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General properties for earphones
Sound attenuation values for earphones
Frequency
DD45 or TDH39 with MX41/
AR or PN 51 cushion
[Hz]
[dB]
125
3
160
4
200
5
250
5
315
5
400
6
500
7
630
9
750
800
11
1000
15
1250
18
1500
1600
21
2000
26
2500
28
3000
3150
31
4000
32
5000
29
6000
6300
26
8000
24
Attenuation
EAR-Tone 3A
[dB]
33,5
34,5
34,5
-
35,0
-
33,0
-
39,5
-
43,5
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