64 Audio Trió™ Hybrid Universal-Fit In-ear Monitors

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The perfect in-ear monitor for listeners looking for the sweet spot between reference-level clarity and a smooth sound signature for extended listening. The Trió is a great earphone for audiophiles seeking a clear, laid back, 3D sound in any genre.

Trió features our complete, three-part tia™ system housed in an ergonomic shell, machined from a solid piece of aluminum and finished with elegant, brushed aluminum faceplates.



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

Trió features the following unique technology:

A tubeless design that reduces resonance for a transparent and lifelike sound signature.

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.



Driver Type/Count

8 precision BA drivers and 1 dynamic driver

Driver Configuration

1 tia high, 1 hi-mid, 6 mid, 1 DD low

Frequency Response

10Hz – 20kHz


105 dB/mW


6Ω @ 1kHz


Integrated 4-way passive crossover


-15dB w/ m15 module, -20dB w/ m20 module



  • N8 Custom In-Ear Monitors
  • 64 Audio Personalized Protective Case
  • Dehumidifier
  • Cleaning Tool
  • Shirt Clip
  • 48" or 64" Detachable Professional Cable
  • m20 apex Modules
  • m15 apex Modules
  • Round Sticker
  • Product Manual