64 Audio Duo VS Symphonium Crimson
IEM Comparison: Expert & Community Scores Side-by-Side
64 Audio Duo and Symphonium Crimson use 1DD+1BA and 4BA driver setups respectively. 64 Audio Duo costs $1,200 while Symphonium Crimson costs $1,500. Symphonium Crimson is $300 more expensive. Symphonium Crimson holds a decisive 2.4-point edge in reviewer scores (6.1 vs 8.4). Symphonium Crimson has better bass with a 0.6-point edge, Symphonium Crimson has better mids with a 0.7-point edge, Symphonium Crimson has better treble with a 0.5-point edge, Symphonium Crimson has significantly better details with a 3.1-point edge and Symphonium Crimson has significantly better imaging with a 2.5-point edge.
Insights
| Metric | 64 Audio Duo | Symphonium Crimson |
|---|---|---|
| Bass | 8 | 8.6 |
| Mids | 7 | 7.7 |
| Treble | 7 | 7.5 |
| Details | 5 | 8.1 |
| Soundstage | 6.1 | 8.3 |
| Imaging | 6 | 8.5 |
| Dynamics | 7 | 7 |
| Tonality | 6.2 | 8.1 |
| Technicalities | 5.5 | 8.3 |
64 Audio Duo Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
6.1Mixed to Positive
Symphonium Crimson Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.4Very Positive
Reviews Comparison
64 Audio Duo reviewed by Precogvision
6.4
Reviewer Score
Precogvision Youtube Channel
Symphonium Crimson reviewed by Precogvision
8
Reviewer Score
Precogvision Youtube Channel
64 Audio Duo reviewed by Head-Fi.org
8.8
* score rescaled + normalized
Symphonium Crimson reviewed by Head-Fi.org
8.3
* score rescaled + normalized
64 Audio Duo (more reviews)
64 Audio Duo reviewed by Crin
5
Reviewer Score
64 Audio Duo reviewed by Super* Review
4*
* score rescaled + normalized
Symphonium Crimson (more reviews)
Symphonium Crimson reviewed by 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 Youtube Channel
Symphonium Crimson reviewed by Jays Audio
9
Reviewer Score
Symphonium Crimson reviewed by Yifang
8.5
Reviewer Score
Symphonium Crimson reviewed by Nymz
8.5
Reviewer Score
Symphonium Crimson reviewed by Shuwa-T
8.4
Reviewer Score
Symphonium Crimson reviewed by Smirk Audio
7.9
Reviewer Score
Symphonium Crimson reviewed by Jaytiss
7.8
Reviewer Score
Jaytiss Youtube Channel
64 Audio Duo Details
Driver Configuration: 1DD+1BA
Tuning Type: Neutral with Bass Boost
Brand: 64 Audio Top 64 Audio IEMs
Price (Msrp): $1,200
Support our free service! Buying through our affiliate links costs you nothing extra:
Symphonium Crimson Details
Driver Configuration: 4BA
Tuning Type: U-Shaped
Brand: Symphonium Top Symphonium IEMs
Price (Msrp): $1,500
Support our free service! Buying through our affiliate links costs you nothing extra:
64 Audio Duo 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!
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!
64 Audio Duo Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
4.7Gaming Grade
CSymphonium Crimson Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.2Gaming Grade
A-64 Audio Duo Scorings
Average Technical & Tuning Grades
Average Tunign Grade
B- A mostly enjoyable signature keeps things listenable despite a handful of quirks. It handles most playlists without major complaints.
Average Technical Grade
B-- It offers a competent showing, maintaining cohesion on straightforward arrangements. Complex passages start to challenge it, but never derail the show.
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.
64 Audio Duo User Reviews
"This is an example review"
Pros
- Example pro 1
- Example pro 2
Cons
- Example con 1
- Example con 2
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewSymphonium Crimson User Reviews
"This is an example review"
Pros
- Example pro 1
- Example pro 2
Cons
- Example con 1
- Example con 2
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewFind your next IEM:
IEM Finder Quiz
newIEM Comparison Tool
newVS