Sennheiser HMD 280 PRO manual General Description, Features, Technical Data Headphones

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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

Cat No. 004976

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,

 

 

min. 1 m/max. 3 m

Microphone frequency response (near field) measured with B&K 4219 artificial mouth

Replaceable parts for long life

Lightweight design

￿Delivery includes: 1 HMD 280 pro

1 windshield

 

Replacement Parts

 

Ear pads (1 pair)

Cat. No. 085733

Headband padding

Cat. No. 083321

Connection cable

Cat. No. 082072

￿Windshield

Cat. No. 083411

 

-50

 

 

 

 

 

 

 

 

 

 

-55

 

 

 

 

 

 

 

 

 

 

-60

 

 

 

 

 

 

 

 

 

 

-62.5

 

 

 

 

 

 

 

 

 

 

-65

 

 

 

 

 

 

 

 

 

dB

-70

 

 

 

 

 

 

 

 

 

(V/Pa)

 

 

 

 

 

 

 

 

 

 

-75

 

 

 

 

 

 

 

 

 

 

-80

 

 

 

 

 

 

 

 

 

 

-85

 

 

 

 

 

 

 

 

 

 

-90

 

 

 

 

 

 

 

 

 

 

-95

 

 

 

 

 

 

 

 

 

 

-100

90

200

500

1k

Hz

2k

5k

10k

20k

Microphone Pick-up Pattern

Product Variants

HMD 280-13: as HMD 280 pro, but with 300 Ω

 

headphone impedance

Cat. No. 004977

HMD 281 pro: as HMD 280 pro, but single-sided

 

￿headphone, weight (w/o cable): approx. 245 g

Cat. No. 004978

HMD 281-13: as HMD 281 pro, but with

 

300 Ω headphone impedance

Cat. No. 004979

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