Thieaudio Monarch MK3 VS 64 Audio U4s
IEM Comparison: Expert & Community Scores Side-by-Side
Thieaudio Monarch MK3 and 64 Audio U4s use 2DD+6BA+2EST and 1DD+3BA driver setups respectively. Thieaudio Monarch MK3 costs $1,000 while 64 Audio U4s costs $1,100. 64 Audio U4s is $100 more expensive. Both score 8.1 from reviewers. Thieaudio Monarch MK3 carries a user score of 6.8. 64 Audio U4s has better bass with a 0.5-point edge, 64 Audio U4s has slightly better mids with a 0.3-point edge, Thieaudio Monarch MK3 has better treble with a 0.8-point edge, 64 Audio U4s has slightly better dynamics with a 0.3-point edge, Thieaudio Monarch MK3 has significantly better soundstage with a 1.5-point edge and Thieaudio Monarch MK3 has better details with a 0.5-point edge.
Insights
| Metric | Thieaudio Monarch MK3 | 64 Audio U4s |
|---|---|---|
| Bass | 7.5 | 8 |
| Mids | 7.8 | 8.2 |
| Treble | 7.9 | 7.2 |
| Details | 7.8 | 7.3 |
| Soundstage | 8.5 | 7 |
| Imaging | 7.4 | 7.5 |
| Dynamics | 7.7 | 8 |
| Gaming capabilities | 7.6 | 6.5 |
Thieaudio Monarch MK3 Aggregated Review Score
Thieaudio Monarch MK3 Average Reviewer Scores
64 Audio U4s Aggregated Review Score
64 Audio U4s Average Reviewer Scores
Thieaudio Monarch MK3 Details
Driver Configuration: 2DD+6BA+2EST
Tuning Type: U-Shaped
Price (Msrp): $1,000
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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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Thieaudio Monarch MK3 User Review Score
Thieaudio Monarch MK3 Average User Scores
Average User Score:
Based on 1 user reviews
6.8Cautiously Favorable
64 Audio U4s User Review Score
64 Audio U4s Average User Scores
Average User Score: n/a
Based on 0 user reviews
No user reviews yet. Be the first one who writes a review!
Thieaudio Monarch MK3 Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.6Gaming Grade
A64 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+Thieaudio Monarch MK3 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- 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.
Thieaudio Monarch MK3 Reviews
Thieaudio Monarch MK3 reviewed by: Tim Tuned
2025-08-14
7.5
Reviewer Score
MK2 but more fun and more V-shape Not as natural in timbre Tim Tuned Youtube Channel
Thieaudio Monarch MK3 reviewed by:
Fresh Reviews
7*
* The score of this reviewer influences only the Gaming Score
Thieaudio Monarch MK3 reviewed by: Z-Reviews
10
* score normalized
Thieaudio Monarch MK3 reviewed by: Smirk Audio
7.9
Reviewer Score
Elevated, well-textured mid-bass. Pleasant mids. Elevated upper-treble may be pesky to some.
Thieaudio Monarch MK3 reviewed by: Jays Audio
8.5
Reviewer Score
Better low-end texture and overall more engaging than MK2, but lacks the mid-range/vocal magic, so depending on your preference either is great. Still TOTL tech like MK2. Great all-rounder. Jays Audio Youtube Channel
Thieaudio Monarch MK3 reviewed by: Precogvision
7.3
Reviewer Score
Still perplexingly poor bass performance, but improves upon the Monarch MKII's treble extension noticeably. Precogvision Youtube Channel
Thieaudio Monarch MK3 reviewed by: Gizaudio Axel
8
Reviewer Score
I prefer the Monarch MK II for its tonality, vocals, and timbre, but I get why some prefer the MK III. More bass, treble, and detail than the Monarch MK II. The vocal magic of the Monarch MK II is gone.Gizaudio Axel original ranking
Gizaudio Axel Youtube Channel
Thieaudio Monarch MK3 reviewed by: Jaytiss
8.5
Reviewer Score
Fatiging at times for me, too fun at times. Jaytiss Youtube Channel
Thieaudio Monarch MK3 reviewed by: Shuwa-T
8.2
Reviewer Score
Better bass response compared to the mk2 Trades off the lush midrange in place of a cleaner sounding, almost boring midrange
Thieaudio Monarch MK3 reviewed by: Nymz
7.1
Reviewer Score
An improvement in the bass and treble department over the Mk2, but without the same special sauce in the mid-range and with some imaging problems still.
64 Audio U4s Reviews
64 Audio U4s reviewed by: Smirk Audio
7.8
Reviewer Score
A tastefully colored U12t with a more intimate soundstage, a cutback in technicalities, and more bass realism.
64 Audio U4s reviewed by: Super* Review
9*
* score normalized
64 Audio U4s reviewed by: Jaytiss
7.8
Reviewer Score
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
7.7
Reviewer Score
Fantastic colored tonality with options, and the unique technical qualities to back it up. M12/M15 modules recommended. Precogvision Youtube Channel
Thieaudio Monarch MK3 User Reviews
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Pros
Detail retrievalCons
Recessed mids and odd timbre.64 Audio U4s User Reviews
"This is an example review"
Pros
- Example pro 1
- Example pro 2
Cons
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