Hifiman HE400se V1

HIFIMAN HE400se: Open-Back Planar Headphones

The HE400se is described as a classic reborn with a modern twist. This award-winning series has been an audio industry favorite for over 10 years, earning accolades such as the VGP 2022 and various "Editor's Choice" awards from publications like HFN and Excite.

Understanding Planar Magnetic Technology

Planar headphones utilize magnetic layers to create a magnetic field that drives a large, thin diaphragm. Unlike traditional dynamic drivers that use a voice coil, the planar design allows the diaphragm to move more evenly across its entire surface. This results in significantly less distortion, faster transient response, and improved dynamic range.

Acoustically Invisible Stealth Magnets

The HE400se features advanced Stealth Magnet technology. Unlike traditional magnets which can create diffraction and turbulence that interferes with sound waves, the unique shape of Stealth Magnets allows sound to pass through without generating interference. This design ensures an acoustically transparent output that is accurate and full-range across the entire frequency spectrum.

Engineered for Maximum Comfort

Designed for hours of listening pleasure, the HE400se features a newly designed, adjustable lightweight headband. This ensures the headphones remain cool and comfortable even during extended use. The driver housings are built with a new material that enhances durability and provides protection from the elements.

Durable Connections and Specifications

The headphones come equipped with a dual-sided, high-performance 3.5mm cable for maximum signal transmission and durability.

• Frequency Response: 20Hz - 20kHz
• Impedance: 25Ω
• Sensitivity: 91dB
• Weight: 390g