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Following from the sucess of the Fourté, Trió is a hybrid, three driver fully-tubeless Universal In-Ear Monitor from 64Audio. This is an IEM designed to be the sweet spot between reference-level clarity expected by the most discerning audiophiles and a smooth sound signature perfect for those extended listening sessions.


Built in the signature 64Audio ergonomic style, the Trió shell is machined out of solid aluminum with precise, and accurate internal chambers milled within to house the tubeless drivers and shape their sound. In a timeless  Its understated monochromatic palette is accented off by the elegant brushed aluminum faceplates.


Fully embracing and taking advantage of 64Audio's patented technology, Trió features TIA technology, integrated APEX pressure relief, and their LID circuitry.


The heart of the precise sound delivery is the accuracy and detail achieved through high build quality. Trió also features the Frequency eXtension Chamber (FXC) for superior mid-range control. Within the shell, 64Audio's engineers are able to precisely control the air volume of the back-vented dynamic driver to deliver perfectly placed mid frequencies, giving vocals and instruments a remarkably natural sound.


The Trio is available to Demo here at DCA - get in touch to see how they sound for yourself!



Main Features:

  • A hybrid design using 64Audio's patented technology.
  • Fully utilises all elements of the TIA infrastructure to reduce unwanted resonance and distortion for a transparent and lifelike sound signature. This method allows the three drivers to radiate freely into the TIA bore with no obstructions.
  • Air Pressure Exchange (Apex) is a patented vent that releases air pressure in a sealed ear canal enabling music enthusiasts to listen more comfortably for longer and a much more realistic soundstage.
  • Apex is integrated in Trió all the way down to the way the shell is milled, offering similar pressure release and isolation to 64Audio's m15 module.



  • Trio Universal In-Ear Monitors
  • 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
  • Cleaning Tool
  • Cable Clip
  • Round Sticker

64 Audio Trio

    • Transducer Type: 3 precision drivers in a hybrid design
    • Transducer Configuration: 1 dynamic Mid/Low, 1 mid/high,  1 TIA high
    • Frequency Response: 5Hz – 22kHz
    • Sensitivity: 104dB/mW @ 1kHz @ 1mW (84mV)
    • Impedance: 5.5+0.5/-1.5 Ω Impedance from 10Hz - 20kHz
    • Crossover: Integrated 3-way passive crossover
    • Isolation: -15dB Isolation Internal Apex Technology
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