64 Audio U12t VS JH Audio x L-Acoustics Contour XO
IEM Comparison: Expert & Community Scores Side-by-Side
64 Audio U12t and JH Audio x L-Acoustics Contour XO use 12BA and 10BA driver setups respectively. 64 Audio U12t costs $1,999 while JH Audio x L-Acoustics Contour XO costs $1,950. 64 Audio U12t is $49 more expensive. 64 Audio U12t holds a decisive 4-point edge in reviewer scores (8.5 vs 4.5).
Insights
| Metric | 64 Audio U12t | JH Audio x L-Acoustics Contour XO |
|---|---|---|
| Bass | 8.5 | 4.5 |
| Mids | 8.2 | 4.5 |
| Treble | 7.7 | 4.5 |
| Details | 8.9 | 4.5 |
| Soundstage | 8.2 | 4.5 |
| Imaging | 9.1 | 4.5 |
| Dynamics | 7.7 | 4.5 |
| Tonality | 7.9 | 4 |
| Technicalities | 8.6 | 5.5 |
64 Audio U12t Aggregated Review Score
Average Reviewer Scores
JH Audio x L-Acoustics Contour XO Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
4.5Generally Unfavorable
64 Audio U12t Details
Driver Configuration: 12BA
Tuning Type: Neutral with bass boost
Price (Msrp): $1,999
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JH Audio x L-Acoustics Contour XO Details
Driver Configuration: 10BA
Tuning Type: Variable
Price (Msrp): $1,950
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64 Audio U12t User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
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JH Audio x L-Acoustics Contour XO User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
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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+JH Audio x L-Acoustics Contour XO Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
3.6Gaming Grade
D+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.
JH Audio x L-Acoustics Contour XO Scorings
Average Technical & Tuning Grades
Average Tunign Grade
C-- Significantly flawed tuning. Noticeable frequency imbalances and unnatural timbre distract from music. Lacks versatility across recordings.
Average Technical Grade
B-- Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
64 Audio U12t Reviews
10*
* score normalized
9.1
Reviewer Score
As good as it gets. Great tuning and techs. Best set I've heard to date. Closest thing to speakers. Love it.
9
Reviewer Score
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
8.6
Reviewer Score
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
8.5
Reviewer Score
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
8.5
Reviewer Score
Comment: Really clean sounding monitor with excellent technical aspects. Bass texture, superb clarity Can sound too sterile
7.9
Reviewer Score
Good resolution and dynamics with great imaging. Smooth, slightly recessed upper-mids with an upper treble peak.
7.8
Reviewer Score
Just Smooth and nice, great all arounder with smooth technicals, but too boring. Jaytiss Youtube Channel
7.5
Reviewer Score
Extremely versatile signature, great bass and details Potentially too safe tuning wise Tim Tuned Youtube Channel
7.5
Reviewer Score
Amazing bass (for a BA), top-tier resolution and detail-oriented signature. Crin Youtube Channel
IEMRanking AI
2025-09-11
9.4
Reviewer Score
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.
JH Audio x L-Acoustics Contour XO Reviews
4.5
Reviewer Score
Not as much of a downsloping response as your average JH IEM, but treble issues are further exacerbated. Crin Youtube Channel
64 Audio U12t User Reviews
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