Westone Audio EAS20 Earphones


Westone Audio EAS20 Elite Ambient Series Custom Fit Earphones.
Custom-molded 2-driver Earphones with Flex Canal Tips, Cold-pour Acrylic Housings, Balanced-armature Drivers, Deep Open Bore Design, Customizable Attenuation Filters, and Field-replaceable EPIC Cable.

Designed for performing musician’s but great for personal listening, the custom-fit EAS 20 uses dual balanced-armature drivers to create an unbelievably clear sound that will satisfy the monitor needs of any music lover, while still allowing users to hear a set amount of outside ambient noise from their surrounding environment.


Westone EAS20 Elite Ambient Series Custom Fit EarphonesHearing is everything to a musician. Until now, musicians have had to choose between enjoying a dedicated in-ear monitor mix, or an ambient experience. With Westone Audio’s exclusive ambient technology, you can hear from the audience, fellow performers and the stage, but still hear the incredible audio clarity, frequency response and power that only a Westone Audio custom-fit in-ear monitor can provide. The Westone Audio EAS20 In-Ear Monitor has the range and output for any stage condition, featuring a dual balanced-armature driver design that delivers a robust low end and crystal clear highs. Let the world in, and set the stage for the best performance of your life.

  • Westone Audio Custom-Fit Technology
    Fully custom earpieces are cast, sculpted, and polished by hand from actual impressions of your ears, resulting in the best fit and acoustic seal possible.
  • Replaceable Filter Technology
    Westone Audio puts you in control of your ambient experience. With replaceable filters, you can pick your level of attenuation with 10dB. 16dB, or 24dB filters as well as the included 27dB solid plug.
  • Balanced Armature
    Westone Audio’s proprietary balanced-armature drivers provide enhanced sonic detail and frequency range that extends well beyond typical in-ear solutions.
  • Flex Canal
    This body temperature reactive material provides increased comfort and acoustic seal.
  • Cold Pour Acrylic
    Earpiece shells are cold-poured in acrylic for a thicker, more robust acoustic enclosure. This process increases durability and provides a more luxurious appearance.
  • Deep Open Bore
    The Deep Open Bore design provides a smoother transition between the monitor mix and the ambient sound and also increases comfort and acoustic seal.
  • Precise Acoustic Symmetry
    Left and right earpiece responses are matched to an extraordinarily tight +/-2 dB tolerance.
  • Replaceable MMCX Audio™ Cable
    Durable, supple, light-weight cable features low resistance and minimal cable noise.
  • Designed and Hand-crafted
    All of Westone Audio’s products are meticulously assembled by a staff of dedicated artisans and lab technicians.

The benefits of Westone EAS Monitors

  • Westone Audio is the only company with a passive-ambient technology in their in-ear monitors which allows outside sound to filter in the monitors
  • Traditional monitors offer 40dB of sound isolation which is good but can cut user off from stage and audience feedback/sound
  • Provides a more natural feel by using the filter as a natural diaphragm which allows user to hear the artist the audience and bandmates in a more natural setting- Without this the musician is using a stage with microphones that can create artificial sound
  • Four different filters available (10dB, 15dB, 20dB, and 25dB) appropriate for each setting (small coffee house, stadium, etc.)

Tags: EAS20 Earphones, Westone Audio Australia, custom-fit EAS 20, EAS20 Elite Ambient Series, Custom Fit Earphones, Westone EAS20 Elite

Additional information

​Mould Type

​Custom Hand-Pour, Custom 3-D


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Westone Audio EAS20 Earphones