From a producers perspective: a look at the HIFIMAN HE400se

The HIFIMAN HE400se. By Peter Bjørnild, producer at Sound Liaison.

From a producer’s perspective, the HIFIMAN HE400se is an exceptional entry point into planar magnetic headphones — not just for its affordability, but for how clearly it reveals what makes planar technology special. :contentReference[oaicite:0]{index=0}

Here I focus on its studio-relevant qualities rather than casual listening impressions.

First impression

Track: “Passway Opening Credits” – Carmen Gomes Inc., Stones in My Passway

The headphone’s depth and spatial precision are immediately evident: the distant train moving left to right, footsteps crunching on gravel, dogs barking, Carmen’s moaning vocal centered with the bass slightly to the left responding, cymbals swelling from afar, and the 12-string guitar imposing like the tempting Devil — all rendered clearly and coherently.

Sound Signature & Tonal Balance

Overall Character

Neutral to slightly bright, with a clear, open midrange and excellent treble extension. Vocals and acoustic instruments sound natural and well-defined.

Bass

Tight, articulate, and extending cleanly into the sub-bass. Controlled rather than boosted — ideal for reference work.

Midrange

Fast and transparent. Textures in voices, double bass articulation, and piano string resonance come through clearly. Reverb tails are easy to follow.

Treble

Smooth, extended, and detailed without harshness.

Imaging & Soundstage

Pinpoint imaging with stable placement. The stage feels natural and proportionate — more like a well-treated studio than an artificially wide space.

Microdynamics

Subtle variations in phrasing, tone, and touch are easy to hear. Cymbals, brushes, and vocal inflections are rendered with finesse.

This tuning leans toward reference neutrality, making it well-suited for the kind of acoustic, jazz, and classical work we focus on at Sound Liaison. :contentReference[oaicite:1]{index=1}

The planar drivers deliver the transient precision and low distortion needed for critical listening, whether tracking or comparing takes.

Amplification

With a 25Ω impedance and 91dB sensitivity, the HE400se can be driven easily from a phone or laptop. :contentReference[oaicite:2]{index=2}

However, pairing it with a dedicated amp tightens the bass, smooths the treble, and enhances overall dynamics. It clearly benefits from cleaner, higher-quality sources.

Build & Comfort

Solid build. The headband is light yet sturdy, distributing weight evenly and remaining comfortable for long listening or editing sessions.

Summing up

The HIFIMAN HE400se delivers a true planar magnetic experience with balanced tonality and solid technical performance.

It’s not colored or artificially warm — it’s honest, making it a dependable secondary reference headphone for mixing, mastering, or analytical listening.

When paired with a good amplifier, it offers precise imaging, fast transients, and tonal accuracy that rival far more expensive models.

For producers, engineers, and musicians who value accuracy over embellishment, it’s a rare bargain — and a trustworthy studio companion.

Musicians’ Impressions

“I have this headphone at home and use it daily — for listening, creating SAT arrangements, and composing. It’s my perfect workhorse.”
— Carmen Gomes

“There’s a pleasant calmness to the sound.”
— David Lukács (reeds)

“Nice, compact, go-to studio headphone with great quality.”
— Jasper Somsen (bass)

“Excellent for tracking — easy to focus on specific details.”
— Bert van den Brink (piano)

“Straight-up honest sound with great imaging and a nicely wide soundstage.”
— Frans de Rond (head engineer)