, apex Modules, Sticker
      21. Sound Output ModeStereo