Hidition Viento VS Symphonium Helios
IEM Comparison: Expert & Community Scores Side-by-Side
Hidition Viento and Symphonium Helios are 4BA in-ear monitors. Hidition Viento costs $950 while Symphonium Helios costs $1,100. Symphonium Helios is $150 more expensive. Symphonium Helios holds a slight 0.1-point edge in reviewer scores (7.9 vs 8). Symphonium Helios has better bass with a 0.5-point edge, Symphonium Helios has significantly better mids with a 1.3-point edge, Symphonium Helios has significantly better treble with a 2.2-point edge, Symphonium Helios has slightly better dynamics with a 0.3-point edge, Symphonium Helios has significantly better soundstage with a 1.4-point edge, Symphonium Helios has significantly better details with a 1-point edge and Symphonium Helios has significantly better imaging with a 1.2-point edge.
Insights
| Metric | Hidition Viento | Symphonium Helios |
|---|---|---|
| Bass | 6.5 | 7 |
| Mids | 6.6 | 7.9 |
| Treble | 6.4 | 8.6 |
| Details | 7.1 | 8.1 |
| Soundstage | 6.6 | 8 |
| Imaging | 6.6 | 7.8 |
| Dynamics | 7.2 | 7.5 |
| Tonality | 8.5 | 7.8 |
| Technicalities | 7.6 | 7.8 |
Hidition Viento Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
7.9Strongly Favorable
Symphonium Helios Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8Strongly Favorable
Reviews Comparison
Hidition Viento reviewed by Yifang
8.5
Reviewer Score
Symphonium Helios reviewed by Yifang
8
Reviewer Score
Hidition Viento reviewed by Crin
8.5
Reviewer Score
Youtube Video Summary
Hidition is framed as an OG IEM house (founded 2003), and the Viento is praised as the rare decade-old set that still sits in the top tier. Released in the height of the driver wars, it rejected driver-count inflation for a 4-driver, 4-way crossover architecture—each BA handling its own band: sub-bass, lower mids, upper mids, treble. The result is “efficiency” engineering that prioritizes clean division of labor over headcount, following the neutral lineage of the NT6 while modernizing with a subtle sub-bass lift.
The Viento’s two-switch system is highlighted as unusually precise: one switch for sub-bass, one for lower mids, yielding four distinct tunings—A (neutral), B (sub-bass boost), C (lower-mid warmth), and D (both). It’s noted that the custom shell outperforms the universal demo (which can sound a bit bright/shouty due to fit depth), making this one of the few customs actively recommended. In 2023 it sits at S- on the ranking list: versatile across configs, close to an IEF-neutral target, and—relative to today’s market—“cheap” at about $1,000 from Zeppelin & Co. Overall, the Viento is portrayed as lightning in a bottle: enduring tuning, elegant engineering, and real-world usability that keeps it in regular rotation years after release.
Crin Youtube Channel
Symphonium Helios reviewed by Crin
7.5
Reviewer Score
Hidition Viento reviewed by Precogvision
6.6
Reviewer Score
Youtube Video Summary
Hidition Viento B aims for a reference-lean balance: a leveled sub-bass shelf to around 200 Hz, a lean lower midrange, and very emphasized upper-mids with a notable mid-treble lift. On paper it graphs cleanly, but in practice the contrast thins out note weight and exposes a ringy decay on upper harmonics, pushing cymbals and sibilants forward more than natural.
Technicalities are mixed. Microdynamic contrast is the standout, with low-level inflections popping more readily than peers, yet imaging and stage size hover around average for the price. BA timbre remains audible, and the elongated nozzle that mimics a CIEM fit can be uncomfortable unless a deep insertion is possible; the CIEM version is said to mitigate several of these concerns.
