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Abyss Diana V3 MR (Stealth) 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.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Abyss Diana V3 MR (Stealth)
Sound8.7
Value6.5
STAX SR-009D
Sound9.5
Value5.5

Specifications

Specification comparison of Abyss Diana V3 MR (Stealth) vs STAX SR-009D
SpecAbyss Diana V3 MR (Stealth)STAX SR-009D
TypeOver-EarOver-Ear
Price (USD)$2995$2640
HearWiki score84 / 100 · Great88 / 100 · Outstanding
Released20242024
Audio
Driverplanarpush-pull electrostatic circular sound element
Driver size63 mm-
Drivers per side12
Frequency response5 Hz – 55 kHz5Hz-42kHz
Impedance30 Ω145000 Ω
Sensitivity93 dB/mW-
Wireless
Bluetooth-none
Multipoint pairingNoNo
Battery
Wireless charging-No
Features
Active noise cancellingNoNo
ANC type-none
Transparency mode-No
Companion app-No
Custom EQ-No
Wear detection-No
Voice assistantnone-
Design
Weight2268 g594 g
Detachable cableYes-
USB-C-No
Model codeAbyss Diana MRx-

What reviewers said

Abyss Diana V3 MR (Stealth)

The Diana V3 MR is a premium planar headphone that blends high-end fidelity with a more forgiving, musical tuning, making it one of the most approachable models in its lineup. It offers strong technical performance, including detailed imaging and an expansive soundstage, while remaining relatively easy to drive for its class. Its main trade-offs are comfort-related, with a heavier build and limited padding, plus a proprietary cable system that may limit aftermarket options.

  • Pro:Engaging, smooth sound with excellent bass and treble detail
  • Pro:Wide, holographic soundstage and precise imaging
  • Pro:Easier to drive than many high-end planars, with flexible pairing
  • Con:Comfort can suffer due to limited padding and significant weight
  • Con:Proprietary cable system restricts replacement choices
  • Con:Lacks wireless or noise-canceling features at a premium price

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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