Key facts
- Manuals
- 1
- Languages
- EN
- Last added
- 2026-09-29
Featured HiFiMAN manuals
HIFIMAN HE400se Headphones Owner’s Guide
The HE400se is an open‑back headphone with planar magnetic drivers, offering a wide frequency response, high efficiency (91 dB), and a lightweight design (390 g). It includes a detachable cable with 3.5 mm plugs and a ¼" adapter, as well as beveled hybrid earpads for comfort and sound quality.
The guide explains headband adjustment, earpad replacement, break‑in procedure, cleaning instructions, and warranty terms. It also details how to connect the headphones to various audio sources and provides contact information for support and warranty service.
Covers: Product Overview · Specifications · Headband Adjustment · Earpad Design and Replacement · Set‑up and Operation · Cleaning and Maintenance
Latest HiFiMAN manuals
HIFIMAN HE400se Headphones Owner’s Guide
User Manual 7 pages · 1.1 MB · ENThe HIFIMAN HE400se Owner’s Guide provides product overview, specifications, setup, operation, and warranty information for the headphones.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in HiFiMAN manuals
How do I adjust the headband for a proper fit?
Move the sliding black block on each side of the headband until the headband rests comfortably on top of your head.
How should I clean the HE400se headphones?
Use a soft, slightly damp cloth; do not use detergents or let any fluid enter the open sides of the headphone.