Over-Ear
STAX SR-X9000
88Outstanding
$5050
Full review dataSTAX SR-X9000 vs Ultrasone Edition 15: which should you buy?
Specs, scores and condensed review verdicts for the STAX SR-X9000 vs Ultrasone Edition 15, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Over-Ear
Ultrasone Edition 15
Not yet scored
$2999
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
STAX SR-X9000
Sound9.5
Value5.0
Ultrasone Edition 15
No sub-scores yet - not enough rated reviews.
Specifications
| Spec | STAX SR-X9000 | Ultrasone Edition 15 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $5050 | $2999 |
| HearWiki score | 88 / 100 · Outstanding | Not scored |
| Released | 2021 | 2018 |
| Audio | ||
| Driver | electrostatic | GTC (Gold-Titanium-Compound) transducer |
| Driver size | - | 40 mm |
| Drivers per side | 2 | 2 |
| Frequency response | 5Hz-42,000Hz | 5Hz-48kHz |
| Impedance | 145000 Ω | 40 Ω |
| Wireless | ||
| Multipoint pairing | No | - |
| Features | ||
| Active noise cancelling | No | - |
| Design | ||
| Weight | 432 g | 320 g |
| Detachable cable | - | Yes |
| USB-C | - | No |
What reviewers said
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
Ultrasone Edition 15
The Ultrasone Edition 15 is a premium semi-open headphone that blends warm, musical bass with crisp treble via its gold-titanium compound driver. Its cherry wood cups and aluminum frame give it a refined, luxury look, while the detachable LEMO cables add practical flexibility. Designed for audiophiles seeking a rich, engaging sound with high-end build quality, it sits firmly in the upper echelon of over-ear models.
- Pro:Rich, warm bass response
- Pro:Detailed and precise high frequencies
- Pro:Elegant wood and metal construction
- Con:Very expensive price point
- Con:Semi-open design may leak sound
- Con:Requires quality amplification to shine
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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