Unique Melody MEST mkII VS Symphonium Crimson

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

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Unique Melody MEST mkII and Symphonium Crimson use 1DD+4BA+2EST+1BC and 4BA driver setups respectively. Unique Melody MEST mkII costs $1,500 while Symphonium Crimson costs $1,500. Symphonium Crimson holds a clear 0.5-point edge in reviewer scores (7.9 vs 8.4). Symphonium Crimson has better bass with a 0.5-point edge, Symphonium Crimson has slightly better treble with a 0.4-point edge, Symphonium Crimson has slightly better soundstage with a 0.3-point edge and Symphonium Crimson has significantly better imaging with a 1-point edge.

Insights

Metric Unique Melody MEST mkII Symphonium Crimson
Bass 8.1 8.6
Mids 7.5 7.7
Treble 7.1 7.5
Details 8.2 8.1
Soundstage 8 8.3
Imaging 7.5 8.5
Dynamics 7 7
Tonality 7.4 8
Technicalities 7.9 8.2

Unique Melody MEST mkII Aggregated Review Score

Average Reviewer Scores

Fresh Reviews
Crin
Nymz Precogvision Tim Tuned
Jays Audio Audionotions Shuwa-T
Super* Review

Average Reviewer Score:

7.9

Strongly Favorable


Symphonium Crimson Aggregated Review Score

Average Reviewer Scores

Smirk Audio Jaytiss
Nymz Shuwa-T Precogvision
Z-Reviews Jays Audio

Average Reviewer Score:

8.4

Very Positive


Unique Melody MEST mkII User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

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Symphonium Crimson User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

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Unique Melody MEST mkII Gaming Score

Gaming Score & Grade

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

Gaming Score

6.7

Gaming Grade

B+

Symphonium Crimson Gaming Score

Gaming Score & Grade

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

Gaming Score

7.1

Gaming Grade

A-

Unique Melody MEST mkII 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
  • Good technical performance. Clear separation and decent detail retrieval across various tracks. Soundstage shows reasonable width and depth.
Bass A+
Excellent bass response - powerful yet controlled. Deep extension with authoritative slam while maintaining clarity.
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+
Exceptional resolution that uncovers the deepest layers. Retrieves even the most minute details while maintaining natural timbre.
Imaging A
Excellent imaging: precise and stable placement. Instruments occupy specific points in space with tangible positions.
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

Symphonium Crimson 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+
  • Very competent with articulate presentation. Well-defined layers and precise imaging. Soundstage is immersive and handles dynamics well.
Bass S-
Excellent bass response - powerful yet controlled. Deep extension with authoritative slam while maintaining clarity.
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+
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 A-
Good fundamental spatial awareness for most gaming scenarios. Handles basic positioning well but may lack nuance in complex situations. Bad value-to-cost for gaming purpose - not recommended

Unique Melody MEST mkII Reviews

Reviewed by: Super* Review

Super* Review 10* * score normalized
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Price: $1,499

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Reviewed by: Jays Audio

Jays Audio 8.5 Reviewer Score
S- Tuning
S Tech
TOTL imaging chops/layering. Tons of micro-details. Bass texture and impact second probably only to the Z1R. Wide and 3D staging. AGGRESSIVE, and get fatiguing when cranked up/long-listening sessions.

Jays Audio original ranking

Jays Audio Youtube Channel

Reviewed by: Audionotions

Audionotions 8.5 Reviewer Score
Very engaging. I usually prefer something more balanced and neutral, but this IEM has some special sauce. Very well-tuned from bass to treble - with a little bit of spice on top. Great tonality and amazing techs. Imaging is quite phenomenal, separation is great. Very detailed. If you have 700 to spend on IEMs, buy these on the used market and never look back. Warning - treble can be slightly hot. Also, timbre might sound just a tad artificial. Loaner

Audionotions original ranking

Website (Audionotions)

Reviewed by: Shuwa-T

Shuwa-T 8 Reviewer Score
A Tuning
A+ Tech
Comment: Bassier Mest v1 with slight cutback in clarity. Even more impressive bass response

Shuwa-T original ranking

Shuwa-T Website

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

Reviewed by: Nymz

Nymz 7.6 Reviewer Score
A Tuning
A Tech
Great bass and sheer detail, at the cost of wonky treble and not so accurate imaging queues. I find it work the best with eletronic music or modern metal. Still a solid contender to this date at a very good price in the used market.

