64Audio U12t vs Tia Fourte
Introduction
The U12t and tia Fourte are flagship universal IEMs from 64Audio. These in-ear monitors are designed to deliver exceptional sound in their own unique way. Let's compare both models so you can decide which IEM suits your listening needs best.
Not the right fit? Browse other 64Audio In-Ear Monitors.
64Audio U12t vs tia Fourte Price Comparison
The 64Audio U12t and tia Fourte are both flagship IEMs but sit at different price points within 64Audio's IEM offerings.
The U12t comes in at $1,999.00.
The Fourte comes in at $3,599.00.
The Fourte costs almost twice as more as the U12t. Should you shell out the extra cash to get the more expensive model? 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 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 Fourte
The tia Fourte is 64Audio's flagship hybrid IEM. Under the hood, the Fourte combines 1 dynamic driver, two Balanced Armature Drivers, and two tia high drivers for unmatched bass impact and clarity. The Fourte features a full tia system comprising of the tia open driver, tia Single-Bore Design, and tia Acoustic Chambers for enhanced sound.
64Audio tia Fourte Features:
- Integrated Air Pressure Exchange (Apex)
- tia open BA Drivers
- tia Single-Bore Design
- tia Acoustic Chambers
64Audio tia Fourte Specs:
Driver Configuration: 1 tia High Driver – 1 High-Mid Driver – 1 tia Mid Driver – 1 Dynamic Low Driver
Frequency Response: 5hz – 22kHz
Sensitivity: 114dB Sensitivity @1kHz @1mw
Crossover: Integrated 4-way Passive Crossover
Impedance: 10Ω Impedance @1kHz
Apex Technology Isolation: -20dB Internal Apex
Design and Build Quality
The U12t and Fourte share a similar half-moon shell shape. Both feature 64Audio's lightweight and robust aluminum shells but each model sports their own unique faceplate designs.
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 Fourte features 64Audio's half-moon shells design for the best comfort and fit. Unlike U-Series IEMs, the Fourte doesn't have Apex ports, making way for a full-sized faceplate instead.
Speaking of faceplates, the Fourte boasts a unique green marble faceplate design with tia and 64Audio branding on top. The front shells are made of copper and feature bright orange paint, while the back shells feature aluminum wrapped in a matte black color for enhanced contrast. As with other 64Audio IEMs, the Fourte is well-built and feels premium in the hand.
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.
Fourte Sound Signature
The tia Fourte features a U-shaped tuning with elevated bass and treble frequencies. Bass is speaker-like, characterized by powerful, rounded punches. Midrange is smooth and detailed, allowing voices to come through with life-like clarity. The treble is generously extended and brings out a ton of clarity, detail, and sparkle from any music.
The highlight of the Fourte is its soundstage. It is one of the grandest soundstages you'll ever experience in an IEM, making for a very immersive listening experience. Perfect for listening to orchestras, watching movies, or playing games.
Price and Value
The 64Audio U12t and Fourte sit the top of 64Audio's universal IEM lineup. Each one is built to 64Audio's high standards but offer a different 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.
At $3,599 a pop, the tia Fourte is 64Audio's most expensive universal IEM. At that price you're getting a full suite of tia technologies for enhanced comfort and sound, and you also get built-in Apex with up to -20dB of isolation. The Fourte's design and build is high-quality all the way around - it features orange copper faceplates with an eye-catching green marble design mated to a lightweight aluminum back shell.
In the box, the tia Fourte comes with a premium leather case, premium foam and silicone ear tips, a black premium cable, cleaning tool, cable clip, and 64Audio sticker.
Our Thoughts
The 64Audio U12t and tia Fourte feature exquisite sound and build quality. Either of these IEMs is a solid choice if you're looking for a top-of-the-line listening experience.
The 64Audio U12t delivers exceptional resolution, detail, tone, and soundstage immersion. It is the IEM to get if you want to experience your music with top-tier clarity and detail. Everything on the U12t sounds clean, clear, and accurate. 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 sound to your liking.
The 64Audio tia Fourte delivers a bold, exciting sound, and one of the most immersive soundstages you'll ever hear in an IEM. If you like speaker-like bass, exciting vocals and instrumentals, and spacious soundstage, the Fourte is the TOTL IEM to get. With full tia technology and built-in Apex, listening to your favorite music will be immersive and exciting every single time.
Another IEM to consider in this price range is the FiR Audio Krypton 5 IEM. The Krypton 5 offers a realistic and detailed sound, courtesy of a dynamic driver and four BA Drivers inside machined aluminum shells. Kinetic Bass tech lets you hear and feel the bass, while ATOM Venting allows for pressure-free listening.
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