Thieaudio Monarch MK3 and Letshuoer Mystic 8 use 2DD+6BA+2EST and 8BA driver setups respectively. Thieaudio Monarch MK3 costs $1,000 while Letshuoer Mystic 8 costs $1,000. Letshuoer Mystic 8 holds a slight 0.4-point edge in reviewer scores (8.1 vs 8.5). Thieaudio Monarch MK3 carries a user score of 6.8. Thieaudio Monarch MK3 has better bass with a 0.8-point edge, Letshuoer Mystic 8 has slightly better mids with a 0.3-point edge, Letshuoer Mystic 8 has better treble with a 0.8-point edge, Thieaudio Monarch MK3 has better dynamics with a 0.7-point edge, Letshuoer Mystic 8 has better soundstage with a 0.5-point edge, Letshuoer Mystic 8 has slightly better details with a 0.3-point edge and Letshuoer Mystic 8 has better imaging with a 0.6-point edge.
Insights
Metric | Thieaudio Monarch MK3 | Letshuoer Mystic 8 |
---|---|---|
Bass | 7.5 | 6.8 |
Mids | 7.8 | 8.2 |
Treble | 7.9 | 8.7 |
Details | 7.8 | 8 |
Soundstage | 8.5 | 9 |
Imaging | 7.4 | 8 |
Dynamics | 7.7 | 7 |
Gaming capabilities | 7.6 | 7.5 |
Thieaudio Monarch MK3 Aggregated Review Score
Thieaudio Monarch MK3 Average Reviewer Scores
Letshuoer Mystic 8 Aggregated Review Score
Letshuoer Mystic 8 Average Reviewer Scores
Thieaudio Monarch MK3 Details
Driver Configuration: 2DD+6BA+2EST
Tuning Type: U-Shaped
Price (Msrp): $1,000
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Letshuoer Mystic 8 Details
Driver Configuration: 8BA
Tuning Type: Neutral
Price (Msrp): $1,000
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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
Letshuoer Mystic 8 User Review Score
Letshuoer Mystic 8 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
ALetshuoer Mystic 8 Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.5Gaming Grade
AThieaudio 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.
Letshuoer Mystic 8 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- Refined execution with coherent frequency integration. Natural timbre reproduction and engaging presentation. Strong versatility.
Average Technical Grade
S-- Excellent clarity and detail. Precise imaging and expansive soundstage. Manages complex passages with minimal smearing and good transient speed.
Thieaudio Monarch MK3 Reviews
Thieaudio Monarch MK3 reviewed by: Tim Tuned
2025-08-14MK2 but more fun and more V-shape Not as natural in timbre Tim Tuned Youtube Channel
Thieaudio Monarch MK3 reviewed by:
Fresh Reviews
Thieaudio Monarch MK3 reviewed by: Z-Reviews
Thieaudio Monarch MK3 reviewed by: Smirk Audio
Elevated, well-textured mid-bass. Pleasant mids. Elevated upper-treble may be pesky to some.
Thieaudio Monarch MK3 reviewed by: Jays Audio
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
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
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
Fatiging at times for me, too fun at times. Jaytiss Youtube Channel
Thieaudio Monarch MK3 reviewed by: Shuwa-T
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
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.
Letshuoer Mystic 8 Reviews
Letshuoer Mystic 8 reviewed by: Gizaudio Axel
2025-09-07Neutral-bright tuning with natural midrange tone. Vocal-focused with realistic timbre. Natural, lifelike mids and vocals. Refined treble with air and clarity. Good technicalities. Light BA bass. Unvented design. Upper treble may bother those who are extra sensitive to treble.Gizaudio Axel original ranking
Gizaudio Axel Youtube Channel
Letshuoer Mystic 8 reviewed by: Smirk Audio
2025-07-16check links for more info:
Letshuoer Mystic 8 reviewed by: Z-Reviews
Letshuoer Mystic 8 reviewed by: Super* Review
Surprising in a lot of fronts. Maybe a little bit overpriced but I like itSuper* Review original ranking
Super* Review Youtube Channel
Letshuoer Mystic 8 reviewed by: Jays Audio
Vocal benchmark for female vocals under $2000. Clean, airy, sweet, ethereal. Better than Diva and direct upgrade to OG Oracle and OG Mangird Tea. What the Braindamage and Cantor wishes they could be. Great technical performance, and scales decently well. Recommended listening volume is mid to high volume around 75-80dbs. Not for bassy libraries like hiphop, and can be a bit energetic on kpop/jpop/rock stuff with a lot of treble. Jays Audio Youtube Channel
Letshuoer Mystic 8 reviewed by: Jaytiss
Lack Bass Richness, but is a beautiful set. Jaytiss Youtube Channel
Letshuoer Mystic 8 reviewed by: Shuwa-T
Vocal magic, midrange and upper mids are crystal clear while never being too technical Both sub and midbass presence is less than normal which makes this more genre specific, not particularly suited for bass heavy genres
Thieaudio Monarch MK3 User Reviews
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You need to be signed in to write your own reviewIf this is what 'fun' sounds like, I ain't about it.
Pros
Detail retrievalCons
Recessed mids and odd timbre.Letshuoer Mystic 8 User Reviews
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Pros
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Cons
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