Hd 300 Protect

Updated July 3, 2026

Overview

Product sourcing insights & recommendations

24 来源

The Sennheiser HD 300 PROtect is a specialized professional monitoring headphone designed for high-stakes environments like broadcasting and live production, where sudden volume spikes can occur. Its key differentiator is the ActiveGard® technology, which limits sound pressure levels (SPL) above 110 dB to protect the user's hearing without introducing audio distortion. Bhphotovideo Sennheiser

Technical Breakdown

* ActiveGard® Protection: A switchable system that attenuates signals above 110 dB SPL. Sennheiser

* Acoustic Performance: Features a linear, high-resolution frequency response (6 Hz – 25 kHz) and high passive isolation up to 32 dB. Bhphotovideo Sennheiser

* Design: Closed-back, over-ear (circumaural) design with viscoelastic earpads for long-duration comfort and a modular, foldable build for durability. Bhphotovideo Sweetwater

Market Trends & Analysis (2026)

The professional studio headphones market is projected to reach approximately $2.3 billion by 2033, with a CAGR of 9% starting in 2026. Coherentmarketinsights Linkedin

* Hearing Safety Priority: There is a rising demand for integrated hearing protection features (like ActiveGard) in professional gear to mitigate long-term health risks for engineers. Eposaudio

* Versatility: Users increasingly prefer "multi-purpose" professional gear that handles both critical production tasks and high-quality general listening. Cognitivemarketresearch

* Wireless vs. Wired: While the wireless market is exploding, the professional sector maintains a strong preference for wired monitoring due to zero latency and uncompressed audio quality. Eposaudio

Sourcing Insights

While the specific Sennheiser model is a proprietary retail product, the B2B market offers several professional-grade alternatives with similar monitoring capabilities and customization options. I have identified 26 professional products and 29 verified suppliers capable of manufacturing high-performance monitoring headphones.

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Sources & References

24 sources cited · Verified industry data & reports

Headphones HD 300 Pro

Sennheiser

Top Specs · Max. sound pressure level123 dB SPL @ 1 kHz · Noise cancellation (db)≤32 dB · Power consumption (Amp)500 mW · Sensitivity108 ±3 dB SPL / 1 V rms / 1 kHz ...

REVIEW: Sennheiser HD 300 PRO headphones

Audio Media International

The HD 300 PRO headphones are designed to meet the needs of studio, live and broadcast engineers who require ambient noise isolation.

Sennheiser HD 300 Pro Studio Headphone Review

Sonarworks

HD 300 Pros have a solid build, relatively natural sound and great sound isolation, furthermore, they're easy to drive and easy to transport.

Headphones HD 300 Protect

Sennheiser

Tech Specs · Noise cancellation (db). Max 32 dB (passive) · ActiveGard®. 110 dB SPL @ 1 kHz · Max. sound pressure level. 123 dB SPL @ 1 kHz (ActiveGard off).

Review: Sennheiser HD 300 Pro - AudioTechnology

audiotechnology.com

Passive noise cancellation is up to 32dB (the same spec as the HD 280s); very usable when recording drums or loud amps. The lightweight plastic ...

Sennheiser HD 300 PROtect Closed-Back Active Gard ...

B&H Photo

The Sennheiser HD 300 PROtect are closed-back over-ear studio monitor headphones offering high-resolution audio reproduction and switchable peak level ...