Over-Ear
Abyss Diana V2
68Good
$2995
Full review dataAbyss Diana V2 vs STAX SR-009D: which should you buy?
On aggregated review scores the STAX SR-009D 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-009D - Outstanding overall at around $2640.
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.
Abyss Diana V2
Sound7.5
Value5.0
STAX SR-009D
Sound9.5
Value5.5
Specifications
| Spec | Abyss Diana V2 | STAX SR-009D |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $2995 | $2640 |
| HearWiki score | 68 / 100 · Good | 88 / 100 · Outstanding |
| Released | 2019 | 2024 |
| Audio | ||
| Driver | planar | push-pull electrostatic circular sound element |
| Driver size | 63 mm | - |
| Drivers per side | 1 | 2 |
| Frequency response | 7 Hz - 28 kHz | 5Hz-42kHz |
| Impedance | 42 Ω | 145000 Ω |
| Sensitivity | 91 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 | 330 g | 594 g |
| USB-C | - | No |
| Balanced connection | Yes | - |
What reviewers said
Abyss Diana V2
The Abyss Diana V2 is a premium planar magnetic headphone that packs a large 63mm driver into a surprisingly lightweight and portable frame. Its sound is characterized as natural, rich, and forgiving, though it demands quality amplification to truly shine. While praised for its build and tonal balance, its high price and measured performance have drawn mixed opinions from reviewers.
- Pro:Compact and lightweight design for a planar
- Pro:Natural, rich, and well-balanced tonal character
- Pro:High-quality build and premium materials
- Con:Requires powerful amplification, not easy to drive
- Con:Premium price may not match measured performance
- Con:Niche luxury appeal limits broad recommendation
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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