Sennheiser HMD 280 PRO manual HMD 280 pro, Headsets Communications Headset, Cat No, Features

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