64Audio U12t vs U18t
Introduction
The U12t and U1t are high-end universal IEMs from 64Audio. These in-ear monitors are designed to deliver top-tier sound quality through their unique features and tunings. Let's compare both models so you can decide which IEM suits your needs best.
Not the right fit? Browse other 64Audio In-Ear Monitors.
64Audio U12t vs U18t Price Comparison
The 64Audio U12t and U18t sit at different the very top of 64Audio's universal IEMs.
The U12t comes in at $1,999.00.
The U18t comes in at $2,999.00.
You're looking at about a $1000 price difference between these two models. Should you shell out the extra cash to get the higher-end U18t or will you be satisfied with the U12t?
Let's dive deep into the specs, design, sound signatures, and features of both so you can get a better idea of what each IEM brings to the table.
The 64Audio U12t
The U12t is a high-end universal in-ear monitor from 64Audio. It sports 12-drivers per side, consisting of 11 Balanced Armatures and 64Audio's patented tia driver. The U12t features 64Audio technologies like Apex, Tia, and Linear Impedance Design for unmatched comfort and sound.
64Audio U12t Features:
- Tubeless In-Ear Audio (tia)
- Air Pressure Exchange (Apex)
- Linear Impedance Design (LID)
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, -10dB
The 64Audio U18t
The U18t is 64Audio's most expensive U-series IEM. It features 18 drivers per side one of which being 64Audio's patented tia driver. The U18t also comes with 64Audio's pressure-relieving Apex technology for enhanced sound and comfort.
64Audio U18t Features:
- Air Pressure Exchange (Apex)
- Tubeless In-Ear Audio (tia)
64Audio U18t Specs:
Driver Configuration: 1 tia High Driver – 1 High-Mid Driver – 8 Mid Drivers – 8 Low Drivers
Frequency Response: 10hz – 20kHz
Sensitivity: 111 dB/mW Sensitivity @1kHz
Crossover: Integrated 4-way Passive Crossover
Impedance: 9Ω
Apex Technology Isolation: -20dB, -15dB, -10dB (Variable Isolation (m20, m15, m12, mX modules included in the box)
Design and Build Quality
The U12t and U18t features very similar shell shapes and use almost identical materials for their faceplates. For 2025, both the U12t and U18t received significant updates to their overall design and feel.
64Audio updated the U12t for 2025 with a fresh new aesthetic. A Textured Silver Shell Color, Raised Metal Logos, and Chamfered Faceplate Bezel deliver a more elegant look and feel. At 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 2025 U18t features an updated Flame Red Textured Shell with Gold Raised Metal Logos and Chamfered Faceplate Bezels for an eye-catching aesthetic. To match the updated look, the U18t comes with an exclusive gold-plated m20 Apex Module. The new U18t feels premium in the hand and boasts a more elegant look compared to its predecessor.
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 tight impacts and textured rumbles when needed. Its midrange is natural and clear, allowing voices to come through with life-like clarity and accuracy. Its soundstage is one of the largest you'll hear in an IEM, offering accurate sound placement for an immersive sound.
U18t Sound Signature
The U18t is known for its clear and revealing sound. It features a pronounced mid-bass tuning, which adds weight and warmth to vocals and instrumentals. Its emphasized treble frequencies bring out a ton of clarity from music, making subtle details easy to pick off. The overall sound is smooth, natural, and accurate.
Soundstage in the U18t is wide and deep, delivering an immersive sound with excellent sound positioning. Voices and instruments are very easy to pick out from even the busiest tunes, which makes for a very immersive listening experience.
Price and Value
The 64Audio U12t and U18t sit at different price points within 64Audio's product stack. Each one is built to 64Audio's high-quality standards, yet each IEM carries a different value proposition.
The $1,999 U12t packs 64Audio features like Apex, tia, and LID, and now comes with all the current Apex Modules in the box, alongside a pair of Pearl Premium Cables in 3.5mm & 4.4mm. You also get ear tips, a leather case, a cleaning tool, clips, and stickers in the package.
The 2025 U18t also comes with all current Apex Modules in the box, alongside a pair of brand new 8-braid SPC cables in 3.5mm and 4.4mm terminations. In the box you get multiple sets of ear tips, a leather case, a cleaning tool, clips, and stickers. The U18t comes with 64Audio proprietary technologies: Apex and tia.
Our Thoughts
The 64Audio U12t and Nio feature exquisite sound and build quality. These IEMs are a solid choice if you want to add a high-end IEM to your collection.
The $1,999 U12t delivers studio-like high-resolution sound - it doesn't get much better than this IEM in terms of balance, clarity, detail, and immersion. If that's your cup of tea, you can't go wrong with the U12t.
The 2025 version is even better - delivering the same sound audiophiles have come to love from the U12t, but with a fresh new look and a generous set of accessories in the package, including a new premium cable and all current Apex Modules.
The $2,999 U18t represents 64Audio's best efforts in creating the best studio monitor - and it doesn't disappoint. Music on the U18t sounds smooth, accurate, and detailed. From bass to treble, every note sounds full and detailed - never harsh or fatiguing. If you like a smooth yet detailed listening experience, this is the IEM to get.
With the 2025 version, you're getting the same sound, an updated look, a pair of premium cables, and all Apex Modules. How's that for a deal?
Another IEM to consider in this price range is the HIFIMAN Svanar IEM. The Svanar IEM features a W-shaped tuning with excellent vocal clarity and detail. The Svanar offers great on-ear comfort with its premium 24K gold plated back shell with a swan-inspired design.
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