Custom Art Fibae 5 and 64 Audio U4s use 1DD+2BA+2Planar and 1DD+3BA driver setups respectively. Custom Art Fibae 5 costs $1,100 while 64 Audio U4s costs $1,100. 64 Audio U4s holds a decisive 2.3-point edge in reviewer scores (5.8 vs 8.1). 64 Audio U4s has significantly better bass with a 2-point edge, 64 Audio U4s has significantly better mids with a 2.2-point edge, 64 Audio U4s has significantly better treble with a 3.2-point edge, 64 Audio U4s has significantly better dynamics with a 4-point edge, Custom Art Fibae 5 has better details with a 0.8-point edge and 64 Audio U4s has better imaging with a 0.5-point edge.
Insights
Metric | Custom Art Fibae 5 | 64 Audio U4s |
---|---|---|
Bass | 6 | 8 |
Mids | 6 | 8.2 |
Treble | 4 | 7.2 |
Details | 8 | 7.3 |
Soundstage | 7 | 7 |
Imaging | 7 | 7.5 |
Dynamics | 4 | 8 |
Gaming capabilities | 4.2 | 6.5 |
Custom Art Fibae 5 Aggregated Review Score
Custom Art Fibae 5 Average Reviewer Scores
64 Audio U4s Aggregated Review Score
64 Audio U4s Average Reviewer Scores
Custom Art Fibae 5 Details
Driver Configuration: 1DD+2BA+2Planar
Tuning Type: n/a
Price (Msrp): $1,100
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64 Audio U4s Details
Driver Configuration: 1DD+3BA
Tuning Type: neutral, bass-boosted neutral
Price (Msrp): $1,100
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Custom Art Fibae 5 User Review Score
Custom Art Fibae 5 Average User Scores
Average User Score: n/a
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64 Audio U4s User Review Score
64 Audio U4s Average User Scores
Average User Score: n/a
Based on 0 user reviews
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Custom Art Fibae 5 Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
4.2Gaming Grade
C-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
6.5Gaming Grade
B+Custom Art Fibae 5 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
C+- Generally enjoyable tonal character with some noticeable unevenness. Maintains listenability while showing room for refinement in frequency balance.
Average Technical Grade
C+- 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- Well-executed tonal character. No major flaws with good technical control. Smooth presentation works with multiple genres.
Average Technical Grade
A-- Competent technical presentation. Handles separation and detail well in most tracks, with modest soundstage and acceptable imaging capabilities.
Custom Art Fibae 5 Reviews
Custom Art Fibae 5 reviewed by: Jaytiss
It's the case of the treble being to peaky that it doesn't sound right. Jaytiss Youtube Channel
Custom Art Fibae 5 reviewed by: Nymz
Very technical and dynamic sound, with some funky tuning. Upper mid-range and treble can get in your face, but it works in the overall. Did not offend me.
64 Audio U4s Reviews
64 Audio U4s reviewed by: Smirk Audio
A tastefully colored U12t with a more intimate soundstage, a cutback in technicalities, and more bass realism.
64 Audio U4s reviewed by: Super* Review
64 Audio U4s reviewed by: Jaytiss
It's a solid set, with great build quality, but sonically isn't the specialist that I want it to be. Jaytiss Youtube Channel
64 Audio U4s reviewed by: Precogvision
Fantastic colored tonality with options, and the unique technical qualities to back it up. M12/M15 modules recommended. Precogvision Youtube Channel
Custom Art Fibae 5 User Reviews
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