Precogvision Youtube Channel
Symphonium Helios reviewed by Precogvision
7.7
Reviewer Score
Youtube Video Summary
Symphonium Helios hits the kilobuck arena with a 4-BA flagship co-developed with Subtonic, priced around $1,100. The unboxing is minimal: a waterproof, aluminum “hockey-puck” case (cool but gritty threading), assorted tips, and a standard 0.78 mm cable without ear guides. The shell is surprisingly large—reportedly to house bigger capacitors and wider tubing for the desired treble extension—and the wide nozzle plus stick-out fit will be the biggest hurdle for many ears. Comfort varies; demoing first is wise.
Sonically, Helios tracks Harman-ish through the lower mids, then diverges for a more relaxed ear-gain and a showpiece treble. Bass is sub-bass focused with near-zero mid-bass, staying impeccably clean of the mids; for BA, it slams impressively—competitive with U12t—though a touch light on texture. Mids read lean/clean (200 Hz dip), while the top end is remarkably linear with huge air; with AZLA SednaEarfit tips it can verge on abrasive, but the included silicone tips smooth things out to a class-leading treble at this price. Technicals are excellent: incisive imaging (even occasional “backwards” cues), strong macro & micro-dynamics, and lively transients; ultimate resolving edges still nod to sets like Annihilator and U12t. Taken as a whole, Helios stands as a top-tier kilobuck pick on sound quality—its fit is the make-or-break.
Precogvision Youtube Channel
Symphonium Helios (more reviews)
Symphonium Helios reviewed by Shuwa-T
8.1
Reviewer Score
Symphonium Helios reviewed by Z-Reviews
8
* score rescaled + normalized
Youtube Video Summary
Positioned as a $1,100 4BA set with a proprietary “sub-woofer” armature, Helios promises consistency via FLAT (Filtered Linear Attenuation Tuning). In practice, the claimed impedance immunity proves fickle: desktop gear can skew the treble and dynamics, and tube amps are a no-go. Performance clicks on the right solid-state portable (e.g., a Violectric unit), where the presentation opens up with striking clarity, tactile microdetail, and pinpoint imaging. The stage doesn’t just spread left–right; there’s convincing presence—sounds pop in and around the head with tidy placement. Low end is tight and clean rather than head-rattling; it accommodates bass, it doesn’t chase it.
Ergonomics dampen the honeymoon. The shell is big and oddly shaped, the stock cable has poor ear retention, and the included tips feel thick and overdamp the voicing. Tip rolling (e.g., Xelastec, foam-hybrids, or Dunu SS) helps restore balance and bass grip, but fit remains fussy. Once settled, Helios delivers a smooth, near-tame signature that’s detailed without harshness—more refinement than fireworks. Verdict: a highly capable, clear and composed monitor for source- and tip-savvy listeners; brilliant when the chain is right, but the overall package—from fit to amp matching—can be annoying enough to test patience.
Z-Reviews Youtube Channel
Symphonium Helios reviewed by Smirk Audio
7.9
Reviewer Score
Symphonium Helios reviewed by Nymz
7.9
Reviewer Score
Symphonium Helios reviewed by Head-Fi.org
8.6
* score rescaled + normalized
Hidition Viento Details
Driver Configuration: 4BA
Tuning Type: Neutral
Brand: Hidition Top Hidition IEMs
Price (Msrp): $950
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Symphonium Helios Details
Driver Configuration: 4BA
Tuning Type: Neutral with Bass Boost
Brand: Symphonium Top Symphonium IEMs
Price (Msrp): $1,100
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Hidition Viento User Review Score
Average User Scores
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Symphonium Helios User Review Score
Average User Scores
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Hidition Viento Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.9Gaming Grade
B+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+Hidition Viento Scorings
Average Technical & Tuning Grades
Average Tunign Grade
S-- Tonal balance reaches a highly refined state, sounding seamless from lows to highs. Everything locks together with satisfying coherence.
Average Technical Grade
A- The balance of resolution and space feels assured, keeping complex passages coherent. Layering is convincing on most studio mixes.
Symphonium Helios Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A- The response is even and composed, lending itself to effortless genre hopping. Voices sit comfortably in the mix.
Average Technical Grade
A- Technical performance is solid, offering clear separation and consistent detail retrieval. There's enough space for instruments to breathe.
Hidition Viento User Reviews
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