Unique Melody MEST VS Thieaudio Monarch MK3

IEM Comparison: Expert & Community Scores Side-by-Side

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Unique Melody MEST and Thieaudio Monarch MK3 use 1DD+4BA+2EST+1BC and 2DD+6BA+2EST driver setups respectively. Unique Melody MEST costs $1,000 while Thieaudio Monarch MK3 costs $1,000. Thieaudio Monarch MK3 holds a slight 0.4-point edge in reviewer scores (7.7 vs 8.1). Thieaudio Monarch MK3 carries a user score of 6.8. Thieaudio Monarch MK3 has better treble with a 0.9-point edge, Thieaudio Monarch MK3 has significantly better dynamics with a 1.3-point edge, Unique Melody MEST has better details with a 0.5-point edge and Unique Melody MEST has significantly better imaging with a 1.4-point edge.

Insights

Metric Unique Melody MEST Thieaudio Monarch MK3
Bass 7.7 7.5
Mids 7.7 7.7
Treble 6.8 7.8
Details 8.3 7.8
Soundstage 8 8
Imaging 8.8 7.4
Dynamics 6 7.3
Tonality 7.3 7.8
Technicalities 8.2 7.8

Unique Melody MEST Aggregated Review Score

Average Reviewer Scores

Crin
Shuwa-T Precogvision Tim Tuned
Jays Audio
Super* Review

Average Reviewer Score:

7.7

Strongly Favorable


Thieaudio Monarch MK3 Aggregated Review Score

Average Reviewer Scores

Smirk Audio Tim Tuned Precogvision Nymz Fresh Reviews
Jays Audio Jaytiss Shuwa-T Gizaudio Axel
Z-Reviews

Average Reviewer Score:

8.1

Very Positive


Unique Melody MEST User Review Score

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 User Review Score

Average User Scores

Average User Score:

Based on 1 user reviews

6.8

Cautiously Favorable

Unique Melody MEST Gaming Score

Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

6.9

Gaming Grade

B+

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

7.5

Gaming Grade

A

Unique Melody MEST 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+
  • Very competent with articulate presentation. Well-defined layers and precise imaging. Soundstage is immersive and handles dynamics well.
Bass A
Strong, well-defined bass with good texture. Delivers satisfying punch and rumble without overwhelming other frequencies.
Mids A
Excellent midrange with natural timbre and great detail retrieval. Vocals are forward and emotive with lifelike instrument reproduction.
Treble B+
Good treble response - clear and detailed without fatigue. Well-extended with proper air and sparkle.
Dynamics B
Good dynamic expression with solid impact. Handles volume contrasts well while maintaining good transient snap.
Soundstage A+
Exceptional soundstage with holographic imaging. Creates a truly three-dimensional space where instruments float naturally around you.
Details A+
Exceptional resolution that uncovers the deepest layers. Retrieves even the most minute details while maintaining natural timbre.
Imaging S-
Exceptional imaging with holographic precision. Creates a palpable sense of physical placement with perfect positional stability.
Gaming B+
Respectable environmental presentation favors atmosphere over precision. Detects obvious directional cues while conveying game world ambiance. Bad value-to-cost for gaming purpose - not recommended

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.
Bass A
Strong, well-defined bass with good texture. Delivers satisfying punch and rumble without overwhelming other frequencies.
Mids A
Excellent midrange with natural timbre and great detail retrieval. Vocals are forward and emotive with lifelike instrument reproduction.
Treble A
Excellent treble: airy, extended and well-controlled. Great micro-detail retrieval without sibilance or harshness.
Dynamics A-
Excellent dynamics with great contrast and speed. Transients are crisp and micro-details are clearly articulated.
Soundstage A+
Exceptional soundstage with holographic imaging. Creates a truly three-dimensional space where instruments float naturally around you.
Details A
Excellent detail retrieval: highly resolving without being clinical. Effortlessly reveals micro-details and textural subtleties.
Imaging A-
Excellent imaging: precise and stable placement. Instruments occupy specific points in space with tangible positions.
Gaming A
Clear spatial presentation handles directional cues effectively. Distinguishes key gameplay sounds while maintaining decent immersion. Bad value-to-cost for gaming purpose - not recommended

Unique Melody MEST Reviews

Reviewed by: Super* Review

Super* Review 9* * score normalized

Reviewed by: Jays Audio

Jays Audio 8.5 Reviewer Score
S- Tuning
S Tech
A MEST MK2 with slightly more uppermid/bass. More v-shaped. Even more AGGRESSIVE than MK2. Also gets fatiguing when cranked up/long-listening sesisons.

Jays Audio original ranking

Jays Audio Youtube Channel

Reviewed by: Shuwa-T

Shuwa-T 7.9 Reviewer Score
A Tuning
A+ Tech
Comment: Neutral yet fun due to subbass hump. Impressive clarity, holographic soundstage

Shuwa-T original ranking

Shuwa-T Website

Bass: A+ Mids: A- Treble: A Soundstage: A+ Details: S- Imaging: S-

Reviewed by: Precogvision

Precogvision 7.2 Reviewer Score
A- Tuning
A Tech
Engaging imaging with some minor coherency issues.

