Sennheiser launches HD 400 PRO studio headphones


On December 1, Sennheiser launched a new type of professional open headphones for mixing, editing and mastering. Creators seek natural and accurate sound reproduction, and use it to accurately evaluate the mixing effect, and Sennheiser HD 400 PRO studio reference headphones are their ideal working partners. In order to facilitate long-term use, HD 400 PRO adopts a comfortable and lightweight open design, and is equipped with soft velvet ear cushions. This headset includes two detachable cables, spiral and straight, so that the headphone can adapt to different preferences.

Sennheiser HD 400 PRO

Sennheiser HD 400 PRO new reference studio headphones

“We are very happy to launch the first open studio headphones of the Sennheiser PRO series.” Gunnar Dirks, professional audio product manager, commented, “When editing and mixing, what you need is the detail and authenticity of the sound. Sennheiser HD 400 PRO can bring you this kind of experience. Thanks to its linear, high-resolution sound reproduction, this headset is a reliable tool for creating outstanding mixes.”

Designed for accuracy

Sennheiser HD 400 PRO has a wide frequency response from 6Hz to 38kHz, allowing music producers to fully understand the effects of their mixing. The 120Ω headphone unit developed by Sennheiser contains a diaphragm made of a special polymer compound, which, together with a powerful driving magnet, produces deeper bass while maintaining extremely high clarity and precision. Distortion is less than 0.05% (measured at 1000 Hz, 90 db sound pressure level).

HD 400 PRO accurately reproduces audio beyond the auditory frequency range, allowing you to feel the subtle changes and atmosphere in the music without limitation, while showing its bold and clear low-frequency response.

Sennheiser HD 400 PRO

Create a sense of space accurately


Sennheiser HD 400 PRO headphones are highly comfortable to wear, and comfort can enhance creativity. The well-designed ultra-light frame puts the earmuffs in place and gently embraces both ears with minimal pressure. The soft velvet ear cushions allow users to focus on creation for several hours, while the open ring-ear design provides enough space for both ears to ventilate, keeping them fresh even for long-term mixing.

Sennheiser HD 400 PRO

Comfort that lasts for hours: Sennheiser HD 400 PRO reference headphones are ultra-lightweight

Sennheiser HD 400 PRO is available now, priced at US$249/£219. It is a reasonable choice for audio professionals with a moderate budget. The earphones are equipped with a 3-meter spiral cord and a 1.8-meter straight line, both with 3.5mm (1/8 inch) plugs for portable audio sources. It also includes a 6.3mm (1/4 inch) adapter to ensure that the HD 400 PRO can be connected to your mixer or audio interface.

In contrast, Shure SRH1540 sells for as much as US$500, and Audio-Technica ATH-R70x also costs US$349.

Sennheiser HD 400 PRO

Technical parameter

Acoustic principle: dynamic, open
Wearing method: Over-Ear
Frequency response: 6Hz~38kHz

Total harmonic distortion:
Impedance: 120Ω
Sound pressure level: 110 db (1000Hz, 1Vrms)
Plug: 3.5mm(1/8 inch) plug, 6.3mm(1/4 inch) plug
Weight: 240g (without cable)

Shaping the future of audio and creating a unique sound experience for customers is the common goal of all Sennheiser employees and global partners. As an independent family business, Sennheiser was founded in 1945 and is jointly managed by the third-generation heirs, Daniel Sennheiser and Andreas Sennheiser. Has developed into a global leader in headphones, microphones and wireless transmission system product manufacturers.


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