Symphonium Crimson VS Unique Melody Maven II

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

Symphonium Crimson and Unique Melody Maven II use 4BA and 2DD+4BA+4EST driver setups respectively. Symphonium Crimson costs $1,500 while Unique Melody Maven II costs $1,799. Unique Melody Maven II is $299 more expensive. Symphonium Crimson holds a clear 0.6-point edge in reviewer scores (8.4 vs 7.8). Unique Melody Maven II carries a user score of 8.2. Symphonium Crimson has better bass with a 0.6-point edge, Symphonium Crimson has significantly better mids with a 1.2-point edge, Symphonium Crimson has significantly better treble with a 1.3-point edge, Symphonium Crimson has significantly better soundstage with a 3.3-point edge, Symphonium Crimson has better details with a 0.6-point edge and Symphonium Crimson has significantly better imaging with a 1-point edge.

Insights

Metric Symphonium Crimson Unique Melody Maven II
Bass 8.6 8
Mids 7.7 6.5
Treble 7.5 6.3
Details 8.1 7.5
Soundstage 8.3 5
Imaging 8.5 7.5
Dynamics 7 7
Tonality 8.1 7.6
Technicalities 8.3 7.7

Symphonium Crimson Aggregated Review Score

Average Reviewer Scores

Average Reviewer Score:

8.4

Very Positive


Unique Melody Maven II Aggregated Review Score

Average Reviewer Scores

Average Reviewer Score:

7.8

Strongly Favorable


Reviews Comparison

Symphonium Crimson 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-

Unique Melody Maven II reviewed by Smirk Audio

Smirk Audio 7.7 Reviewer Score
A Tuning
A Tech
check links for more info:

Smirk Audio original ranking

Smirk Audio Head-Fi Profile

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

Symphonium Crimson 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+

Unique Melody Maven II reviewed by Jaytiss

Jaytiss 6 Reviewer Score
C+ Tuning
C+ Tech
I can see how others might like.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: C+ Treble: C+ Dynamics: B Soundstage: C+

Symphonium Crimson (more reviews)

Symphonium Crimson reviewed by Z-Reviews

Z-Reviews 9.5 * score rescaled + normalized
Youtube Video Summary

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

Symphonium Crimson 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

Symphonium Crimson 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

Symphonium Crimson 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-

Symphonium Crimson 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+

Symphonium Crimson reviewed by Head-Fi.org

Head-Fi.org 8.3 * score rescaled + normalized
29 community members have rated the Symphonium Crimson at an average of 4.4/5 on Head-Fi. Overall sentiment: Excellent.

URL to full Review

Head-Fi.org original ranking

Unique Melody Maven II (more reviews)

Unique Melody Maven II reviewed by Web Search

uses AI-Search to turn user, reddit and head-fi reviews into clear, concise summaries.
Web Search 9 Reviewer Score
S Tuning
S Tech

The Unique Melody Maven II delivers a balanced yet colored sound signature that excels across diverse genres. Its elevated bass offers deep rumble and punchy mid-bass without bleeding into the mids, while the boosted upper treble provides air and detail retrieval without harshness—though the stock cable can introduce graininess, resolved via aftermarket options . A subtle lower-mid dip prevents vocal shoutiness, maintaining warmth and coherence, while the expansive soundstage and precise imaging create an immersive listening experience .

Comfort and build quality are highlights, with aerospace-grade titanium shells that feel lightweight yet durable, though cold temperatures can cause initial discomfort during insertion . The long nozzles and crescent-moon faceplate design facilitate a secure fit, but tip-rolling is essential as the included Azla Xelastec tips max out at medium size and stock silicone tips seal poorly . Some users report driver flex due to insufficient venting in the faceplate, though isolation is excellent with optimal tips .

While not a basshead IEM, the proprietary dual dynamic drivers (9.8mm + 6.9mm) deliver textured lows that complement its technical prowess, making it a compelling all-rounder at its price . The sensitive nature rewards cable experimentation, with options like Astral Acoustics Mars enhancing sub-bass or Lavricables Master Silver boosting soundstage . Despite minor accessory shortcomings, its cohesive tuning and titanium craftsmanship justify its position as a standout hybrid .


