Oriolus MK2 and 64 Audio U4s are 1DD+3BA in-ear monitors. Oriolus MK2 costs $1,100 while 64 Audio U4s costs $1,100. 64 Audio U4s holds a decisive 1.7-point edge in reviewer scores (6.5 vs 8.2).
Insights
Metric | Oriolus MK2 | 64 Audio U4s |
---|---|---|
Bass | 6.5 | 8 |
Mids | 6.5 | 7.8 |
Treble | 6.5 | 6.8 |
Details | 6.5 | 7.3 |
Soundstage | 6.5 | 6 |
Imaging | 6.5 | 7.5 |
Dynamics | 6.5 | 7.7 |
Tonality | 6.5 | 7.4 |
Technicalities | 6.5 | 7 |
Oriolus MK2 Aggregated Review Score
Average Reviewer Scores
64 Audio U4s Aggregated Review Score
Average Reviewer Scores
Oriolus MK2 Details
Driver Configuration: 1DD+3BA
Tuning Type: V-Shaped
Brand: Oriolus Top Oriolus IEMs
Price (Msrp): $1,100
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64 Audio U4s Details
Driver Configuration: 1DD+3BA
Tuning Type: neutral, bass-boosted neutral
Brand: 64 Audio Top 64 Audio IEMs
Price (Msrp): $1,100
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Oriolus MK2 User Review Score
Average User Scores
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64 Audio U4s User Review Score
Average User Scores
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Oriolus MK2 Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
5.5Gaming Grade
B-64 Audio U4s Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.1Gaming Grade
BOriolus MK2 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
B+- Generally enjoyable tonal character with some noticeable unevenness. Maintains listenability while showing room for refinement in frequency balance.
Average Technical Grade
B+- Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
64 Audio U4s Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A-- Pleasing tonal balance with good technical control. Minor quirks present but not distracting. Demonstrates decent genre versatility.
Average Technical Grade
A-- Competent technical presentation. Handles separation and detail well in most tracks, with modest soundstage and acceptable imaging capabilities.
Oriolus MK2 Reviews
Lively yet non-fatiguing hybrid experience. Crin Youtube Channel
64 Audio U4s Reviews
A step down in techs from U12T (possibly a half step down from U6T). But very well tuned and adds in a dynamic driver punch. Timbre is slightly improved compared to U12T due to the increase in midbass and upper mids energy. On the second hand market, 64Audio IEMs are among the best values in portable audio, the U4S is no exception. Previously Owned
A tastefully colored U12t with a more intimate soundstage, a cutback in technicalities, and more bass realism.
It's a solid set, with great build quality, but sonically isn't the specialist that I want it to be. Jaytiss Youtube Channel
Fantastic colored tonality with options, and the unique technical qualities to back it up. M12/M15 modules recommended. Precogvision Youtube Channel
Oriolus MK2 User Reviews
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