Model Number

HSP-4

Style

Behind the neck headband over stainless steel band

Cups

ABS

Colour

Olive drab

Cabling

Main

Four independently wire lap screened conductors, PUR sheath

Length

900mm, part coiled

Intercup

Twisted pair, PUR sheath

Termination

Nexus TP-120B

Microphone

Boom

MB-102, Infinitely adjustable, field replaceable

Element

Noise cancelling electret condenser

Sensitivity

-71dB +/- 3.5dB @ 1kHz (0dB=1v/µbar)

Impedance

1.6k Ω +/- 30% @ 1kHz (RI= 2kΩ)

Response

300 to 4000Hz

Earphones

Type

Dynamic

Impedance

300 Ω x 2 wired in parallel

Response

300 to 3500Kz @ 1kHz +/-45Ω

Weight

357 grams (including standard plug)

SLC80 Rating

24 (Class 4)

SLC80 Rating24

CLASS 4

MASS 357g

CLAMP FORCE 10.8N

Test Frequency (Hz)

125

250

500

1000

2000

4000

8000

Mean Attenuation

11.4

13.8

22.9

29.9

32.3

34.4

40.6

Standard Deviation

6.6

5.0

4.2

4.6

3.8

4.1

4.9

Mean Minus SD

4.8

8.8

18.7

25.3

28.5

30.3

35.7