64 Audio Launches Limited Edition Fourté Noir Universal In-Ear Monitor

Based upon the foundation of 64 Audio’s acclaimed and award-winning audiophile-grade tia Fourté, the Fourté Noir includes the industry’s first completely tubeless technology taken to the next level with numerous upgrades

This article is Authorized by the In-Ear Monitor International Trade Organziation

This is a new announcement from one of our founding members. Our members are always pushing the boundaries of what is sonically possible for in-ear monitoring.


October 9, 2019

64 Audio , a leader in custom and universal fit in-ear monitors, is proud to announce the launch of the all new limited edition Fourté Noir. 

Based upon the foundation of the acclaimed audiophile-grade tia Fourté, the Fourté Noir, with an MSRP of $3,799 USD, boasts numerous upgrades to its predecessor and is now available while supplies last.

“Our award-winning 64 Audio tia Fourté is a first-of-its-kind universal-fit earphone that takes full advantage of the patent pending tia™ system and everything we’ve learned up to this point in designing world-class in-ear monitors,” said Vitaliy Belonozhko, 64 Audio founder and chief sound designer. “It was born of a desire to redefine one’s experience with music. This pursuit led to a reinvention of how we build in-ear monitors with an industry first, completely tubeless technology. To celebrate this momentous innovation, we’ve refined our award-winning IEM with the limited edition Fourté Noir.” 

The Fourté Noir does not replace the tia Fourté, but instead gives customers another choice in an ultra high-end audiophile grade IEM with additional technologies and upgrades. It features an even warmer bass response and smoother top end than its predecessor, raising the bar yet again. An all-black, aluminum shell gives the Fourté Noir an elegant new look, and real copper-patinated faceplates makes each set as unique as a fingerprint. 

“The Fourté Noir’s redefined dynamic low driver tuning results in a warmer and richer low end frequency response,” Belonozhko explained. “Mundorf™ SUPREME silver solder allows for great conduction resulting in better transient control. And our eight-conductor SPC premium cable provides lower resistance, yielding a smoother high frequency response. Also, a balanced 2.5mm connector and 3.5mm adapter allows for greater compatibility with high-end audio devices.” 

The Fourté Noir also features the innovative apex™ technology. Apex (air pressure exchange) relieves air pressure caused by miniature speakers in a sealed ear canal, giving you a superior listening experience that simply cannot be achieved by traditional IEMs. Finally, the tia™ tubeless in-ear audio incorporated into the Fourté Noir is a completely new design comprised of three major elements: open balanced armature tia drivers, the tia single-bore, and tia acoustic chambers. 

“By eliminating tubes and sound-altering dampers, the sound produced by the tia drivers is able to disperse freely and effortlessly, traveling to the ear in a more effective way,” Belonozhko concluded. “Sound in this manner yields an incredibly smooth and musical frequency response with a larger depth and sound stage than conventional in-ear monitors.”


Driver Type/Count 3 precision BA drivers, 1 dynamic driver

Driver Configuration1 tia high, 1 high-mid, 1 tia mid, 1 dynamic low

Frequency Response 5Hz – 22KHz

Sensitivity114db @1kHZ @1mw

Impedance10 Ω @ 1kHz

CrossoverIntegrated 4-way passive crossover

Isolation-20dB internal apex technology


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