Precogvision original ranking

Precogvision Youtube Channel
Bass: A- Mids: A+ Treble: B Dynamics: B Details: A+ Imaging: S

Reviewed by: Tim Tuned

Tim Tuned 7 Reviewer Score
A- Tuning
S Tech
Impressive staging and details Aggressive signature

Tim Tuned original ranking

Tim Tuned Youtube Channel
Bass: A+ Mids: A+ Treble: A-

Reviewed by: Crin

Crin 6.5 Reviewer Score
B+ Tuning
A- Tech
A smooth, relaxing listen (in custom form) backed up with good technicalities.

Crin original ranking

Crin Youtube Channel

Thieaudio Monarch MK3 Reviews

Reviewed by: Z-Reviews

Z-Reviews 10 * score normalized
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Price: $999

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Reviewed by: Jays Audio

Jays Audio 8.5 Reviewer Score
S Tuning
S- Tech
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.

Bass is where the Monarch MK3 steals the show: tight, textured, and rumbly with real slam and no bleed, giving male vocals a more natural heft while staying clean. The Prestige LTD pushes the low end back for a lighter hit but trades that for a more open, airy stage and superior layering—great for busy mixes like rock, metal, and classical. The Hype 2 mirrors the LTD’s bass balance and rumble conceptually, but lacks the same overall technical resolve, making the MK3 the better pick for pop, EDM, R&B, and hip-hop that benefit from weighty sub-bass.

Through the midrange, the LTD steps ahead on separation, detail, and note definition, presenting vocals slightly set back yet more airy and sparkly; female vocals especially shine. The MK3 counters with more weight and engagement on male vocals and a forward presence, though its stage isn’t as deep or spacious as the LTD (a modest vertical lift over Hype 2, but not a “$1k soundstage”). Up top, the LTD has the smoothest, best-extended treble with the most air and microdetail of the trio. All three excel at moderate volume, but none invites cranking like certain high-volume specialists.

As an all-rounder, the MK3 checks nearly every box yet misses that distinctive “special sauce” expected at its price; think ~15–20% uplift over Hype 2. The LTD delivers the bigger technical jump at roughly 25–30%, with staging, extension, and air taking the crown, making a strong case paired with a cheaper daily driver. The Monarch MK2 still earns a nod for its midrange/vocal magic if that’s the priority. Final word: both LTD and MK3 score an S; for those willing to spend, they’re easy to recommend—just match the tuning to the library and the qualities valued most.


Jays Audio original ranking

Jays Audio Youtube Channel

Reviewed by: Jaytiss

Jaytiss 8.5 Reviewer Score
A Tuning
A- Tech
Fatiging at times for me, too fun at times.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: A- Treble: A- Dynamics: A+ Soundstage: A+

Reviewed by: Shuwa-T

Shuwa-T 8.2 Reviewer Score
A+ Tuning
A+ Tech
Better bass response compared to the mk2 Trades off the lush midrange in place of a cleaner sounding, almost boring midrange

Shuwa-T original ranking

Shuwa-T Website

Bass: S- Mids: A+ Treble: A+ Soundstage: A+ Details: A+ Imaging: S-

Reviewed by: Gizaudio Axel

Gizaudio Axel 8 Reviewer Score
A Tuning
A+ Tech
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

Reviewed by: Smirk Audio

Smirk Audio 7.9 Reviewer Score
A Tuning
A+ Tech
Elevated, well-textured mid-bass. Pleasant mids. Elevated upper-treble may be pesky to some.

Smirk Audio original ranking

Smirk Audio Head-Fi Profile

Bass: A+ Mids: A+ Treble: A Dynamics: A+ Details: A+ Imaging: A+

Reviewed by: Tim Tuned

2025-08-14
Tim Tuned 7.5 Reviewer Score
A Tuning
S Tech
MK2 but more fun and more V-shape Not as natural in timbre

Tim Tuned original ranking

Tim Tuned Youtube Channel
Bass: A+ Mids: A+ Treble: A+

Reviewed by: Precogvision

Precogvision 7.3 Reviewer Score
A- Tuning
A- Tech
Still perplexingly poor bass performance, but improves upon the Monarch MKII's treble extension noticeably.

Precogvision original ranking

Precogvision Youtube Channel
Bass: B Mids: A+ Treble: A+ Dynamics: B Details: A+ Imaging: A-

Reviewed by: Nymz

Nymz 7.1 Reviewer Score
A- Tuning
B+ Tech
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.

Nymz original ranking

Nymz Website

Bass: A- Mids: A- Treble: A+ Details: A- Imaging: B

Reviewed by: Fresh Reviews

Fresh Reviews 7* * The score of this reviewer influences only the Gaming Score
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Using this affiliate link for ordering your Thieaudio Monarch MK3 or any other IEM helps fund our free service at no extra cost to you.

Price: $999

Buy Thieaudio Monarch MK3 on Aliexpress

Unique Melody MEST User Reviews

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Thieaudio Monarch MK3 User Reviews

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Makavelian
6.8

If this is what 'fun' sounds like, I ain't about it.

Pros
Detail retrieval
Cons
Recessed mids and odd timbre.

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