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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.

AKG K550 MKII

No sub-scores yet - not enough rated reviews.

Sennheiser HD 400
Sound8.5
Value8.0

Specifications

Specification comparison of AKG K550 MKII vs Sennheiser HD 400
SpecAKG K550 MKIISennheiser HD 400
TypeOver-EarOver-Ear
Price (USD)$70$77
HearWiki scoreNot scored82 / 100 · Great
Released2017-
Audio
DriverdynamicSennheiser dynamic drivers
Driver size50 mm40 mm
Drivers per side-1
Frequency response12Hz-28kHz18Hz-20kHz
Impedance32 Ω120 Ω
Sensitivity99 dB/mW-
Wireless
Multipoint pairing-No
Battery
Wireless charging-No
Features
Active noise cancelling-No
Controlsnonebuttons
Design
Weight305 g240 g
Water resistance-none
USB-CNoYes
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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