Sony IER Z1R and Symphonium Crimson use 2DD+1BA and 4BA driver setups respectively. Sony IER Z1R costs $1,700 while Symphonium Crimson costs $1,500. Sony IER Z1R is $200 more expensive. Symphonium Crimson holds a slight 0.3-point edge in reviewer scores (8.2 vs 8.4). Sony IER Z1R has better bass with a 0.9-point edge, Symphonium Crimson has better mids with a 0.9-point edge, Sony IER Z1R has slightly better treble with a 0.3-point edge, Sony IER Z1R has slightly better dynamics with a 0.3-point edge, Symphonium Crimson has slightly better soundstage with a 0.3-point edge and Symphonium Crimson has better details with a 0.8-point edge.
Insights
Metric | Sony IER Z1R | Symphonium Crimson |
---|---|---|
Bass | 9.5 | 8.6 |
Mids | 6.8 | 7.7 |
Treble | 7.8 | 7.5 |
Details | 7.4 | 8.1 |
Soundstage | 8 | 8.3 |
Imaging | 8.6 | 8.5 |
Dynamics | 7.3 | 7 |
Gaming capabilities | 6.6 | 7.1 |
Sony IER Z1R Aggregated Review Score
Sony IER Z1R Average Reviewer Scores
Symphonium Crimson Aggregated Review Score
Symphonium Crimson Average Reviewer Scores
Sony IER Z1R Details
Driver Configuration: 2DD+1BA
Tuning Type: V-Shaped
Price (Msrp): $1,700
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Symphonium Crimson Details
Driver Configuration: 4BA
Tuning Type: U-Shaped
Price (Msrp): $1,500
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Sony IER Z1R User Review Score
Sony IER Z1R Average User Scores
Average User Score: n/a
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Symphonium Crimson User Review Score
Symphonium Crimson Average User Scores
Average User Score: n/a
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Sony IER Z1R Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.6Gaming 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
7.1Gaming Grade
A-Sony IER Z1R 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
A+- Very competent with articulate presentation. Well-defined layers and precise imaging. Soundstage is immersive and handles dynamics well.
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.
Sony IER Z1R Reviews
Sony IER Z1R reviewed by: Smirk Audio
Visceral, hard-hitting bass, sparkly treble, and a large, spherical soundstage with impressive height. Fit may pose a challenge for many. Cons: Poor fit.
Sony IER Z1R reviewed by: Super* Review
check links for more info:Super* Review original ranking
Super* Review Youtube Channel
Sony IER Z1R reviewed by: Jays Audio
Best of the best in most areas, but vocals and mids can be thin due to fit issues. Insane bass texture/detail and HUGE soundstage. One of the best trebles I've heard. Jays Audio Youtube Channel
Sony IER Z1R reviewed by: Tim Tuned
Incredible extensions on both ends Lower midrange Tim Tuned Youtube Channel
Sony IER Z1R reviewed by: Precogvision
Top-tier bass, treble, and soundstage height and width. I don't approve of the midrange these days. Precogvision Youtube Channel
Sony IER Z1R reviewed by: Crin
Extended yet natural treble, realistic sub-bass focus and spacious imaging capabilities. Crin Youtube Channel
Sony IER Z1R reviewed by: Shuwa-T
Fun sounding without going overboard with the subbass, organic timbre The fit is atrocious, treble can get spicy on hi-hats
Sony IER Z1R reviewed by: Nymz
Recessed mids I can't approved but best bass tactility I've heard. One of the best stage I've heard. Top of the class treble. Fit is a massive problem for most - one of those that needs to be demoed before pressing checkout.
Symphonium Crimson Reviews
Symphonium Crimson reviewed by: Z-Reviews
Symphonium Crimson reviewed by: Precogvision
Colored tonality done correctly with incredible bass and dynamics. Upper-treble can be slightly too zingy depending on source. Precogvision Youtube Channel
Symphonium Crimson reviewed by: Smirk Audio
Excellent bass, dynamics, and resolution. Very large soundstage with great imaging. Mid/upper-treble may be too elevated for some.
Symphonium Crimson reviewed by: Jays Audio
U-shaped/Slight V/W Shaped. Energetic treble. Great tech. Fun signature. Jays Audio Youtube Channel
Symphonium Crimson reviewed by: Jaytiss
Suffers from BA bass, and super Zingie Treble. Jaytiss Youtube Channel
Symphonium Crimson reviewed by: Shuwa-T
The bassier Helios with no sacrifices to clarity
Symphonium Crimson reviewed by: Nymz
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.
Sony IER Z1R User Reviews
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