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Sennheiser HD 300 PROtect Headphone with Ultra-Linear Response, ON/OFF ActiveGard Limiter & 1.5m Cable with 3.5mm Jack

SKU: SEHD300PROT MFR: 506898
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Key Features

  • Experience ultra-linear sound with these Sennheiser HD 300 PROtect headphones, ideal for broadcast use.
  • ActiveGard limiter ensures your hearing is protected, capping sound pressure at 110 dB SPL.
  • Enjoy exceptional comfort with circumaural ear coupling, perfect for long studio or broadcast sessions.
  • Dynamic, closed design provides max 32 dB passive noise cancellation, so you stay focused on audio.
  • Durable build and replaceable 1.5m cable with 3.5mm jack ensures longevity for daily professional use.
  • These wired headphones deliver a wide 6 Hz - 25kHz frequency response for accurate audio monitoring.
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Sennheiser HD 300 PROtect Specifications

  • Impedance

    64 ohms

  • Frequency response (Headphones)

    6 Hz - 25kHz

  • Max. sound pressure level

    123 dB SPL @ 1 kHz (ActiveGard off)

  • Contact pressure

    6.0 N +/- 0.75 N

  • Ear coupling

    Circumaural

  • Power consumption

    500mW

  • Storage temperature

    -55 Degree C to +70 Degree C

  • Operating temperature

    -15 Degree C to +55 Degree C

  • ActiveGard

    110 dB SPL @ 1 kHz

  • Distortion

    <0.1 % @ 1 kHz, 100 dB SPL

  • Max. Sound pressure level (active)

    110 dB SPL @ 1 kHz (ActiveGard on)

  • Sensitivity

    108 +/-3 dB SPL / 1 V rms / 1 kHz

  • Transducer principle (headphones)

    Dynamic, closed

  • Noise cancellation

    Max 32 dB (passive)

  • Weight

    10.47 oz (297g)

  • UPC Code

    615104272170

1 Accessories for Sennheiser HD 300 PROtect Headphone with Ultra-Linear Response, ON/OFF ActiveGard Limiter & 1.5m Cable with 3.5mm Jack

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About Sennheiser HD 300 PROtect

HD 300 PROtect - as HD 300 PRO, with selectable (on/off) ActiveGard

Professional ears require not only crystal-clear, high-resolution sound, but also protection from unexpected peak levels. Here, the Active Gard system of the HD 300 PROtect is on the case. Instead of simply clipping peaks above 110 dB, the system adjusts the overall sound down to the maximum permitted volume - retaining all information and dynamics in the process.

Other design elements also protect the user's concentration. For example, the maximum shielding of ambient noise and a sound pattern that is everything you could want when it comes to intelligibility, differentiation or resolution. The ergonomic design guarantees that, even after hours of work, only one thing 'carries weight': the sound.

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.

Sennheiser HD 300 PROtect Features

  • 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

Warranty Information

This product has a limited warranty of 24 months.

Key Features

  • Experience ultra-linear sound with these Sennheiser HD 300 PROtect headphones, ideal for broadcast use.
  • ActiveGard limiter ensures your hearing is protected, capping sound pressure at 110 dB SPL.
  • Enjoy exceptional comfort with circumaural ear coupling, perfect for long studio or broadcast sessions.
  • Dynamic, closed design provides max 32 dB passive noise cancellation, so you stay focused on audio.
  • Durable build and replaceable 1.5m cable with 3.5mm jack ensures longevity for daily professional use.
  • These wired headphones deliver a wide 6 Hz - 25kHz frequency response for accurate audio monitoring.

What's in the box:

  • HD 300 PROtect Headphone
  • Cable (1.5m Long with 3.5mm Jack)
  • 1/4 " Adapter Jack
  • Quick Start Guide
  • Sennheiser 2 Year Limited Warranty