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Adjusting the sound amplification
To amplify the sound, once your headset is turned on, simply continue turning the button ON/OFF situated
on the right cup in a clockwise direction. Low environmental noises will be amplified up to three times, if
you turn the button up to the maximum.
Noise attenuation (according to the standard EN 352-1: 2002)
On average, the NUM'AXES headset attenuates noises that are dangerous for your hearing by 27 dB.
Minimum Sound Attenuation (according to the standard EN 352-1: 2002)
SNR = 27 dB
H = 31 dB
Frequency
[Hz]
63
125
250
500
1000
2000
4000
8000
Sound pressure level (according to the standard EN 352-4: 2001 + A1: 2005)
H = 110 dB
M = 97 dB
Electrical audio input (according to the standard EN 352-8: 2008 and regulation 2016/425/EU)
This product has an electric audio input. The headset limits the entertainment audio signal to 82dB(A)
effective to the ear only if the audio input voltage is below 215 mV (-11.1 dBm).
The product shall not to be used if it can't be ensured that the input voltage doesn't exceed the maximum
value stated above.
In case of malfunction
Before determining that there is a malfunction with the product, make sure you go through this guide
once again and ensure that the problem is not due to weak batteries or user error.
Guide d'utilisation CAS1034 B – Indice E – novembre 2023
M = 24 dB
L = 17 dB
Sound attenuation
[dB]
15.7
14.1
16.9
24.9
30.8
30.6
38.7
36.8
L = 91 dB
Standard
APV
deviation
[dB]
[dB]
3.4
12.3
3.3
10.8
2.3
14.6
2.4
22.5
2.7
28.1
2.2
28.4
3.8
34.9
4.1
32.7
15/60
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