HIFIMAN HE400se V2 Open-Back Planar Magnetic Over-Ear Headphones (Audiophile)

HIFIMAN HE400se (V2 Stealth Magnets) — Open-Back Planar Magnetic Headphones

The HE400se is an open-back, full-size planar headphone featuring HIFIMAN’s Stealth Magnet array and a lightweight suspension headband. Dual 3.5 mm sockets on the cups make cable swaps easy, and the ear-friendly pad and headband design support long listening sessions without excessive heat build-up.

Features Description

• Planar Magnetic Driver — Large diaphragm with uniform drive for low distortion and consistent response across the surface.
• Stealth Magnet Array — Magnet geometry is engineered to reduce air turbulence and reflections around the diaphragm, helping the sound remain clean and coherent.
• Open-Back Architecture — Vented metal grilles contribute to a natural, spacious presentation with precise imaging.
• Detachable Dual-Entry Cabling — 3.5 mm jacks on both earcups fit a wide range of aftermarket cables and balanced options.
• Comfort-Focused Fit — Adjustable, lightweight headband and breathable pads designed for all-day listening.
• Easy to Drive for a Planar — Sensitivity is rated at 91 dB; it plays well from many portable sources and benefits from a dedicated headphone amp for additional headroom.

Specification