Symphonium Helios and ThieAudio Prestige LTD use 4BA and 1DD+4BA+4EST driver setups respectively. Symphonium Helios costs $1,100 while ThieAudio Prestige LTD costs $1,300. ThieAudio Prestige LTD is $200 more expensive. ThieAudio Prestige LTD holds a slight 0.4-point edge in reviewer scores (7.9 vs 8.3). ThieAudio Prestige LTD has better bass with a 0.5-point edge, Symphonium Helios has better treble with a 0.8-point edge, Symphonium Helios has significantly better dynamics with a 1.3-point edge, Symphonium Helios has better details with a 0.8-point edge and Symphonium Helios has slightly better imaging with a 0.3-point edge.
Insights
Metric | Symphonium Helios | ThieAudio Prestige LTD |
---|---|---|
Bass | 7 | 7.5 |
Mids | 7.9 | 7.8 |
Treble | 8.6 | 7.8 |
Details | 8.1 | 7.3 |
Soundstage | 8 | 8 |
Imaging | 7.8 | 7.5 |
Dynamics | 7.5 | 6.3 |
Tonality | 7.8 | 7.8 |
Technicalities | 7.8 | 7.8 |
Symphonium Helios Aggregated Review Score
Average Reviewer Scores
ThieAudio Prestige LTD Aggregated Review Score
Average Reviewer Scores
Symphonium Helios Details
Driver Configuration: 4BA
Tuning Type: bass-boosted neutral
Brand: Symphonium Top Symphonium IEMs
Price (Msrp): $1,100
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ThieAudio Prestige LTD Details
Driver Configuration: 1DD+4BA+4EST
Tuning Type: n/a
Brand: ThieAudio Top ThieAudio IEMs
Price (Msrp): $1,300
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Symphonium Helios User Review Score
Average User Scores
Average User Score: n/a
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ThieAudio Prestige LTD User Review Score
Average User Scores
Average User Score: n/a
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Symphonium Helios Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.8Gaming Grade
B+ThieAudio Prestige LTD Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.8Gaming Grade
B+Symphonium Helios 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.
ThieAudio Prestige LTD 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.
Symphonium Helios Reviews
Clean-sounding monitor with great bass decay Occasional splashy cymbals due to the treble extension
Exceptional treble with solid bass. Great techs. Some may find the midrange a bit clinical. Fit will be a dealbreaker to some. Cons: Poor fit.
Top tier clarity and great technicalities, other than a hint of BA timbre plasticness to it. Mid-bass recession is the con in the tuning, turning it into a dry IEM. Top performer nonetheless.
Great technicalities. Lacking that last leg of refinement in terms of coherency. Precogvision Youtube Channel
check links for more info: Crin Youtube Channel
ThieAudio Prestige LTD Reviews
Clean and natural signature with treble emphasis. LOTS of details with airy treble without going overboard (better treble extension vs MK2/MK3). Bass is not as impactful versus MK3 but has better separation. Overall a technical monster, but can be a bit dry due to less mid-bass. Vocals are further vs MK3 and MK2 (not as forward), giving it that open sense of space. MK2 still the best for vocals, but LTD is an endgame all-rounder. Jays Audio Youtube Channel
check links for more info:Bad Guy Good Audio original ranking
Bad Guy Good Audio Youtube Channel
The unit I reviewed had wonky bass, expect this to change if I review a unit with proper bass. Jaytiss Youtube Channel
A much better implementation than the Prestige OG
check links for more info:
The best Thieaudio I've heard to date. Very close tonality to the Mk3, but with better technical performance, especially in the dynamics and stage departments.
Symphonium Helios User Reviews
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