Overview
The Sennheiser HD 300 PROtect Closed-Back Active Gard Studio Monitor Headphones are designed for musicians, audio engineers, and event staff who need high-resolution audio reproduction and peak level protection. These over-ear studio monitor headphones feature precision-diaphragm dynamic drivers that deliver a wide frequency response and low distortion.
Core Features
With a maximum SPL of 123 dB, these headphones ensure powerful and accurate sound. The Active Gard hearing protection technology limits levels above 110 dBA for safe listening, even when source volumes are unpredictable.
Design & Comfort
The circumaural closed-back design provides up to 32 dB of passive isolation from ambient noise. These headphones offer comfort with thick ear cushions and headband padding for long listening sessions.
Control & Connectivity
The detachable cable is 1.5 meters long and can be replaced with other Sennheiser modular cables. An included 6.35 mm TRS adapter allows easy connectivity with mixers, headphone amplifiers, and audio interfaces.
Portability
The HD 300 PROtect headphones can be folded for compact storage and transport.
Specifications
Driver Type | Dynamic |
Design | Over-Ear (Circumaural) |
Earcup Style | Closed-Back |
Frequency Response | 6 Hz to 25 kHz |
Sensitivity | 108 dB at 1 kHz |
Impedance | 64 Ohms |
Maximum Sound Pressure Level (SPL) | 123 dB at 1 kHz |
Maximum Power Handling | 500 mW |
Total Harmonic Distortion (THD) | 0.1% |
Active Noise Cancellation | No |
Noise Attenuation | Up to 32 dB |
Volume Limiting | 110 dB |
Foldable | Yes |
Contact Pressure | 6 N |
Audio Connector | 1/8" / 3.5 mm TRS Straight |
Included Adapter | 1/4" TRS |
Connector to Earpiece | 1x Proprietary |
Cable Design | Single-Sided |
Cable Colour | Black |
Detachable | Yes |
In-Line Remote/Microphone | No |
Cable Length | 1.5 m (Unbalanced) |
Weight | 297 g without Cable |
What's Included
- Sennheiser HD 300 PROtect Closed-Back Active Gard Studio Monitor Headphones
- 1.5 m Headphone Cable
- 6.35 mm Adapter
- Barcode: 83234
- UPC Barcode: 615104272170
- Supplier Code: 506898