Interacoustics Callisto Instructions D'utilisation page 372

Callisto RETSPL-HL Tabel
Sound attenuation values for earphones
TDH39/DD45 with
MX41/AR or PN 51
Cushion
Frequency
[dB]*
[Hz]
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
*ISO 8253-1 2010
Attenuation
EAR 3A IP30
DD65v2
EAR 5A
[dB]*
33
34
35
36
37
37
38
37
37
37
35
34
33
35
37
40
41
42
43
HDA200
[dB] [dB]*
8.3 15
8.7 15
11.7 16
15.5 16
19.5 18
23.4 20
26.1 23
28.5 25
28.2 27
32.4 29
30.8 30
33.7 31
43.6 32
47.5 37
41.5 41
43.8 46
46.7 45
45.7 45
45.6 44
HDA300
[dB]
12.5
12.7
9.4
12.8
15.1
28.8
26.2