64Audio U12t vs Noble Audio Onyx
Introduction
The 64Audio U12t and Noble Audio Onyx are high-end in-ear monitors designed to reproduce sound with exceptional clarity, detail, and precision. Let's examine both models and discuss design, sound, features, and price so you can choose the right IEM for your listening needs.
Not the right fit? Browse other 64Audio and Noble Audio In-Ear Monitors.
64Audio U12t vs Noble Audio Onyx Price Comparison
The U12t and Onyx sit at two different price points.
The U12t comes in at $1,999.00.
The Onyx comes in at $3,200.00.
The Onyx is significantly more expensive than the U12t. Let's dive into the specs, design, sound signatures, and features of both in-ear monitors so you can get a better idea of what makes one stand out from the other.
The 64Audio U12t
The U12t is a high-end universal in-ear monitor from 64Audio. It packs 12 balanced armature drivers per side (one of which is 64Audio's patented tia high driver) and features 64Audio technologies like Apex, Tia, and Linear Impedance Design for precise sound reproduction.
64Audio U12t Features:
- Twelve precision balanced armature drivers
- tia™ (Tubeless In-ear Audio) technology for open, natural sound
- apex™ modules (m12, m15, m20, mX) to reduce ear fatigue
- LID™ (Linear Impedance Design) for consistent sound across sources
- Ergonomic textured aluminum shell with raised metal logos and chamfered faceplate bezels.
64Audio U12t Specs:
Driver Configuration: 1 tia High Driver – 1 High-Mid Driver – 6 Mid Driver – 4 Low Driver
Frequency Response: 10hz – 20kHz
Sensitivity: 108 dB/mW @1kHz
Crossover: Integrated 4-way Passive Crossover
Impedance: 12.6 +1/-2 Ω from 10hz – 20kHz
Apex Technology Isolation: -20dB, -15dB, -12dB, -10dB
The Noble Audio Onyx
The Noble Audio Onyx is a quadbrid IEM packed with cutting-edge driver technologies to give you an impactful and immersive listening experience.
Noble Audio Onyx Features:
- 8-driver configuration: 1 Dynamic, 4 BA (2 mid, 2 high), 2 Electrostatic, 1 Bone Conduction Driver
- Precision CNC Aluminum Shell with Raffir Composite Faceplate
- Eletech Courage 4-core OCC silver-plated copper cable with 4.4mm termination
- Stainless steel wax guard for enhanced driver protection
Noble Audio Onyx Specs:
Driver Configuration: 1 Dynamic, 4 BA (2 mid, 2 high), 2 Electrostatic, 1 Bone Conduction Driver
Frequency Response: 20Hz – 70kHz
Impedance: 14Ω.
Crossover: 5-way crossover design.
Design and Build Quality
The U12t and Onyx feature are built differently, incorporating shapes, and materials to deliver a lightweight feel and secure fit in their own unique way.
The U12t features fresh aesthetics for 2025. A Textured Silver Shell Color, Raised Metal Logos, and Chamfered Faceplate Bezel deliver a more elegant look and feel.
At the front, you'll find the Apex ports under the chamfered 64Audio logo. Overall build quality is top-notch - the U12t feels solid in the hand and the new textured shells offer a more premium feel.
The Noble Audio Onyx features CNC Aluminum Shells with a special Raffir composite faceplate for enhanced aesthetics. The Onyx is small and compact, making easy to fit and comfortable to wear for extended periods. For enhanced durability, the Onyx features a stainless steel wax guard and a premium Eletech Courage cable.
Sound Signature
You're probably looking to see how these IEMs stack up on sound. We'll share our thoughts here, although keep in mind this information tends to be anecdotal and subjective.
U12t Sound Signature
The U12t features a neutral, reference-level tuning known for its accurate, detailed, and immersive sound presentation. It is the perfect in-ear monitor if you're looking to scrutinize every note and detail in your favorite music.
The bass in the U12t is well-balanced, delivering good impact and rumble when needed. Its midrange is natural and clear, allowing voices to come through with life-like clarity. Its soundstage is one of the largest you'll hear in an IEM, offering accurate sound placement for an immersive sound.
Onyx Sound Signature
The Noble Audio Onyx steers away from the precision-focused tuning of the U12t and instead offers a rich and immersive sound characterized by powerful bass and a wide soundstage.
The powerful dynamic driver delivers well-defined sub-bass rumbles and an impactful mid-bass kick. The midrange is natural and detailed, featuring life-like vocals and realistic instrumentals. The Onyx's treble is airy, sparkly, but smooth. This helps add space between sounds for a very immersive sound experience.
Price and Value
The U12t and Onyx IEMs offer remarkable sound, build quality, features, and accessories.
The $1,999 U12t comes with a fresh new look and a generous set of accessories in the package. In the box, you get all the current Apex Modules and a pair of Pearl Premium Cables in 3.5mm & 4.4mm. You also get a selection of ear tips, a leather case, a cleaning tool, clips, and stickers in the package.
The $3,200 Onyx is significantly more expensive than the U12t. At that price, you're getting a premium-built IEM with precision CNC Aluminum Shells, Raffir Faceplates, an exotic driver package that combines Electrostatic and Bone Conduction Drivers, and a premium Eletech Courage Cable.
Our Thoughts
The 64Audio U12t delivers reference-level resolution, detail, tone, and an immersive soundstage. It is the IEM to get if you want to experience an authentic studio-quality sound. Music on the U12t sounds clean, clear, and accurate - no matter the genre. The 2025 version is even better, boasting an updated design and accessories package without the extra cost. You can swap out Apex Modules to fine-tune the sound to your liking.
The Noble Audio Onyx sits at the opposite end of the sound spectrum. Where the U12t goes for an accurate, studio-like sound, the Onyx goes for a more exciting presentation with its tight bass, weighty vocals, and shiny highs. The Onyx's soundstage is a highlight, offering an immersive sound that spans deep from left to right, front to back. Build quality is exceptional too, with its Machined Aluminum Shells and that unique Raffir faceplate aesthetic. You're also getting a premium Eletech Courage cable in the box for enhanced durability and looks.
Another IEM to consider in this price range is the FiR Audio Radon 6. The Radon 6 offers an emotional and immersive sound thanks to its Kinetic Bass technology. It also features ATOM XS modules for enhanced comfort and sound.
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