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  3. Hi-X55 vs HD 400 Pro

Austrian Audio Hi-X55 vs Sennheiser HD 400 Pro

What Hi-X55 does better (1) and where HD 400 Pro wins (2) — every spec side by side.

Austrian Audio Hi-X55
Austrian Audio · 2020Hi-X55
1 advantage≈ $270
vs
Sennheiser HD 400 Pro
Sennheiser · 2021HD 400 Pro
2 advantages≈ $230
4.0Noise control & calls4.0

Why is Hi-X55 better than HD 400 Pro?

  1. Lowest frequency5 Hz vs 6 Hz+20%

Why is HD 400 Pro better than Hi-X55?

  1. Weight305 g vs 240 g+27%
  2. Highest frequency28,000 Hz vs 38,000 Hz+36%
Specifications

Side by side

Sound
FitOver-earOver-ear
Ear cup designClosed-back—
Driver typeDynamic—
Lowest frequency5 Hz6 Hz
Highest frequency28,000 Hz38,000 Hz
Impedance25 Ω120 Ω
Sensitivity118 dB—
Noise control
Active noise cancellingNoNo
Connectivity
WirelessNoNo
3.5 mm jack / AUXYesYes
Design & build
Weight305 g240 g
FoldableYes—
ColoursGreyBlack
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