Quad driver hybrid configuration (dynamic, balanced armature, TIA) delivers balanced, immersive sound with deep sub-bass and clear mids
Apex modules (MX, M15, M20) allow for customizable isolation and imaging tailored to different music genres and listening preferences
Patented TIA lid and silver-plated copper cable ensure transparent, lifelike audio and minimal signal loss
Ergonomic anodized aluminum shell with unique faceplate pattern offers a premium look and comfortable fit
Includes premium ear tips, cable, and case for a complete, ready-to-use experience
Summarized by Shop
A quad driver hybrid UIEM featuring ground-breaking patented technologies originally developed for our flagship products in order to bring a wider audience closer to their music. U4s explores a bold new color aesthetic for 64 Audio. The Slate Blue shell color was influenced by some of the world’s most beautiful blue- dial timepieces while
Transducer Type
2 balanced armature drivers, 1 TIA driver, 1 dynamic driver
Frequency Response
10 Hz – 20 kHz
Sensitivity
107 dB (1 kHz, 1 mW) / 94 dB (1 kHz, 1 mW)
Impedance
11 Ω (1 kHz)
Crossover
Integrated 4-way passive crossover
Isolation
20 dB (M20), 15 dB (M15), 10 dB (MX) with modules
Summarized by Shop
4.8
6 ratings
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The audio quality is absolute perfection
Andrew · November 19, 2024
Satisfied! Pricy but great audio experience by 64 audio
Dongan · October 16, 2023
Excellent decision for me to go with the 64s! Great sound! No need to turn it up to hear your mix. The pressure relief technology is an immediate feel to the IEM! Highly recommended ear piece!
