
Sennheiser
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The Sennheiser HD 400S are lightweight, foldable, closed‑back over‑ear headphones featuring a detachable 1.4 m cable with a one‑button smart remote and built‑in omnidirectional microphone. They deliver a warm, bass‑forward sound with high sensitivity, making them ideal for portable listening and calls.
Pros
Current
$69.99
Average
$66.01
Lowest
$39.95
Highest
$89.95
Lower = better sales rank
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Cons
From Expert Reviews
Praised by Experts
Criticized by Experts
Expert Opinion
Professional reviewers commend the HD 400S for delivering a strong, well‑controlled bass response and a warm, extended sound signature that works well with smartphones and MP3 players. The high sensitivity and low impedance make the headphones easy to drive, while the lightweight build and low clamping force ensure comfort during long listening sessions. Minor drawbacks noted include a 4.5 kHz resonance from the ported design and a measured impedance that is slightly higher than the specification, which could affect compatibility with some low‑output sources.
What Users Say
Everyday users, although not quoted directly, appear to appreciate the headphones' portability, comfortable fit, and punchy bass, especially for commuting and casual listening. The one‑button remote and built‑in microphone are frequently mentioned as convenient features, while no major complaints beyond the technical resonance have surfaced in the available feedback.
Common Complaints
A resonance around 4.5 kHz can cause a subtle harshness in the upper mids, and the measured impedance of 22 Ω versus the advertised 18 Ω may lead to minor source mismatch for some devices.
How It Compares
vs. Sennheiser HD 400
Advantages
Disadvantages
Choose the HD 400S for portable, bass‑forward use and on‑the‑go convenience; opt for the HD 400 if you prioritize a more neutral sound and a non‑foldable, solid‑build design.