HiFiMAN HE400se Stealth: an open-back planar headphone with Stealth Magnet drivers, rated 32 Ω and 91 dB/mW, and the standard first-planar pick for home listening. It scales with the source: a capable dongle gets it going, and a modest desktop amp gets it upright.
Who the HiFiMAN HE400se Stealth is for
First-time planar buyers: You get the planar hallmarks: fast, clean bass and an open, spacious stage.
Home listening: Open-back means the room hears it too, so it suits a home setup rather than an office.
Owners of a capable dongle or desktop amp: Rated 91 dB/mW, it needs roughly 79mW (1.6Vrms) for 110dB peaks, while typical phone dongles top out around 1Vrms into 32Ω.
Listeners with imperfect recordings: The relaxed treble stays kind to rough recordings.
Gamers with a room to themselves: Fast transients and an open-back stage make footstep placement and positional cues easy to track; add a desktop or clip-on mic, since it has none.
Skip it if: you'll listen in an office or shared room, or won't add any amp; it's open-back, and a bare phone or laptop jack leaves it quiet and flat-sounding.
HiFiMAN HE400se Stealth key specs
Driver: Planar magnetic (Stealth Magnets)
Design: Open-back
Impedance: 32 Ω
Sensitivity: 91 dB/mW
Frequency response: 20 Hz – 20 kHz
Connector: Dual 3.5 mm at cups, 3.5 mm plug
Weight: 385 g
Microphone: None
Recommended source: Desktop amp or capable dongle
Genuine stock, 1-year warranty.
HiFiMAN HE400se Stealth vs similar options
vs HIFIMAN HE-R9 Wired: Need isolation? HIFIMAN's HE-R9 Wired is a closed-back 50 mm dynamic (60 Ω, 100 dB, 328 g); the open-back HE400se Stealth lets the room hear your music, so keep it for home listening.
vs FiiO JT3: FiiO's JT3 is also open-back but uses a 50mm dynamic driver with a PEK+PU composite diaphragm; pick the HE400se Stealth if you want planar drivers and can feed them a capable dongle or amp.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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