Sennheiser HMD 280 PRO Technical Data

HMD 280 pro
Headsets | Communications Headset
General Description
The HMD 280 pro headset has been specially designed for communica-
tions in high-noise environments. Its dynamic, super-cardioid microphone
has been optimised for close talking distances.
Features
Noise-compensated microphone with extremely low handling noise
Microphone can be worn on either left or right-hand side
Easily replaceable, single-sided coiled cable
Very good attenuation of background noise
Space-saving design with rotating earpieces
Replaceable parts for long life
Lightweight design
Delivery includes: 1 HMD 280 pro
1 windshield
Replacement Parts
Ear pads (1 pair)
Headband padding
Connection cable
Windshield
Product Variants
HMD 280-13: as HMD 280 pro, but with 300 Ω
headphone impedance
HMD 281 pro: as HMD 280 pro, but single-sided
headphone, weight (w/o cable): approx. 245 g
HMD 281-13: as HMD 281 pro, but with
300 Ω head phone impedance
Technical Data
Headphones
Transducer principle..............................................................dynamic
Ear coupling ........................................................ circumaural, closed
Frequency response ....................8 – 25,000 Hz (–10 dB / 1 kHz)
Sound pressure level............................. 102 dB (as per IEC 268-7)
Attenuation .......................................................................max. 32 dB
Nominal impedance ...............................................64 Ω per system
Load rating.................................................................................. 0.5 W
THD ............................................................................................ < 0.1 %
Contact pressure.............................................................. approx. 6 N
Weight (w/o cable) .....................................................approx. 310 g
Microphone
Transducer principle..............................................................dynamic
Frequency response ................................................. 50 – 13,500 Hz
Pick-up pattern ...........................................................super-cardioid
Sensitivity (free field, no load, 1 kHz).............................. 1 mV/Pa
Nominal impedance ................................................................. 200 Ω
Connections
Connection cable...................................unterminated coiled cable,
Microphone frequency response (near field)
measured with B&K 4219 artificial mouth
-62.5
dB
(V/Pa)
Cat. No. 085733
Cat. No. 083321
-100
Cat. No. 082072
Cat. No. 083411
Microphone Pick-up Pattern
Cat. No. 004977
Cat. No. 004978
Cat. No. 004979
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
200 500
90 1k
Cat No. 004976
min. 1 m/max. 3 m
2k 10k 20k
5k
Hz