Sennheiser launches new range of HD 400 PRO Studio reference headphones


Audio specialist Sennheiser has launched a new pair of professional headphones for mixing, editing and mastering. The HD 400 PRO Studio Reference Headphones are an ideal companion for creators looking for natural and precise sound reproduction to accurately assess their audio mixes. To facilitate long sessions, the HD 400 PRO features a comfortable and lightweight open-back design fitted with soft velor ear pads. The unit includes detachable coiled and straight cables, allowing the headset to adapt to different usage preferences. The HD 400 PRO is available now and priced at $ 249 (MSRP).

“We are pleased to present the first open studio headphones in the Sennheiser PRO line,” comments Gunnar Dirks, Product Manager, Professional Audio. “When editing and mixing, you need detail and honesty, and that’s what the HD 400 PRO will give you. Thanks to their linear and high-resolution reproduction, these headphones are a reliable benchmark for creating exceptional audio mixes.

Engineered for precision
The HD 400 PRO features a wide frequency response from 6 to 38,000 hertz to give music producers the full count of their mix. The 120 ohm transducers developed by Sennheiser feature a diaphragm made from a special polymer blend, which, together with powerful driver magnets, produces deeper, yet totally clear and well-defined bass. Distortion is less than 0.05% (measured at 1 kHz, 90 dB SPL).

The HD 400 PRO accurately reproduces audio beyond the audible frequency range, giving you unlimited access to the harmonics and nuanced ambiance of your music, while revealing bold, articulate bass.

HD 400 PRO studio headphones help you reveal every little detail in your music

Designed for space
The HD 400 PRO’s headphone transducers are angled slightly, carefully recreating the optimal triangular listening position you would place yourself in when listening to monitor speakers in a recording studio. Additionally, the HD 400 PRO’s open-back design ensures natural sound propagation, without being hampered by the acoustic structures required in closed-back designs. Both aspects create a wide and spacious soundstage that is neutral and transparent, allowing audio producers to work with confidence knowing that their final mix is ​​transferred with precision to listeners.

Designed for comfort
The HD 400 PRO headphones offer high comfort that prolongs creativity. A carefully designed ultralight frame positions the ear cups in place, gently squeezing the ears with minimal pressure. Soft velor ear cushions allow users to focus on projects for hours on end, while the open circumaural design provides enough ventilation to keep ears cool, even during long mixing sessions.

Comfortable for hours: The reference HD 400 PRO headphones feature an ultra-light design

Comfortable for hours: The reference HD 400 PRO headphones feature an ultra-light design

The headphones come with a 3 meter coiled cable and a 1.8 meter straight cable, both equipped with a 3.5 mm (1/8 “) jack socket for portable sources. A 6.3 mm adapter (1/4 “) is included, ensuring that the HD 400 PRO connects to your mixer or audio interface.

Technical data
Acoustic principle: dynamic, open
Ear coupling: circumaural
Frequency response: 6 – 38,000 Hz
THD: Impedance: 120
Sound pressure level: 110 dB (1 kHz, 1 Vrms)
Connector: 3.5 mm (1/8 “) jack with adapter to 6.3 mm (1/4”) jack
Weight: 240 g (without cable)

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