Sennheiser HD 300 PROtect Closed-back ActiveGard Volume-limited Monitor Headphones

Sennheiser HD 300 PROtect Headphones

Experience high-fidelity monitoring with the Sennheiser HD 300 PROtect headphones, designed for professionals who demand both accurate sound and hearing protection. Featuring ActiveGard® technology, these headphones automatically limit sudden audio spikes, protecting your ears from unexpected loud signals. The closed-back circumaural design provides excellent passive noise isolation—up to 32 dB—so you can focus on your mix even in loud or distracting environments.

Built for comfort during long sessions, the HD 300 PROtect includes viscoelastic earpads and a short coiled cable to minimize structure-borne noise. A replaceable single-sided coiled cable with a 3.5mm plug and screw-on 1/4" adapter ensures reliable connectivity for any setup.

Features:

• Closed-back circumaural design with excellent ambient noise attenuation
• ActiveGard® technology protects your hearing from unexpected signal spikes
• Handles high sound pressure levels (up to 123 dB) for demanding monitoring situations
• Comfortable viscoelastic earpads reduce fatigue during extended sessions
• Short coiled cable minimizes structure-borne noise
• Includes 3.5mm plug and screw-type 1/4" adapter
• Foldable design for easy storage and transport
• Detachable single-sided coiled cable for convenience and replacement

Technical Specifications:

• Type: Wired
• Open/Closed: Closed
• Fit Style: Circumaural (Around the Ear)
• Noise Attenuation: Passive Noise Isolating (up to 32 dB)
• Frequency Response: 6 Hz – 25 kHz
• Impedance: 64 Ω
• Connectivity: 1/8" plug, 1/4" adapter included
• Cable Type: Coiled, detachable
• Cable Length: 4.9 ft
• Features: ActiveGard® volume limiter, foldable design
• Color: Black
• Weight: 0.65 lbs
• Material: Viscoelastic earpads