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Open-back over-ear planar magnetic headphones with silver copper cable

HiFiMAN

HiFiMAN HE400se Stealth Magnets Version headphone

SKU CH-ZBVP-0H9G4

Open-back planar-magnetic headphones with stealth-magnet drivers for low-distortion sound and a silver-copper cable for high-fidelity listening

  • Frequency Response20Hz-20kHz
  • Input Impedance25
  • Sensitivity91
  • CompatibilityUniversal
  • Planar magnetic driver delivers low-distortion sound across 20Hz-20kHz
  • Stealth Magnet design reduces wave diffraction for cleaner audio reproduction
  • 91 dB sensitivity works efficiently with a wide range of sources
  • 25 ohm impedance allows easy driving from portable and desktop devices
  • Silver copper cable included for high-fidelity signal transfer

HE400se Stealth Magnets Over-Ear Headphones

The HiFiMAN HE400se Stealth Magnets Version is an open-back planar magnetic headphone designed for critical listening. Its Stealth Magnet array reduces wave diffraction turbulence to deliver low-distortion sound across a 20Hz-20kHz frequency response. A 25 ohm input impedance and 91 dB sensitivity allow it to be driven from a wide range of sources. The package includes a silver copper cable built for signal fidelity.

Audiophiles and studio users wanting open planar

Listeners who prefer a spacious soundstage and detailed midrange will appreciate the planar driver's uniform diaphragm motion. The lightweight frame and hybrid headband are built for extended sessions without fatigue. Buyers needing noise isolation for commuting or tracking in loud rooms should look at closed-back designs instead. Wireless convenience seekers will not find Bluetooth or battery operation here.

25 ohm planar driver with Stealth Magnet tech

The 25 ohm impedance is the key specification for matching this headphone to your source gear. It presents an easy load for portable players, desktop DACs and studio interfaces alike. Planar magnetic topology combined with the Stealth Magnet structure targets lower distortion than conventional dynamic drivers at this price point. Verify your amplifier can supply adequate current for best dynamics.

Highlights

  • Planar magnetic driver delivers low-distortion sound across 20Hz-20kHz
  • Stealth Magnet design reduces wave diffraction for cleaner audio reproduction
  • 91 dB sensitivity works efficiently with a wide range of sources
  • 25 ohm impedance allows easy driving from portable and desktop devices
  • Silver copper cable included for high-fidelity signal transfer

Specifications

BrandHIFIMAN
ModelHE400se Stealth Magnets Version
Part NumberHE400se
Frequency Response20Hz-20kHz
Input Impedance25
Sensitivity91
CompatibilityUniversal

Questions about this item

How much heat or fan noise does the HE400se Stealth Magnets Version produce during all-day listening?

The HE400se Stealth Magnets Version is a passive planar magnetic headphone with no built-in electronics, so it generates no heat and makes no fan noise during extended use.

What source gear must I already own to drive the HE400se Stealth Magnets Version properly?

With 25 ohm impedance and 91 dB sensitivity, the HE400se Stealth Magnets Version needs a headphone amplifier or audio interface that can deliver sufficient current into a low-impedance load for best results.

Will the HE400se Stealth Magnets Version work alongside my older integrated amplifier that only has speaker terminals?

The HE400se Stealth Magnets Version requires a dedicated headphone output; it cannot be connected directly to speaker terminals on older amplifiers.

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