ThieAudio Prestige LTD and 64 Audio U4s use 1DD+4BA+4EST and 1DD+3BA driver setups respectively. ThieAudio Prestige LTD costs $1,300 while 64 Audio U4s costs $1,100. ThieAudio Prestige LTD is $200 more expensive. ThieAudio Prestige LTD holds a slight 0.1-point edge in reviewer scores (8.3 vs 8.2). 64 Audio U4s has better bass with a 0.5-point edge, ThieAudio Prestige LTD has significantly better treble with a 1-point edge, 64 Audio U4s has significantly better dynamics with a 1.4-point edge and ThieAudio Prestige LTD has significantly better soundstage with a 2-point edge.
Insights
Metric | ThieAudio Prestige LTD | 64 Audio U4s |
---|---|---|
Bass | 7.5 | 8 |
Mids | 7.8 | 7.8 |
Treble | 7.8 | 6.8 |
Details | 7.3 | 7.3 |
Soundstage | 8 | 6 |
Imaging | 7.5 | 7.5 |
Dynamics | 6.3 | 7.7 |
Tonality | 7.8 | 7.4 |
Technicalities | 7.8 | 7 |
ThieAudio Prestige LTD Aggregated Review Score
Average Reviewer Scores
64 Audio U4s Aggregated Review Score
Average Reviewer Scores
ThieAudio Prestige LTD Details
Driver Configuration: 1DD+4BA+4EST
Tuning Type: n/a
Brand: ThieAudio Top ThieAudio IEMs
Price (Msrp): $1,300
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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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ThieAudio Prestige LTD User Review Score
Average User Scores
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64 Audio U4s User Review Score
Average User Scores
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ThieAudio Prestige LTD Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.8Gaming 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
BThieAudio Prestige LTD 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- Good technical performance. Clear separation and decent detail retrieval across various tracks. Soundstage shows reasonable width and depth.
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.
ThieAudio Prestige LTD Reviews
Clean and natural signature with treble emphasis. LOTS of details with airy treble without going overboard (better treble extension vs MK2/MK3). Bass is not as impactful versus MK3 but has better separation. Overall a technical monster, but can be a bit dry due to less mid-bass. Vocals are further vs MK3 and MK2 (not as forward), giving it that open sense of space. MK2 still the best for vocals, but LTD is an endgame all-rounder. Jays Audio Youtube Channel
check links for more info:Bad Guy Good Audio original ranking
Bad Guy Good Audio Youtube Channel
The unit I reviewed had wonky bass, expect this to change if I review a unit with proper bass. Jaytiss Youtube Channel
A much better implementation than the Prestige OG
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The best Thieaudio I've heard to date. Very close tonality to the Mk3, but with better technical performance, especially in the dynamics and stage departments.
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
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