Over-Ear
Grado Signature S750
82Great
$1695
Full review dataGrado Signature S750 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.
Grado Signature S750
Sound8.5
Value6.5
STAX SR-009D
Sound9.5
Value5.5
Specifications
| Spec | Grado Signature S750 | STAX SR-009D |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $1695 | $2640 |
| HearWiki score | 82 / 100 · Great | 88 / 100 · Outstanding |
| Released | 2025 | 2024 |
| Audio | ||
| Driver | Dynamic | push-pull electrostatic circular sound element |
| Driver size | 50 mm | - |
| Drivers per side | 1 | 2 |
| Frequency response | 6Hz-46kHz | 5Hz-42kHz |
| Impedance | 38 Ω | 145000 Ω |
| Sensitivity | 115 dB/mW | - |
| Wireless | ||
| Bluetooth | - | none |
| Multipoint pairing | No | No |
| Battery | ||
| Wireless charging | No | No |
| Features | ||
| Active noise cancelling | No | No |
| ANC type | none | none |
| Transparency mode | No | No |
| Companion app | No | No |
| Custom EQ | No | No |
| Wear detection | No | No |
| Controls | none | - |
| Voice assistant | none | - |
| Design | ||
| Weight | 460 g | 594 g |
| Water resistance | none | - |
| Foldable | No | - |
| Detachable cable | Yes | - |
| USB-C | No | No |
What reviewers said
Grado Signature S750
The Grado Signature S750 is an open-back, wired over-ear headphone that blends a classic, airy presentation with modern technical detail. Its 50mm dynamic driver delivers a wide, spacious soundstage with strong clarity, though its bright tuning and premium price point may not suit everyone. Build quality is solid and the detachable cable is a practical touch, but comfort and fit remain subjective considerations.
- Pro:Open, airy sound with a wide soundstage
- Pro:Strong technical detail and clarity
- Pro:Solid build quality with detachable cable
- Con:Bright tuning may be fatiguing for some
- Con:Comfort and fit can be divisive
- Con:High price point
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.
Compare something else
Swap either side out, or start again from the picker.