Over-Ear
STAX SR-009D
88Outstanding
$2640
Full review dataSTAX SR-009D vs ZMF Atrium: which should you buy?
Specs, scores and condensed review verdicts for the STAX SR-009D vs ZMF Atrium, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Over-Ear
ZMF Atrium
Not yet scored
$2500
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
STAX SR-009D
Sound9.5
Value5.5
ZMF Atrium
No sub-scores yet - not enough rated reviews.
Specifications
| Spec | STAX SR-009D | ZMF Atrium |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $2640 | $2500 |
| HearWiki score | 88 / 100 · Outstanding | Not scored |
| Released | 2024 | 2022 |
| Audio | ||
| Driver | push-pull electrostatic circular sound element | dynamic |
| Driver size | - | 50 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 5Hz-42kHz | 10Hz-25kHz |
| Impedance | 145000 Ω | 300 Ω |
| Sensitivity | - | 96 dB/mW |
| 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 | 594 g | 490 g |
| USB-C | No | No |
| Balanced connection | - | Yes |
What reviewers said
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
ZMF Atrium
No summary yet - we haven't aggregated enough reviews.
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
Compare something else
Swap either side out, or start again from the picker.