Sennheiser

Sennheiser 700047 HD 400 PRO Studio Headphones

4.4 (60 reviews)

Hear Every Detail: Sennheiser HD 400 PRO Studio Headphones The Sennheiser HD 400 PRO open-back headphones deliver a natural and accurate listening experience, perfect for studio mixing, audio production, and critical listening. With a lightweight design, velour earpads, and angled transducers, t...

$199.99*
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*Price sourced from Amazon.com. Last updated:Jun 19, 2026.Price and availability are subject to change.

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Overview

Hear Every Detail: Sennheiser HD 400 PRO Studio Headphones

The Sennheiser HD 400 PRO open-back headphones deliver a natural and accurate listening experience, perfect for studio mixing, audio production, and critical listening. With a lightweight design, velour earpads, and angled transducers, these headphones provide comfort and precision for extended sessions.

Specifications:

  • Acoustic Principle: Open-back
  • Frequency Response: 6 Hz to 38 kHz
  • Connectivity: Wired (3.5 mm Jack)
  • Cable: Removable 1/8” cable with ¼” adapter
  • Earpads: Velour
  • Transducers: Angled

Key Features

A professional’s tool with neutral sound reproduction

Lightweight design for all-day usage

Single-sided, coiled cable allows freedom to operate. Straight cable included as well for more compact applications

Angled transducers designed for low distortion at high SPL provide a spacious and accurate soundstage

Specifications

Model
HD 400 PRO
Type
Studio Headphones
Sound Reproduction
Neutral
Design Feature
Lightweight
Cable Type
Single-sided, coiled cable (included); Straight cable (included)
Transducers
Angled
Soundstage
Spacious and accurate
Distortion
Low at high SPL

Pros & Cons

👍 Pros

  • Offers neutral sound reproduction, which is crucial for accurate mixing and mastering in studio environments.
  • Designed with a lightweight build, ensuring comfort during extended, all-day usage sessions.
  • Includes both a single-sided coiled cable and a straight cable, providing flexibility for different studio setups and portability needs.
  • Features angled transducers, which contribute to low distortion at high SPL (Sound Pressure Level) and create a spacious soundstage.
  • Engineered for professional users, indicating a focus on reliability and high-fidelity audio.

👎 Cons

  • The professional studio focus means they might not have enhanced bass or consumer-friendly sound profiles that casual listeners might prefer.
  • As wired headphones, they require a physical connection to audio equipment, limiting wireless freedom.
  • Specific details regarding impedance, frequency response, or sensitivity are not provided, making it difficult to assess full audio specifications.
  • The design prioritizes studio functionality, so features like active noise cancellation or integrated microphones are not mentioned.
  • No information is given on ear cup material or headband adjustability, which could impact long-term comfort for some users.

Frequently Asked Questions

The Sennheiser HD 400 PRO headphones are designed for professional use with neutral sound reproduction, ensuring an accurate and unbiased audio experience.
Yes, they feature a lightweight design specifically intended for all-day usage, enhancing comfort during extended studio sessions.
The headphones come with a single-sided, coiled cable for operational freedom and a straight cable for more compact applications, offering versatility.
Yes, the angled transducers are designed to provide a spacious and accurate soundstage, contributing to an immersive listening experience with low distortion at high SPL.
These are described as "professional's tool" and "Studio Headphones," indicating their primary design and intended use are for professional audio environments requiring neutral sound.