Contents hide
SENNHEISER HMD 27 27 Series Broadcast Headset
In the box
Switching ActiveGard™
Switching ActiveGard™
Wearing the headset
Switching NoiseGard™
Single-sided listening
Using accessories
Replacing the headband
- Wearing with large headband padding
- Wearing with small headbands
- Remove both small headbands.
- Peel off the large headband padding.
- Collapse the split headband.
- Pull the headband carrefully apart.
- Mount the large headband padding.
- Mount the small headbands.
Replacing the ear pads
Cleaning 
Specifications
| HME 27 | HMD 27 | HMDC 27 | |
| Headphone | |||
| Transducer principle | dynamic, closed | ||
| Ear coupling | circumaural | ||
| Frequency response | 8 Hz – 18,000 Hz | ||
| Impedance | 64 Ω | 600 Ω ANR on / 200 Ω ANR off | |
| Power rating | 500 mW | ||
| Sensitivity | 112 dB SPL / 1 Vrms / 1 kHz Limiter off | 112 dB SPL / 1 Vrms / 1 kHz ANR on, Limiter off 107 dB SPL / 1 Vrms / 1 kHz ANR off, Limiter on/off | |
| Max. sound pressure level Limiter off | 128 dB SPL @ 1 kHz | 115 dB SPL @ 1 kHz ANR on 128 dB SPL @ 1 kHz ANR off | |
| Max. sound pressure level Limiter on | 110 dB SPL @ 1 kHz | 110 dB SPL @ 1 kHz ANR on/off | |
| Ambient noise reduction | ≤ 32 dB passive ANR off respectively | ||
| – | additonal ≤ 15 dB ANR on | ||
| Distortion | < 0.1% @ 1 kHz, 100 dB SPL | ||
| Power supply / consumption | – | Phantom powered P12-P48 12 V – 48 V, ≤ 10 mA | |
| Contact pressure | approx. 3.3 N | ||
Microphone
| Microphone | ||
| Type | BKE 10-4 | BMD 434 |
| Transducer principle | pre-polarized condenser microphone | dynamic |
| Directivity | cardioid | super-cardioid |
| Transmission rate | 40 – 20,000 Hz | 40 – 18,000 Hz |
| Sensitivity | 16 mV/Pa @ 1 kHz | 0.5 mV/Pa @ 1 kHz |
| Impedance | – | 300 Ω |
| Max. sound pressure level | 150 dB SPL, 1 kHz, 0.5% THD | – |
| Interface | Phantom-powered P12–P48 | – |
| Power supply | 12 V – 48 V | – |
| General Data | |
| Ambient temperature | Operation: -15 °C to +55 °C |
| Storage: -55 °C to +70 °C | |
| Weight without cable | approx. 240 g |
Sennheiser — Headphones, Microphones, Wireless Systems