Symphonium Crimson 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!

Unique Melody Maven II User Review Score

Average User Scores

Average User Score:

Based on 1 user reviews

8.2

Very Positive

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

7.2

Gaming Grade

A-

Unique Melody Maven II Gaming Score

Gaming Score & Grade

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

Gaming Score

6.1

Gaming Grade

B

Symphonium Crimson Scorings

Average Technical & Tuning Grades

Average Tunign Grade

A+
  • Tuning feels refined, blending frequencies with convincing realism and engagement. Transitions between registers feel effortless.

Average Technical Grade

A+
  • It sounds refined and controlled, keeping instruments neatly separated with immersive staging. Busy arrangements remain neatly organized.
Bass S-
Expect a gripping low-end presence that marries clarity with visceral impact. Dynamic swings land with thrilling force.
Mids A
The mid band shines with organic tone and finely rendered textures. Long sessions remain fatigue-free.
Treble A
Highs feel superbly executed, revealing micro-detail without hint of sibilance. Highs stay smooth even at volume.
Dynamics A-
Dynamic performance is excellent, combining sharp transients with strong contrast. Transients snap with authority.
Soundstage A+
A panoramic, wraparound presentation suspends each element in a convincingly airy bubble. Instruments float with pinpoint spacing.
Details A+
Exceptional resolution that uncovers the deepest layers while maintaining natural timbre. It uncovers hidden layers with ease.
Imaging S-
Even dense mixes remain locked in place, reinforcing the illusion of physical performers. The stage remains stable regardless of complexity.
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 Maven II Scorings

Average Technical & Tuning Grades

Average Tunign Grade

A
  • It presents a smooth, well-integrated tonal balance that plays nicely with many styles. It maintains natural timbre across the range.

Average Technical Grade

A
  • It delivers a confident technical showing with defined layers and satisfying clarity. You can follow backing vocals with relative ease.
Bass A+
Bass performance is excellent, combining depth with rock-solid control. Basslines feel tactile and enveloping.
Mids B+
It offers engaging mid frequencies with pleasing clarity and layering. Details emerge without becoming harsh.
Treble B
Treble response is good, delivering clarity and sparkle without fatigue. Hi-hats sound lively without sting.
Dynamics A-
Expect excellent punch and micro-detail that render rhythmic shifts effortlessly. It keeps up with complex rhythmic swings.
Soundstage C+
You start to perceive distinct rows of players even if the ceiling still feels low. Layering is present but still modest.
Details A
Excellent detail retrieval that resolves intricacies without tipping into clinical territory. Tiny nuances jump out effortlessly.
Imaging A
Depth mapping feels natural and accurate, supporting convincing immersion. Depth mapping feels precise and natural.
Gaming B
Decent spatial awareness for fundamental positioning. Creates satisfying atmosphere in story-driven games while handling basic directional cues. Bad value-to-cost for gaming purpose - not recommended

Symphonium Crimson User Reviews

Example User Posted on ...
0.0

"This is an example review"

Pros
  • Example pro 1
  • Example pro 2
Cons
  • Example con 1
  • Example con 2
No User-Reviews Yet

Share your experience and build your personal ranking list.

You need to be signed in to write your own review

Unique Melody Maven II User Reviews

Share your experience and build your personal ranking list.

You need to be signed in to write your own review
M Makavelian
8.2

One of the best sets fitting my neutral warm preference, period.

Tuning: A+ Tech: S- Bass: A+ Mids: A+ Treble: A Soundstage: S-
Pros
Timbre and detail retrieval. Pinna gain elevation is ideal for my HRTF.
Cons
Metallic tinge to treble, due to elevation around 6k - a region I'm sensitive and experience canal resonance at.

Find your next IEM:

IEM Finder Quiz

new
Use this quiz and answer a few questions to get your individual IEM recommendation list
(1/3) How much are you willing to spend on the IEM?
(2/3) Which sound characteristics are particularly important to you?
(3/3) Which tuning do you prefer?
You can select multiple options.
Buy

Footer