3M BK4936, Version A: QE7052 Self Generated Noise

Page 4 Self Generated Noise
Broadband
053-469 RevC
SoundPro models SE and DL Data Addendum
Self Generated Noise
Broadband
Table A.4 - Fast Response
When using 18 pF, 50 Ohm Termination
Table A.5- Slow Response
When using 18 pF, 50 Ohm Termination
SPL
LEQ
Range
(dB)
A
Weighting
(dB)
C
Weighting
(dB)
Z
Weighting
(dB)
F
Weighting
(dB)
A
Weighting
(dB)
C
Weighting
(dB)
Z
Weighting
(dB)
F
Weighting
(dB)
-20 to 70
19.9
27.3
31.4
36.0
19.9
27.3
31.5
35.7
-10 to 80
19.9
27.3
31.3
36.0
19.9
27.4
31.4
36.0
0 to 90
19.9
27.3
31.6
36.0
19.9
27.3
31.5
35.9
10 to 100
20.0
27.2
31.5
35.7
20.0
27.2
31.5
35.7
20 to 110
20.9
27.6
31.3
35.8
20.9
27.5
31.5
36.0
30 to 120
25.3
28.8
32.3
35.7
25.3
28.8
32.1
35.7
40 to 130
33.3
33.6
35.0
37.2
33.2
33.6
34.9
37.0
50 to 140
42.2
41.7
42.0
42.2
42.2
41.7
41.9
42.2
80 to 170
77.9
77.6
77.6
77.7
78.5
77.8
77.9
78.4
SPL
LEQ
Range
(dB)
A
Weighting
(dB)
C
Weighting
(dB)
Z
Weighting
(dB)
F
Weighting
(dB)
A
Weighting
(dB)
C
Weighting
(dB)
Z
Weighting
F
Weighting
-20 to 70
19.9
27.2
31.4
35.9
19.9
27.5
31.8
36.0
-10 to 80
19.9
27.0
31.4
36.3
19.9
27.2
31.6
36.3
0 to 90
19.9
27.2
31.5
34.9
19.9
27.2
31.2
35.9
10 to 100
20.0
27.3
31.0
35.9
20.0
27.3
32.0
36.0
20 to 110
20.9
27.2
31.7
34.0
20.9
27.4
31.2
36.2
30 to 120
25.3
28.8
31.7
36.5
25.2
28.8
32.1
36.2
40 to 130
33.1
33.7
34.6
37.1
33.1
33.8
34.9
37.4
50 to 140
41.9
41.9
41.9
42.4
42.0
42.0
42.0
42.4