64 Audio A3e Custom In-ear Monitors

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Our versatile, three-driver custom in-ear monitor provides impressive clarity and warmth for any instrument or genre. The A3e is ideal for vocalists, drummers, or any single-instrumentalists looking for a professional IEM to use onstage. This is a great option for artists seeking a detailed soundstage, neutral tuning, and a transparent and musical sound.



Exclusive technologies that challenge traditional in-ear monitor designs to give you the absolute best listening experience

A3e features the following unique technology:

Only from 64 Audio, apex alleviates listener fatigue by releasing air pressure sealed in the ear canal. This venting enables musicians and music enthusiasts to listen more comfortably for longer.

Enables a consistent, reliable sound regardless of audio source.

Preserves the detail of your ear impressions using a new process of digital rendering and 3D printing for the most comfortable custom in-ear monitors available.



Driver Type/Count

Three precision balanced armature drivers

Driver Configuration

1 low, 1 mid, 1 high

Frequency Response

20Hz – 20kHz


109 dB/mW


11Ω @ 1kHz


Integrated 3-way passive crossover


-20dB with m20 apex module


  • A3e Custom In-Ear Monitors
  • 64 Audio Personalized Protective Case
  • Dehumidifier
  • Cleaning Tool
  • Shirt Clip
  • 48" or 64" Detachable Professional Cable
  • m20 apex Modules
  • Round Sticker
  • Product Manual