Over-Ear
Erzetich Air
55Average
$3260
Full review dataErzetich Air vs STAX SR-X9000: which should you buy?
On aggregated review scores the STAX SR-X9000 comes out ahead with an HearWiki score of 88. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: STAX SR-X9000 - Outstanding overall at around $5050.
Over-Ear
STAX SR-X9000
88Outstanding
$5050
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Erzetich Air
Sound6.0
Value3.0
STAX SR-X9000
Sound9.5
Value5.0
Specifications
| Spec | Erzetich Air | STAX SR-X9000 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $3260 | $5050 |
| HearWiki score | 55 / 100 · Average | 88 / 100 · Outstanding |
| Released | 2020 | 2021 |
| Audio | ||
| Driver | Planar magnetic | electrostatic |
| Drivers per side | - | 2 |
| Frequency response | - | 5Hz-42,000Hz |
| Impedance | 43 Ω | 145000 Ω |
| Wireless | ||
| Multipoint pairing | - | No |
| Features | ||
| Active noise cancelling | - | No |
| Design | ||
| Weight | 740 g | 432 g |
| Model code | Charybdis | - |
What reviewers said
Erzetich Air
The Erzetich Air is a high-end planar magnetic over-ear headphone priced around $3260, designed for wired listening without active noise cancellation. It features a 43-ohm impedance and a substantial 740-gram build, suggesting a focus on audiophile-grade sound quality rather than portability or convenience.
- Pro:Planar magnetic drivers offer detailed, low-distortion sound
- Pro:High-end price point reflects premium materials and construction
- Pro:Wired design ensures consistent, lossless audio transmission
- Con:Heavy 740-gram weight may cause discomfort during long sessions
- Con:No active noise cancellation limits use in noisy environments
- Con:Expensive for most consumers, targeting niche audiophiles only
STAX SR-X9000
The STAX SR-X9000 is a top-tier electrostatic headphone that excels at revealing fine detail, ambient cues, and instrumental nuance, delivering an exceptionally transparent and spacious soundstage. It offers outstanding speed, transient response, and realism, making it ideal for classical and spatially demanding music. However, it requires a dedicated energizer/driver unit, pushing the total system cost far beyond the already steep headphone price.
- Pro:Exceptional detail retrieval and transparency
- Pro:Huge, three-dimensional soundstage with precise imaging
- Pro:Fast transient response and realistic timbre
- Con:Requires separate electrostatic driver unit
- Con:Very high total system cost
- Con:No noise cancellation or wireless convenience
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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