2
TESTED ACCORDING TO EN 3521 : 2003
Frequency, Hz *D1 125 250 500 1000 2000 4000 8000 SNR
Mean Attenuation, dB *D2 x x x x x x x
xStandard Deviation, dB *D3 x x x x x x x
Mean-minus standard deviation, dB *D4 x x x x x x x
H = x M = x L = x
Headband Force: Small = 10.1N, Medium = 11.0N, Large = 9.9N *D5
*C9
*C10
(C) Operating the headset – Headset controls
D – Test results and technical data
Criterion levels *D6
H=107 dBA
M=106 dBA
L=106 dBA
*D7
*D8
60
65
70
75
80
85
90
Internal Level dB(A)
External Level dB(A)
50 55 60 65 70 75 80 85 90 95 100 105 110
L–Noise
M–Noise
H–Noise