64 Audio NIO 9 Driver Hybrid IEM

Key Features:
  • 9 driver hybrid design
  • Smooth sound with rich bass
  • Apex pressure relief system
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Nio, meaning “nine” in Swedish, is the latest universal earphone from 64 Audio. With a hybrid 9 driver design refined from the popular N8 custom, the Nio brings 64 Audio’s impressive innovations to a new price point. 1 Dynamic driver and 8 balanced armature drivers per ear deliver precise high frequency sound along with pleasing bass kick.

The Nio features a new Apex Module, called the “MX” module, which allows you to achieve a more open sound and a tuning more suited to reference listening. Along with the other Apex modules included with the Nio, this gives you the choice between a thicker, warmer response or a more reference tuning. 64’s Linear Impedance Design ensures a consistent experience across different sources, and the Nio features a new leather carrying case and a stunning Abalone shell faceplate.


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What's in the box

  • Nio Universal In-Ear Monitors
  • Premium Leather Case
  • Dehumidifier
  • TrueFidelity Eartips (S,M,L)
  • Silicone Eartips (S,M,L)
  • 48" Detachable Premium Cable
  • m20 apex Modules
  • m15 apex Modules
  • mX apex Modules
  • Round Sticker


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
Sensitivity 105 dB/mW
Impedance 6Ω @ 1kHz
Crossover Integrated 4-way passive crossover
Isolation -15dB w/ m15 module, -20dB w/ m20 module, -10db w/ mX module

Audio Performance

Drivers9 Drivers
Sound Signature
Smooth, clear sound with rich bass


Low Mid

Mid High


Resolution (8)

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With nearly two decades experience as a sound engineer, Vitaliy Belonozhko founded 64 Audio when he discovered the advantages of IEMs over traditional floor wedges. With unique technologies such as the Tia tubeless driver design and the Apex pressure relief system, 64 Audio consistently aims for high performance, balanced sound with practical, ergonomic fit.

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64 Audio