Thumbnail of product HD 400s from brand Sennheiser
Logo of brand Sennheiser

Headphone Sennheiser HD 400s

The Sennheiser HD 400s headphones are designed to provide an immersive audio experience and comfort. With a sensitivity of 120 dB and an impedance of 18 Ohm, these headphones ensure clear and powerful sound, ideal for listening to music or making calls.

The closed acoustic system allows for optimal sound isolation, enabling you to fully immerse yourself in your musical universe. With a frequency range of 18 to 20,000 Hz, the Sennheiser HD 400s deliver a wide sound spectrum to satisfy audiophiles.

The in-ear design ensures prolonged comfort, while the 1.4 m cable length offers flexibility of use. Foldable, they are easy to store and transport, making them perfect for travel.

With wired connectivity via a standard 3.5 mm connector, these headphones are compatible with many devices. Although lacking Bluetooth functionality, they remain a reliable option for interference-free listening.

In summary, the Sennheiser HD 400s are headphones that offer exceptional sound quality and optimal comfort, ideal for music lovers and professionals on the go.

Manual of product HD 400s

8 10

Editorial note

The Sennheiser HD 400s headphones stand out for their exceptional sound quality, offering a sensitivity of 120 dB and a low harmonic distortion of only 0.5%. This ensures faithful and immersive audio reproduction, ideal for music lovers. Their modern and practical design, combined with the foldable feature, makes them easy to transport, making them an interesting choice for users on the go. The comfort of use is also worth mentioning, thanks to their in-ear coupling and lightweight of 217 g, allowing for prolonged listening sessions without discomfort. However, some drawbacks must be taken into account. The lack of wireless connectivity and a jack input for a microphone limits their versatility, especially for calls or voice recordings. Additionally, while the weight is reasonable, it could become uncomfortable during extended use. Finally, the value for money is satisfactory, but the absence of advanced features such as active noise cancellation may not justify the price for all users. In summary, the Sennheiser HD 400s are an excellent choice for those who prioritize audio quality and comfort, while keeping in mind their limitations in terms of connectivity and features.

Score details

User experience

The user experience is overall positive thanks to optimal comfort, even during prolonged listening.

Performance

The sound quality is exceptional with a sensitivity of 120 dB and low harmonic distortion, ensuring faithful audio reproduction.

Design

The design of the headphones is modern and practical, with a foldable feature that makes transportation easier.

Features

Although the headphones offer good features, the lack of wireless connectivity and active noise cancellation limits their versatility.

Value for money

The value for money is good, but the absence of certain advanced features may not justify the price for all users.


Advantages

Exceptional sound and total immersion

Lightweight comfort for long listening

Effective acoustic isolation

Foldable for easy transport

Compatible with various devices

Disadvantages

No wireless connectivity

No built-in microphone

Weight of 217 g, uncomfortable for long periods

No active noise cancellation

No charging dock included

Technical Specifications HD 400s

General Information

Headphones/Earphones

  • Headset sensitivity
    120 dB
  • Impedance
    18 Ohm
  • DHT, total harmonic distortion
    0.5 %
  • Acoustic system
    Closed
  • Headphone frequency
    18 - 20000 Hz
  • Ear coupling
    Supra-aural

Representation / realization

  • Cable length
    1.4 m
  • Sound pressure level (max)
    120 dB
  • Product color
    Black
  • Foldable
    Yes
  • Portable headset style
    Arch
  • Product type
    Headphones
  • Recommended use
    Calls/Music
  • Order type
    Buttons, Rotary

Other features

  • Take with airplane adapter
    Yes
  • 2.5 mm connector
    No

Connectivity

  • 3.5 mm connector
    Yes
  • Connectivity technology
    Wired
  • 3.5 mm connector
    Yes
  • RF Connectivity
    No
  • RF Connectivity
    No
  • RF Connectivity
    No
  • RF Connectivity
    No

Packaging contents

  • Quantity
    1
  • Charging base
    No

Weight and dimensions

  • Weight
    217 g

Microphone

  • Noise-cancelling microphone
    No
  • Microphone type
    Integrated

Packaging information

  • Package weight
    456 g
  • Type of packaging
    Box
  • Package width
    195 mm
  • Package height
    100 mm
  • Package depth
    232 mm

