What's unique about the brand
64 Audio is a brand best known for IEMs with highly novel technologies like LID (Linear Impedance Design) circuits that maintain consistent frequency response across different sources, and unique driver configurations, including the industry-first 18 balanced-armature driver U18t and the Solo's single 14.2mm planar magnetic driver with dual Helmholtz resonator chambers.
What reviewers are saying
We read all the reviews. Here's what reviewers feel most strongly about:
- 64 Audio utilizes a unique "tia" (tubeless in-ear audio) system, which eliminates traditional tubes and dampers in favor of open balanced armature drivers set within custom-designed acoustic chambers, with a single bore nozzle to maximize coherence and minimize resonances.
- They implement "Apex" technology across their IEM lines, a pneumatically controlled venting system using swappable modules designed to alleviate pressure in the ear canal, thereby reducing listening fatigue, in addition to subtly modifying the low-end response.
- 64 Audio offers a fully computerized CIEM manufacturing process, utilizing digital ear mold scanning, software trimming, and 3D printing which significantly reduces turnaround time, allows for precise fits, and retains customer ear mold data for future purchases.
- The brand distinguishes itself by designing IEMs to maintain a consistent sound signature regardless of the source device's output impedance through its proprietary "LID" (Linear Impedance Design) tech.
Our favorite reviewer quotes:
- "This is one of the most satisfying sub-bass responses I've heard; voluptuously dark and thunderous, the sub region smoothly transitions into the lush, yet grippy lower bass. It always satiates, yet never overpowers or gets too Empire Ears-ish, leaving plenty of room for the higher frequencies to radiate." (https://audio46.com/blogs/headphones/64-audio-volur-review)
- "The vocal performance on the Solo is so captivating that you won't want to take them out once you start listening. 64 Audio has truly outdone themselves here, proving that sometimes, it's worth being late to the party if you're bringing this level of sound quality." (https://www.theaudiostore.in/blogs/reviews/64-audio-solo-planar-magnetic-driver-iems-a-heartfelt-review?srsltid=AfmBOoojg1GFLt5P9zhVEPQ-vJjOfZkr-5uFQPlAGAAYckea4HaM1MPQ)
- "The level of clarity and depth that Volür retrieves from even the most subtle background elements of the recording is mind blowing. That subtlety helps you appreciate the full range of the build and crescendo, and when the crescendo hits, the sense of depth, width and the total immensity of the scale that these tiny earphones can deliver is incredible." (https://bloomaudio.com/blogs/articles/natural-accurate-and-a-little-bit-fun-64-audio-volur-review?srsltid=AfmBOop08ncFfiPgyLdDnYwOnDq9Ac5E1UzOFjV57bbD4buXddrakLSe)
- "Soundstage is probably the best I've heard in an earphone yet – perhaps tied with the U12t, and with a slight edge over the Tia Fourte. 64 Audio has been impressing me again and again with how open their in-ear headphones can sound, and if you want tons of headroom in a small package, forget about any other challenger." (https://majorhifi.com/64-audio-u18t-review)
- "While most BA IEMs have a tendency to sound "flat" or compressed, failing to scale these shifts appropriately, the U12t is startlingly dynamic. From the abrupt, thunderous transitions of Sawano's "e of s" to capturing the shift in energy from the synth effect to the baseline at 1:20 in Taeyeon's "Make Me Love You," the U12t carries itself with decided ease." (https://headphones.com/blogs/reviews/64-audio-u12t-review-the-consummate-all-rounder?srsltid=AfmBOoql9Eus8MPIeJ8MvFcAtc5fmvD4hvI3ZM7MHY4MuBKqCvqvdFrz)
- "When it comes soundstage, the Fourté is easily in a class of its own for what I've heard in IEMs, and you could even say that it's its forte ... Terrible puns aside, though, the Fourté's soundstage is sincerely impressive and feels way more open and expansive than I thought I'd experience in an IEM." (https://headphones.com/blogs/reviews/64-audio-tia-fourte-review-i-really-wanted-to-love-these?srsltid=AfmBOoronQmWTarjng8cRhn55KorXeS9qp-cCwgSNFvAXqD3DS0ZNvSM)
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Products
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Lineup comparison
We think it's helpful to understand how their products compare. To learn more about each, scroll to the section above to click through to individual product pages.
Aspire Series
- Positioning: A practical entry-level line designed for live performance use.
- Description: Offers reliable, straightforward performance with a focus on robustness and comfort for stage monitoring. Compared to higher-tier models like the U4s and U6t, it delivers essential functionality for small rooms and tight budgets without extra driver complexity.
U4s
- Positioning: A balanced model offering a simple 4-driver setup for clear, accessible sound.
- Description: Provides clear mids and highs through a TIA high driver paired with balanced armature lows for straightforward performance. Compared to the Aspire Series and U6t, it offers a middle ground in cost and technical refinement.
U6t
- Positioning: A mid-tier design focused on delivering dynamic musical reproduction with subtle added color.
- Description: Features a neutral tuning base with slight tonal enhancements and a more refined driver layout than the U4s. Compared to the Aspire Series and U4s, it caters to users seeking improved sonic detail and versatility without a significant price jump.
Nio
- Positioning: A high-end option engineered with an advanced 8-driver configuration for richer sound.
- Description: Delivers smoother treble and fuller mids through its combination of one TIA high driver, a balanced armature high-mid, multiple mid drivers, and a dynamic low, ensuring organic sound quality. Compared to the U6t and U4s, it targets users with higher budgets seeking versatile performance.
Fourte
- Positioning: A flagship model showcasing groundbreaking in-ear design with premium materials.
- Description: Stands out with an advanced tubeless design and superior TIA technology that delivers exceptional clarity and dynamic range through multiple drivers. In contrast to the Nio and other lower-tier products, it represents state-of-the-art performance and refined functionality for high-resolution, critical listening scenarios.
Used
64 Audio
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