Sennheiser HD 400 Pro

7.2

/ 10

Specifications

Impedance

32 Ω

Sensitivity

104 dB/mW

Type

Over-ear

Amp required

Not necessary

Score by configuration

No amplifier

6.1

Portable amp

6.6

Desktop amp

7.2

Max score assumes optimal full audio chain.

Analysis

The Sennheiser HD 400 Pro is a mid range over-ear with 32Ω impedance and 104dB sensitivity. At 32Ω, these headphones drive well from most phones and computers without needing an external amplifier.

Your audio source matters more than most people think. Spotify High Quality is fine for casual listening, but with FLAC files or lossless services like Apple Music or TIDAL you'll hear a clear improvement — especially with mid range headphones like these.

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