HD 300 PROtect

Sennheiser Star Rating

4.5 (2) Reviews

Your ears require not only crystal-clear sound, but but also need protection. HD 300 PROtect adjusts unexpected peak levels, preventing clipping.
Article No. 506898
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HD 300 PROtect

Sennheiser Star Rating

4.5 (2) Reviews


Safe and sound

The HD 300 PROtect combines advanced protection from peak levels with incredibly detailed sound and an exceptionally high level of wearing comfort. This makes it a reliable tool for demanding productions.

HD 300 PROtect. The healthy way to hear more.

Active Gard: Smart protection

The patented Active Gard technology of the HD 300 PROtect does not simply switch off at peak levels above 110 dB but reduces signals that are too loud down to a safe level. Previously disruptive or harmful volumes therefore remain distortion-free and clear, and control of the production is retained at all times. The HD 300 PROtect thereby not only satisfies with the European EC noise directive on industrial safety and noise control but also safeguards the hearing and presence of mind of all production staff, even in the event of big or small surprises.

Professionally precise

The acoustics of the HD 300 PROtect are systematically tailored to the requirements of professional use. Its linear frequency response provides a neutral, high-resolution sound. With its highly sensitive transducers and precision diaphragms, the HD 300 PROtect achieves a phenomenal depth of detail which it reproduces – even at maximum volumes – in a crystal clear manner without distortions. For an ambient sound, we have recalculated the air volumes in front of the ear at a level, inspired by the HD 250 linear.

Comfortable even in continuous use

Professionals often wear headphones for several hours. The HD 300 PROtect is precisely designed for this purpose with its particularly soft, viscoelastic earpads – which also systematically filter out ambient noise – and finely balanced pressure distribution. This makes the HD 300 PROtect an exceptionally inconspicuous companion, even when used continuously.

  • Switchable ActiveGard to protect hearing for sound pressure levels above 110 dB 

  • Highest resolution due to accurate and linear sound reproduction

  • Comfortable padding design allows for extended use in long wearing sessions

  • Superior ambient noise attenuation in loud environments due to closed passive earcup construction

  • Perfect companion for your daily work due to long lasting materials and exchangeable cables with Sennheiser's established system connector

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Sennheiser Star Rating

4.5 (2) Reviews

100.0% of Reviewers Would Recommend this product to a friend

  • Helen

    Sennheiser Star Rating


    My brother loved them but sadly passed away new years day


    My brother loved them




    For the tv


    I would recommend this to a friend.

  • Rob
    United Kingdom

    Sennheiser Star Rating


    Good headphones I'm no expert but sound crisp and clean to me. Only annoying thing is I want to protect my ears and can't open up the side panel


    Good clear sound


    Can't open side panel to activate protect.


    Clear sound


    I would recommend this to a friend.

What's in the Box
  • 1 HD 300 PROtect headphone
  • 1 cable (1.5m with 3.5mm jack)
  • 1 1/4 “ Adapter jack
  • 1 Quick start guide
Contact Us
Product Support Phone

+44 1628 402200


  • EU Declaration of Conformity
    • EU Declaration of Conformity HD/HMD 300 series (730 KB) Download

  • Technical Information
    • Cable compatibility for Headset series 300 PRO (HD 300 PRO / HD 300 PROtect / HMD 300 PRO / HMD 301 PRO)) (170 KB) Download

    • Cable compatibility for broadcast headsets (200 KB) Download

  • Spec Sheets
    • Product Specification HD 300 PRO / HD 300 PROtect (280 KB) Download

  • Quick Guides
    • Quick guide - HD 300 PRO/PROtect (410 KB) Download

    • Quick guide - HD / HMD 300 PRO - Earpads (2 MB) Download

  • Instruction Manual
    • Instruction manual - HD / HMD 300 PRO (HTML) Download