Sennheiser HMD 300 Broadcast Headset
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Description
The Sennheiser HMD 300 is a closed circumaural broadcast and intercom headset with a hypercardioid dynamic boom microphone based on the HD 300 monitoring platform. Switchable ActiveGard limits peaks above 110 dB SPL while 64 Ω transducers cover 60 - 25,000 Hz for clear program feeds. Switched (HMD 300 S) and cable-variant SKUs such as HMD 300 X3K1 appear in the catalog.
Features
- HD 300 family monitoring with BMD 404 boom microphone
- ActiveGard switchable limiting at 110 dB SPL
- 64 Ω headphones; 300 Ω dynamic mic
- HMD 300 S switched and X3K1 cable variants in catalog
- Replaceable cushions and cables for rental fleets
Specifications
- Headphones transducer: Dynamic, closed
- Ear coupling: Circumaural
- Headphone frequency response: 60 - 25,000 Hz
- Headphone impedance: 64 Ω
- Characteristic SPL: 108 ±3 dB SPL / 1 Vrms / 1 kHz (limiter off)
- Max SPL: 123 dB SPL at 1 kHz (ActiveGard off); 110 dB SPL (ActiveGard on)
- Ambient noise attenuation: ≤ 32 dB
- THD: < 0.1 % at 1 kHz, 94 dB SPL
- Contact pressure: approx. 6.0 N
- Microphone type: BMD 404 dynamic, noise-canceling
- Microphone pattern: Hypercardioid
- Microphone frequency response: 80 - 16,000 Hz (near field)
- Microphone sensitivity: 0.4 mV/Pa at 1 kHz
- Microphone impedance: 300 Ω
- Cable length: approx. 1.55 m (5.09 ft) on cable variants
- Transducer: Dynamic
- Polar pattern: Hypercardioid
In the Box
- HMD 300 Headset (cable not included)
- Windscreen
- Pouch
- Quick guide
- Safety guide