Nymz original ranking

Nymz Website

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

Reviewed by: Precogvision

Precogvision 7.1 Reviewer Score
A- Tuning
A- Tech
A warmer, more coherent MEST with setbacks in resolution and imaging.

Precogvision original ranking

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

Reviewed by: Tim Tuned

Tim Tuned 7 Reviewer Score
A- Tuning
A+ Tech
Great balance, none offensive tuning with little to fault

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
Pretty much the same as the Mk1, though with extra sub-bass presence.

Crin original ranking

Crin Youtube Channel

Reviewed by: Fresh Reviews

Fresh Reviews 5.5* * The score of this reviewer influences only the Gaming Score
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Using this affiliate link for ordering your Unique Melody MEST mkII or any other IEM helps fund our free service at no extra cost to you.

Price: $1,499

Buy Unique Melody MEST mkII on HiFiGO

Symphonium Crimson Reviews

Reviewed by: Z-Reviews

Z-Reviews 9.5 * score normalized

Symphonium Crimson lands with a bang: a four–BA, four-way crossover design that somehow delivers epic energy without a dynamic driver. Tonality reads neutral-bright with thunderous sub-bass—not a basshead hump, but a slab of solid, deep extension that stays clean. Mids stay clear for vocals and strings, treble rises for sparkle and excitement, and the presentation spreads out like pulled-apart audio “shreds” across a big canvas. The effect is clarity, detail, and slam that feel bigger than the driver count suggests, making music and film scores straight-up addictive.

Technical notes matter here. Nominal impedance is a weirdly low ~6Ω, so source pairing can swing results; the set scales and sounds happiest on robust gear that can keep low-impedance loads stable. Despite the armature array, coherency stays intact, dynamics hit harder than expected, and volume headroom invites goosebumps. It’s not a “bass monster,” yet the sub-bass authority and lively treble make it exciting rather than polite, with imaging that feels wide and tactile.

Ergonomics are the gripe list: the short nozzle can challenge seal and the premium cable lacks a formed ear hook, encouraging twist and loosening—tip rolling (even reversed-orientation tricks) helps. Build is flashy—carbon-fiber shell, red inlays, metal case that’s too hefty for travel. Pricing sits around $1,500 (or $1,700 with 8-wire cable); for sheer fun, impact, and best-in-brand performance, the value argument holds. For all-day softness, something like Twilight stays comfier; for movies, big scores, and “wow” sessions, Crimson feels like a must-grab and arguably the best Symphonium to date.


Z-Reviews original ranking

Z-Reviews Youtube Channel

Reviewed by: Jays Audio

Jays Audio 9 Reviewer Score
S Tuning
S Tech
U-shaped/Slight V/W Shaped. Energetic treble. Great tech. Fun signature.

Jays Audio original ranking

Jays Audio Youtube Channel

Reviewed by: Nymz

Nymz 8.5 Reviewer Score
A+ Tuning
S- Tech
Great bass, holographic stage and top of the shelf dynamics. Probably my favourite rendition of a W-shaped tuning to this date. Treble might be spicy for some, but using Divinus Velvets (stock black) seem to help a lot.

Nymz original ranking

Nymz Website

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

Reviewed by: Shuwa-T

Shuwa-T 8.4 Reviewer Score
A+ Tuning
S- Tech
The bassier Helios with no sacrifices to clarity

Shuwa-T original ranking

Shuwa-T Website

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

Reviewed by: Precogvision

Precogvision 8 Reviewer Score
A+ Tuning
A+ Tech
Colored tonality done correctly with incredible bass and dynamics. Upper-treble can be slightly too zingy depending on source.

Precogvision original ranking

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

Reviewed by: Smirk Audio

Smirk Audio 7.9 Reviewer Score
A Tuning
A+ Tech
Excellent bass, dynamics, and resolution. Very large soundstage with great imaging. Mid/upper-treble may be too elevated for some.

Smirk Audio original ranking

Smirk Audio Head-Fi Profile

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

Reviewed by: Jaytiss

Jaytiss 7.8 Reviewer Score
B+ Tuning
A- Tech
Suffers from BA bass, and super Zingie Treble.

Jaytiss original ranking

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

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