64Audio U12t vs A12t
Introduction
The U12t and A12t are high-end IEMs from 64Audio. Both in-ear monitors are designed to deliver top-tier sound without compromise. Let's compare both models so you can decide which IEM suits your needs best.
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64Audio U12t vs A12t Price Comparison
The 64Audio U12t and A12t share the same sticker price.
The U12t comes in at $1,999.00.
The A12t comes in at $1,999.00.
With both models coming in at basically the same price, we'll have to 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 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 A12t
The 64Audio A12t is a high-end custom-molded in-ear monitor from 64Audio. It features 12 precision Balanced Armature Drivers, including 64Audio's patented tia high-frequency driver. Its shells are made of high-quality custom-molded resin built specifically to the customer's ear anatomy. Like the U12t, the A12t packs 64Audio technologies like Apex, Linear Impedance Design, and tia.
64Audio A12t Features:
- Air Pressure Exchange (Apex)
- Tubeless In-Ear Audio (tia)
- Linear Impedance Design (LID)
- 3D-Fit
64Audio A12t 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 w/ m20 module, -15dB w/ m15 module
Design and Build Quality
The U12t and A12t offer different materials and design. The U12t is universal IEM that features 64Audio's industrial half-moon aluminum shells, while the A12t features custom-molded resin shells and a customizable faceplate design.
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 A12t is a custom-fit IEM that's molded exactly to your ear anatomy for unmatched fit and comfort. 64Audio uses high-quality resin for the shells for enhanced durability and to give you a clear view of the IEM's internals. The faceplates are custom-made to your specification and can feature a wide range of colors, designs, or custom artworks.
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.
A12t Sound Signature
The A12t packs the exact same driver and crossover configuration as the U12t. Like the U12t, the A12t is tuned to deliver a neutral, reference-level sound with accurate and detailed tones.
On-ear, the A12t delivers slightly more bass and a slightly less emphasized upper-midrange/treble. This is not a tuning difference as both models are intended to deliver the same sound. Rather, the A12t's superior fit and noise isolation allows sounds to reach your eardrums with less interference, resulting in a better perception of low-end frequencies.
Price and Value
The 64Audio U12t and A12t come in at the exact same price point. Each one is built to 64Audio's high-quality standards but are intended for two different types of listeners.
The $1,999 U12t delivers serious high-resolution sound - it doesn't get much better than this IEM in terms of balance, clarity, detail, and immersion. The 2025 version is even better - delivering the same sound audiophiles have come to love but with a fresh new look and a generous set of accessories in the package.
The 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.
Consider the A12t the U12t's professional cousin. Both IEMs feature the same 12-driver configuration and similar tuning, but the A12t features a custom-molded design that's intended to deliver the best fit, comfort, and noise isolation for stage engineers, musicians, and artists.
Our Thoughts
The 64Audio U12t and A12t feature exquisite sound and build quality. Both IEMs are solid choices whether you're a casual listener, an avid audiophile, or a professional artist.
The 64Audio U12t is a very popular IEM known for delivering exceptional resolution, detail, tone, and soundstage immersion. It is the IEM to get if you want to experience your music like never before. The 2025 version is even better - boasting an updated design and accessories package without the extra cost. Like other universal 64Audio IEMs, you can swap out Apex Modules to fine-tune sound to your liking.
The A12t delivers a similar sound experience as the U12t but boasts superior fit, comfort, and noise isolation. If you're a serious performer looking for a high-performance in-ear monitor like the U12t but want a more secure fit, the A12t is the CIEM to get. 3D-Fit technology ensures a glove-like fit, allowing you to perform your best without worry. Its clear and accurate sound ensures you're on cue and in tune no matter how hectic the performance is.
The only downside with the A12t is the need to get ear impressions from an audiologist. After which, you'll have to wait around 6-weeks to get your custom IEM.
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