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Sennheiser HD 400 vs Sony WH-CH520: 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.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Sennheiser HD 400
Sound8.5
Value8.0
Sony WH-CH520
Sound7.0
Battery9.0
Value8.0

Specifications

Specification comparison of Sennheiser HD 400 vs Sony WH-CH520
SpecSennheiser HD 400Sony WH-CH520
TypeOver-EarOver-Ear
Price (USD)$77$59
HearWiki score82 / 100 · Great72 / 100 · Good
Released-2023
Audio
DriverSennheiser dynamic drivers11.82 in
Driver size40 mm30 mm
Drivers per side1-
Frequency response18Hz-20kHz20Hz-20kHz
Impedance120 Ω-
Wireless
Bluetooth-5.2
Bluetooth version-5.2
Codecs-SBC, AAC
Multipoint pairingNoYes
Wireless range-10 m
Battery
Battery life-50 h
Full charge time-180 min
Quick charge-3 min = ?
Wireless chargingNoNo
Features
Active noise cancellingNoNo
ANC type-none
Transparency mode-No
Companion app-No
Custom EQ-No
Wear detection-No
Controlsbuttonsbuttons
Voice assistant-supported
Design
Weight240 g147 g
Water resistancenonenone
USB-CYesYes
Calls
Microphones1-

What reviewers said

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

Sony WH-CH520

The Sony WH-CH520 is a budget-friendly wireless headphone that prioritizes long battery life and reliable Bluetooth performance. While it lacks active noise cancellation and premium features, it delivers a decent, neutral sound that suits everyday listening. Its lightweight design and multipoint pairing make it a practical choice for those seeking a simple, affordable headset.

  • Pro:Exceptional 40-hour battery life
  • Pro:Very lightweight and comfortable for extended wear
  • Pro:Multipoint Bluetooth pairing for easy switching
  • Con:No active noise cancellation
  • Con:Limited to SBC and AAC codecs
  • Con:No wired connection option

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

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