Sennheiser HD 300 PROtect Studio Monitor Headphones

Professional Closed-Back Over-Ear Headphones with Hearing Protection

The Sennheiser HD 300 PROtect headphones are built for professionals who need both accurate studio monitoring and reliable hearing protection. Whether you're a musician, sound engineer, or working in live event production, these closed-back over-ear studio headphones deliver consistent, high-resolution sound in even the most demanding environments.

Precise Audio for Critical Listening

With a wide frequency response from 6 Hz to 25 kHz, these headphones reproduce sound with impressive clarity and minimal distortion. The precision-diaphragm dynamic drivers ensure you hear every detail, from the deepest lows to the most delicate highs. A maximum sound pressure level of 123 dB makes them ideal for high-output scenarios.

Built-In Hearing Protection with Active Gard

Unpredictable audio spikes can cause long-term damage. That’s why the HD 300 PROtect includes Sennheiser’s switchable Active Gard technology, which automatically reduces peaks above 110 dBA. This helps protect your hearing without compromising sound quality, making these headphones a smart choice for extended sessions in loud environments.

Comfortable for Long Studio or Stage Sessions

Comfort matters when you're wearing headphones for hours. The HD 300 PROtect features viscoelastic ear cushions and a padded headband that provide a secure, comfortable fit during long days of recording, mixing, or stage monitoring. The closed-back circumaural design blocks up to 32 dB of ambient noise, keeping you focused on your work.

Durable and Flexible for Everyday Use

The HD 300 PROtect is designed for practical, professional use. It comes with a detachable 4.9-foot single-sided cable that ends in a standard 3.5mm stereo mini jack, perfect for portable gear and audio interfaces. A 1/4-inch TRS adapter is included, giving you quick compatibility with mixers and studio-grade headphone amps. These headphones also fold down for easy storage and transport.

Engineered for Safety and Performance

Compliant with European EC industrial noise control standards, the HD 300 PROtect helps safeguard not only your hearing but also your peace of mind. You get clean, accurate sound with the confidence that sudden volume spikes won’t compromise your hearing health.