Over-Ear
Sivga SV351
Not yet scored
$1649
Full review dataSivga SV351 vs STAX SR-009D: which should you buy?
Specs, scores and condensed review verdicts for the Sivga SV351 vs STAX SR-009D, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Over-Ear
STAX SR-009D
88Outstanding
$2640
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Sivga SV351
No sub-scores yet - not enough rated reviews.
STAX SR-009D
Sound9.5
Value5.5
Specifications
| Spec | Sivga SV351 | STAX SR-009D |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $1649 | $2640 |
| HearWiki score | Not scored | 88 / 100 · Outstanding |
| Released | 2024 | 2024 |
| Audio | ||
| Driver | 50mm dynamic driver | push-pull electrostatic circular sound element |
| Drivers per side | - | 2 |
| Frequency response | - | 5Hz-42kHz |
| Impedance | 32 Ω | 145000 Ω |
| Wireless | ||
| Bluetooth | - | none |
| Multipoint pairing | - | No |
| Battery | ||
| Wireless charging | - | No |
| Features | ||
| Active noise cancelling | - | No |
| ANC type | - | none |
| Transparency mode | - | No |
| Companion app | - | No |
| Custom EQ | - | No |
| Wear detection | - | No |
| Design | ||
| Weight | 275 g | 594 g |
| USB-C | - | No |
| Model code | Robin SV021 | - |
What reviewers said
Sivga SV351
The Sivga SV351 is a premium over-ear headphone that pairs a wooden enclosure with a custom 50mm dynamic driver to deliver a well-rounded sound profile, emphasizing rich lows and clear treble. Its lightweight 275g build and 32-ohm impedance make it easy to drive from a variety of sources, while the wired-only connection and detachable cable appeal to purists. Designed for comfort, it promises a pressure-free fit during extended listening sessions.
- Pro:Balanced sound with deep bass and crisp highs
- Pro:Lightweight and comfortable for long sessions
- Pro:Low impedance makes it easy to power
- Con:No active noise cancellation
- Con:Wired-only design limits portability
- Con:Pricey for a non-wireless model
STAX SR-009D
The STAX SR-009D is a premium electrostatic over-ear headphone that pushes the boundaries of high-fidelity audio with an exceptionally wide frequency response and transparent, detailed sound. Its open-back design and push-pull driver technology deliver a refined, airy presentation, but it demands a dedicated amplifier and a significant investment. This is a statement piece for audiophiles seeking the utmost in technical performance, not a casual listening device.
- Pro:Exceptional clarity and detail retrieval
- Pro:Very wide frequency range (5Hz-42kHz)
- Pro:Premium build quality with detachable cable
- Con:Requires specialized electrostatic amplifier
- Con:Very high price point
- Con:Open-back design leaks sound and offers no isolation
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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