Over-Ear
Audio-Technica M30x
66Good
$79
Full review dataAudio-Technica M30x vs Sennheiser HD 400: which should you buy?
On aggregated review scores the Sennheiser HD 400 comes out ahead with an HearWiki score of 82. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Sennheiser HD 400 - Great overall at around $77.
Over-Ear
Sennheiser HD 400
82Great
$77
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Audio-Technica M30x
Sound7.0
Value7.0
Sennheiser HD 400
Sound8.5
Value8.0
Specifications
| Spec | Audio-Technica M30x | Sennheiser HD 400 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $79 | $77 |
| HearWiki score | 66 / 100 · Good | 82 / 100 · Great |
| Released | - | - |
| Audio | ||
| Driver | dynamic | Sennheiser dynamic drivers |
| Driver size | 40 mm | 40 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 15Hz-22kHz | 18Hz-20kHz |
| Impedance | 47 Ω | 120 Ω |
| Sensitivity | 96 dB/mW | - |
| Wireless | ||
| Multipoint pairing | No | No |
| Battery | ||
| Wireless charging | - | No |
| Features | ||
| Active noise cancelling | No | No |
| Controls | - | buttons |
| Design | ||
| Weight | 190 g | 240 g |
| Water resistance | - | none |
| Foldable | Yes | - |
| Detachable cable | No | - |
| USB-C | No | Yes |
| Calls | ||
| Microphones | - | 1 |
What reviewers said
Audio-Technica M30x
The Audio-Technica ATH-M30x is a wired, budget-friendly over-ear headphone aimed at studio use, delivering a fairly accurate and balanced sound profile that punches above its price point. Its lightweight, foldable build offers decent comfort and durability for the cost, though it lacks modern conveniences like an inline remote, detachable cable, or any form of noise isolation, making it best suited for quiet, stationary listening rather than travel or exercise.
- Pro:Accurate, neutral sound for the price
- Pro:Lightweight and foldable for portability
- Pro:Sturdy build quality for budget class
- Con:No detachable cable or inline controls
- Con:Weak passive isolation for noisy settings
- Con:Average comfort and stability for long sessions
Sennheiser HD 400
These over-ear Sennheiser headphones are built around a neutral, open-back design aimed at studio work, delivering a wide soundstage and detailed, transparent audio for critical listening. They are lightweight and comfortable for long sessions, with a high-impedance driver setup that helps maintain low distortion, though they lack isolation and come without a carry case. Wired connectivity via USB-C and detachable cables adds versatility, but the open-back nature means sound leaks both ways.
- Pro:Accurate, transparent sound with wide soundstage
- Pro:Lightweight and comfortable for extended wear
- Pro:Detachable cables and USB-C connectivity
- Con:No included carry case or spare ear pads
- Con:Open-back design leaks sound and offers no isolation
- Con:High impedance may require a dedicated amplifier for best results
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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