Frequently Asked Questions

At what level does the volume become too high?
A volume of 80 decibels can be harmful to hearing. When the sound exceeds 120 decibels, damage can occur instantly. The risk of hearing damage depends on the frequency and duration of listening.
Is it possible to make hands-free calls with my headphones?
Recent headphones are generally equipped with a built-in microphone that allows for making calls.
What is the noise cancellation feature?
Noise cancellation helps to reduce ambient noise.
What is Bluetooth?
Bluetooth allows for wireless data transmission between electronic devices using radio waves. Generally, the range between devices can reach up to ten meters.
What is the weight of the Sennheiser HD 400s headphones?
The Sennheiser HD 400s headphones weigh 217 grams.
Is the user manual for the Sennheiser HD 400s available in French?
Yes, the user manual for the Sennheiser HD 400s is available in French.

Similar products


Discover the technical sheet of HD 461i from Sennheiser and its manuals...
Available manuals:
Discover the technical sheet of Presence from Sennheiser and its manuals...
Available manuals:
Discover the technical sheet of HD 461G from Sennheiser and its manuals...
Available manuals:
Discover the technical sheet of BTST 9300 from SilverCrest and its manuals...
Available manuals:
Discover the technical sheet of HS 2700 BT II from SilverCrest and its manuals...
Available manuals:
Discover the technical sheet of HS1000 from SilverCrest and its manuals...
Available manuals:
Discover the technical sheet of HS 2700BT from SilverCrest and its manuals...
Available manuals:
Discover the technical sheet of SFR 24 A1 from SilverCrest and its manuals...
Available manuals:
Discover the technical sheet of SFR 2.4 B1 from SilverCrest and its manuals...
Available manuals:
Discover the technical sheet of RS 2000 from Sennheiser and its manuals...
Available manuals:
Discover the technical sheet of A 200 from Sennheiser and its manuals...
Available manuals:
Discover the technical sheet of HD 471i from Sennheiser and its manuals...
Available manuals:

Presentation of product HD 400s specifications from brand Sennheiser

General Information

The Sennheiser HD 400s headphones, from the renowned Sennheiser brand, are designed to provide a high-quality audio experience. This model, referenced under the name HD 400s | 508598, stands out for its optimal performance. The EAN code, 0615104327870 and 4044155245110, allows for precise identification in the distribution system.

Headphones/Earphones

With a sensitivity of 120 dB, these headphones ensure clear and powerful sound, conducive to an immersive listening experience. Their impedance of 18 Ohm guarantees superior audio quality, while the total harmonic distortion, limited to 0.5 %, allows for faithful sound reproduction. The closed acoustic system of the HD 400s offers effective sound isolation, allowing for complete immersion in the music. Covering a frequency range of 18 to 20,000 Hz, these headphones feature an in-ear coupling that promotes both sound immersion and listening comfort over long periods.

Representation / Performance

The cable of the Sennheiser HD 400s measures 1.4 m, providing flexibility and practicality during use. With a maximum sound pressure level of 120 dB, they ensure an enjoyable sound experience while preserving auditory comfort. Their black color gives them a modern and elegant look. Additionally, these headphones are foldable, making them easy to store and transport, perfect for users on the go. Designed primarily for calls and music listening, they are compatible with various devices such as PCs and laptops. The controls are intuitive, incorporating buttons and a rotary system for simplified use.

Other Features

The Sennheiser HD 400s come equipped with a plug with an adapter for airplanes, ideal for travelers. However, they do not include a 2.5 mm connector, which may limit some connection options.

Connectivity

These headphones do not have a jack input for a microphone, which could be a disadvantage for users wishing to use them for voice calls. They operate with wired connectivity, providing a stable connection through their 3.5 mm connector. It is worth noting that they do not have USB or Bluetooth connectivity, limiting wireless options.

Packaging Contents

The package includes one unit of the Sennheiser HD 400s. However, there is no charging dock included.

Weight and Dimensions

Weighing 217 g, these headphones are lightweight and easy to handle, ensuring prolonged comfort during use.

Microphone

The built-in microphone of the HD 400s does not offer noise cancellation functionality. However, it remains practical for simple recordings and calls.

Packaging Information

The total weight of the packaging is 456 g, ensuring effective protection during transport. The product is presented in a box, making storage and transport easier. The dimensions of the package are designed to ensure easy handling, with a width of 195 mm, a height of 100 mm, and a depth of 232 mm.