Sennheiser has announced the availability of a new pair of professional headphones for mixing, editing, and mastering. The HD 400 PRO studio reference headphones are an ideal companion for creators seeking natural and precise sound reproduction to accurately assess their audio mixes.

To ease long sessions, the HD 400 PRO features a comfortable and lightweight open-back design fitted with soft velour ear pads. The unit includes both coiled and straight detachable cables, allowing the headphones to adapt to different use preferences.

“We are happy to introduce the first open studio headphones in Sennheiser’s PRO line,” commented Gunnar Dirks, Product Manager, Professional Audio. “When editing and mixing, you need detail and honesty, and this is what the HD 400 PRO will give you. Thanks to their linear, high-resolution reproduction, these headphones are a reliable reference to create outstanding audio mixes.”

The HD 400 PRO features a wide frequency response of 6 to 38,000 hertz to give music producers the full account of their mix. The Sennheiser-developed 120-ohm transducers include a diaphragm made from a special polymer blend, which together with powerful driver magnets yields deeper, yet totally clear and well-defined bass. Distortion is below 0.05% (measured at 1 kHz, 90 dB SPL). The HD 400 PRO accurately reproduces audio beyond the audible frequency range, giving you unbridled access to nuanced harmonics and ambiance in your music, while at the same time revealing a bold, articulate low-end.

HD 400 PRO features

  • A professional’s tool with neutral sound reproduction.
  • Lightweight design for all-day usage.
  • Single-sided, coiled cable allows freedom to operate. For convenience, a straight cable is also included.
  • Angled transducers designed for low distortion at high SPL’s provide a spacious and accurate soundstage.

The HD 400 PRO is available now, priced $249 USD (MSRP). The headphones come with a 3-meter coiled cable and a 1.8-meter straight cable, both fitted with a 3.5 mm (1/8”) jack plug for portable sources. A 6.3 mm (1/4”) adapter is included, ensuring that the HD 400 PRO connects to your mixing desk or audio interface.

More information: Sennheiser