Over-Ear
STAX SR-007S
84Great
$2390
Full review dataSTAX SR-007S vs ZMF Tessidera: which should you buy?
On aggregated review scores the ZMF Tessidera comes out ahead with an HearWiki score of 88. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: ZMF Tessidera - Outstanding overall at around $2500.
Over-Ear
ZMF Tessidera
88Outstanding
$2500
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
STAX SR-007S
Sound9.0
Value6.0
ZMF Tessidera
Sound9.2
Value7.5
Specifications
| Spec | STAX SR-007S | ZMF Tessidera |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $2390 | $2500 |
| HearWiki score | 84 / 100 · Great | 88 / 100 · Outstanding |
| Released | 2025 | 2026 |
| Audio | ||
| Driver | electrostatic | Planar magnetic with 1-micron diaphragm |
| Driver size | - | 80 mm |
| Drivers per side | 2 | 2 |
| Frequency response | 6Hz–41kHz | 20Hz-20kHz |
| Impedance | 145000 Ω | 35 Ω |
| Sensitivity | 101 dB/mW | 92 dB/mW |
| Wireless | ||
| 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 | - |
| Controls | none | - |
| Design | ||
| Weight | 430 g | 570 g |
| Detachable cable | Yes | - |
| USB-C | No | - |
What reviewers said
STAX SR-007S
The STAX SR-007S is a premium electrostatic headphone that refines the brand's classic open-back design with updated internals and comfort-focused tweaks. It delivers a spacious, highly detailed soundstage with warm, deep bass and smooth highs, making it a thoughtful evolution rather than a complete overhaul. Priced around $2200, it's built for audiophiles seeking a wired, high-end listening experience without digital extras.
- Pro:Exceptional detail retrieval and airy, expansive soundstage
- Pro:Warm, well-extended bass with clear, non-fatiguing highs
- Pro:Improved comfort via redesigned earpads and reduced earcup resonance
- Con:Requires a dedicated electrostatic amplifier, adding significant cost
- Con:No noise cancellation, wireless features, or app support
- Con:Very high impedance (145k ohms) limits source compatibility
ZMF Tessidera
The Tessidera is a premium open-back planar headphone that channels ZMF's signature warm, musical tuning into a planar driver format. It delivers a smooth, full-bodied sound with particularly rich vocals and natural timbre, all while being relatively easy to drive for a high-end model. The build is solid overall, though the stock grill finish shows minor cosmetic imperfections.
- Pro:Smooth, full-bodied tuning with rich vocals
- Pro:Excellent timbre and natural instrument reproduction
- Pro:Relatively easy to drive despite large 80mm drivers
- Con:Mid-forward balance can vary with amplifier pairing
- Con:Minor cosmetic roughness on the stock grill
- Con:Heavy at 570g, requiring a sturdy headphone stand
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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