64 Audio U12t and Elysian Apostle use 12BA and 1DD+2BA+2EST driver setups respectively. 64 Audio U12t costs $1,999 while Elysian Apostle costs $1,799. 64 Audio U12t is $200 more expensive. Elysian Apostle holds a slight 0.3-point edge in reviewer scores (8.5 vs 8.9). Elysian Apostle has better mids with a 0.8-point edge, Elysian Apostle has slightly better treble with a 0.3-point edge, Elysian Apostle has slightly better dynamics with a 0.3-point edge and Elysian Apostle has slightly better soundstage with a 0.3-point edge.
Insights
Metric | 64 Audio U12t | Elysian Apostle |
---|---|---|
Bass | 8.5 | 8.9 |
Mids | 8.2 | 9 |
Treble | 7.7 | 8 |
Details | 8.9 | 8.9 |
Soundstage | 8.2 | 8.5 |
Imaging | 9.1 | 8.9 |
Dynamics | 7.7 | 8 |
Tonality | 7.9 | 8.7 |
Technicalities | 8.6 | 8.8 |
64 Audio U12t Aggregated Review Score
Average Reviewer Scores
Elysian Apostle Aggregated Review Score
Average Reviewer Scores
64 Audio U12t Details
Driver Configuration: 12BA
Tuning Type: Neutral with bass boost
Brand: 64 Audio Top 64 Audio IEMs
Price (Msrp): $1,999
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Elysian Apostle Details
Driver Configuration: 1DD+2BA+2EST
Tuning Type: V-Shaped
Brand: Elysian Top Elysian IEMs
Price (Msrp): $1,799
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64 Audio U12t User Review Score
Average User Scores
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Elysian Apostle User Review Score
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64 Audio U12t Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.9Gaming Grade
B+Elysian Apostle Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.3Gaming Grade
A-64 Audio U12t Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A- Well-executed tonal character. No major flaws with good technical control. Smooth presentation works with multiple genres.
Average Technical Grade
S-- Excellent clarity and detail. Precise imaging and expansive soundstage. Manages complex passages with minimal smearing and good transient speed.
Elysian Apostle Scorings
Average Technical & Tuning Grades
Average Tunign Grade
S-- Highly polished technical execution. Excellent frequency synergy creates an immersive experience. Enhances musical content.
Average Technical Grade
S-- Excellent clarity and detail. Precise imaging and expansive soundstage. Manages complex passages with minimal smearing and good transient speed.
64 Audio U12t Reviews
As good as it gets. Great tuning and techs. Best set I've heard to date. Closest thing to speakers. Love it.
Amazing separation and presentation, amazing bass that extends down low and hits pretty authoritavely (not just in the context of BA sets - very good quantity and quality). Pretty interesting tuning with dialed down upper mids so certain instruments and voices seem more in front of you. Pretty clear sense of center image. Previously Owned
Terrific dynamic range and soundstage depth; the closest I have heard to a two-channel system in an IEM for these qualities. Precogvision Youtube Channel
TOTL tech. Mid-scoop can affect mids/vocal texture and placement, recessed midrange, treble is harsh at high volumes. Great bass detail, but could have more impact. Jays Audio Youtube Channel
Comment: Really clean sounding monitor with excellent technical aspects. Bass texture, superb clarity Can sound too sterile
Good resolution and dynamics with great imaging. Smooth, slightly recessed upper-mids with an upper treble peak.
Just Smooth and nice, great all arounder with smooth technicals, but too boring. Jaytiss Youtube Channel
Extremely versatile signature, great bass and details Potentially too safe tuning wise Tim Tuned Youtube Channel
Amazing bass (for a BA), top-tier resolution and detail-oriented signature. Crin Youtube Channel
IEMRanking AI
2025-09-11
The 64 Audio U12t is a mature flagship-class UIEM built around twelve balanced armatures per side and the company’s tia (open-BA) and apex pressure-relief tech; it lists at $1,999. Module options (mX/m15/m20) vary isolation from roughly −10 to −20 dB, giving modest control over perceived balance without changing the core tuning. The driver split—1 tia high, 1 high-mid, 6 mid, 4 low—aims for coherence via a 4-way crossover in a compact, aluminum shell.
Tonally the U12t trends neutral with a sub-bass lift, yielding clean mids and controlled, generally safe treble; frequency-response databases show the gentle low-end emphasis with even mids. Swapping apex modules can nudge the balance (e.g., M20 a bit more bass, M15 a touch airier) without altering the U12t’s fundamental character. Technical performance remains the calling card: resolution, imaging, layering, and BA-bass quality are repeatedly praised at the top of the class.
Trade-offs are mostly about preference and price: treble can read polite with minor quirks depending on chain and tips, and midrange body is slightly lean versus warmer sets. Given the premium MSRP, overall value hinges on prioritizing top-tier technicalities and long-session comfort via apex.
Elysian Apostle Reviews
Instrument separation is good, and is a nice darkness, but can be silbilant. Jaytiss Youtube Channel
Exceptional in every way. Incredibly textured bass, forward vocals, top-tier EST treble, and insane detail.Gizaudio Axel original ranking
Gizaudio Axel Youtube Channel
Clean, neutral, and clear vocals. Reminds me of a cleaner Volume S or slightly better OG Oracle, but very expensive, maybe if you can find one around $1000 since it's more of a sidegrade to RSV, Mystic 8, and Arcanis vocal wise. If you want clean vocals Monarch MK2 does the same thing but for $700 less. Jays Audio Youtube Channel

The Elysian Apostle delivers a V-shaped signature with a powerful, sub-bass-focused low end that offers substantial rumble and physicality, though some listeners might find it occasionally overwhelming or lacking in tight control. Its dual electrostatic drivers provide crisp, extended treble with good air and minimal harshness, while the midrange remains clear and natural despite slight recession, particularly excelling with vocal clarity and emotional delivery.
Comfort is mixed due to the large nozzle diameter, which demands extensive tip-rolling for a secure fit, though the lightweight aluminum shells are ergonomic for extended wear once settled. The Pentaconn ear connectors offer stability but limit third-party cable options, and the included accessories like the Divinus Velvet tips are functional but basic for the price tier.
Positioned as an "Annihilator Junior", the Apostle captures much of Elysian’s energetic house sound at a lower cost, offering strong technical performance like wide staging and solid resolution. However, its bass dominance and fit quirks make it less versatile across genres, appealing mainly to those seeking a fun, dynamic listen rather than strict neutrality.
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