AKG K550 MKII vs Sennheiser HD 400: which should you buy?
Specs, scores and condensed review verdicts for the AKG K550 MKII vs Sennheiser HD 400, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Score breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
No sub-scores yet - not enough rated reviews.
Specifications
| Spec | AKG K550 MKII | Sennheiser HD 400 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $70 | $77 |
| HearWiki score | Not scored | 82 / 100 · Great |
| Released | 2017 | - |
| Audio | ||
| Driver | dynamic | Sennheiser dynamic drivers |
| Driver size | 50 mm | 40 mm |
| Drivers per side | - | 1 |
| Frequency response | 12Hz-28kHz | 18Hz-20kHz |
| Impedance | 32 Ω | 120 Ω |
| Sensitivity | 99 dB/mW | - |
| Wireless | ||
| Multipoint pairing | - | No |
| Battery | ||
| Wireless charging | - | No |
| Features | ||
| Active noise cancelling | - | No |
| Controls | none | buttons |
| Design | ||
| Weight | 305 g | 240 g |
| Water resistance | - | none |
| USB-C | No | Yes |
| Calls | ||
| Microphones | - | 1 |
What reviewers said
AKG K550 MKII
The AKG K550 MKII is a wired, over-ear headphone focused on delivering accurate, high-fidelity sound without extra frills. Its large 50mm dynamic drivers and wide frequency response aim to provide a detailed listening experience, while the lightweight build and lack of controls keep things straightforward for purists. Priced affordably, it's a solid option for those who prioritize sound quality over features like noise cancellation or wireless convenience.
- Pro:Clear, detailed sound with wide frequency range
- Pro:Lightweight and comfortable for long sessions
- Pro:Good value for wired audiophile-style listening
- Con:No noise cancellation or wireless support
- Con:Lacks built-in controls or microphone
- Con:Cable may feel dated compared to modern designs
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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