Interacoustics Callisto - Page 72

Callisto RETSPL-HL Tabel
Sound attenuation values for earphones
Attenuation
TDH39/DD45 with
MX41/AR or PN 51
Cushion
EAR 3A IP30
EAR 5A
DD65v2 HDA200 HDA300
Frequency
[Hz]
[dB]* [dB]* [dB] [dB]* [dB]
125
3
33
8.3
15
12.5
160
4
34
8.7
15
200
5
35
11.7
16
250
5
36
15.5
16
12.7
315
5
37
19.5
18
400
6
37
23.4
20
500
7
38
26.1
23
9.4
630
9
37
28.5
25
750
-
800
11
37
28.2
27
1000
15
37
32.4
29
12.8
1250
18
35
30.8
30
1500
-
1600
21
34
33.7
31
2000
26
33
43.6
32
15.1
2500
28
35
47.5
37
3000
-
3150
31
37
41.5
41
4000
32
40
43.8
46
28.8
5000
29
41
46.7
45
6000
-
6300
26
42
45.7
45
8000
24
43
45.6
44
26.2
*ISO 8253-1 2010