Husqvarna X-SYNC - Noise Attenuation Standards (Au;NZs)

Frequency,
Hz
Mean
attenuation,
dB
Standard
deviation, dB
Mean -
standard
deviation
125 250 500 1000
2000 4000 8000
5.3 5.4 7.9 5.7
4.2 5.6 8.1
SLC 80
Class
Helmet mounted
Clamping force 11.1 N
Au/NZs 1270
15.9
20.4 26.2 34.8
38.2
34
35.9
10.6
15 18.3 29.1
34
28.4
27.8
Class 5
26.2
Frequency,
Hz
Mean
attenuation,
dB
Standard
deviation, dB
Mean -
standard
deviation
125 250 500 1000
2000 4000 8000
3.4 3.3 3.4 2.3
2.7 2.5 3.9
SLC 80
Class
Headband style
Clamping force 11.1 N
Au/NZs 1270
21
24.2 30.1 35.1
37.4
35.8
37.8
17.6
20.9 26.7 32.8
34.7
33.3
33.9
Class 5
32.1
2146 - 003 - 15