Wind-Free 4Way Cassette (600x600)
27
7. Sound Data
Sound Pressure level
Unit: dB(A)
1.5m
Microphone
Model
High
MID
LOW
AC071NNNDKH/EU
42
39
36
•
NR Curve
5) AC071NNNDKH/EU
NR 65
NR 60
NR 55
NR 50
NR 45
NR 40
NR 35
NR 30
NR 25
NR 20
NR 15
High
Low
0
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
63
125
250
500
1000
2000
4000
8000
So
un
d
Pr
es
su
re
L
ev
el
(d
B)
Octave Band Center Frequency(Hz)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
NOTE
•
Specifications may be subject to change without prior notice.
- Sound pressure level is obtained in an anechoic room.
- Sound pressure level is a relative value, depending on the distance and acoustic environment.
- Sound pressure level may differ depending on operation condition.
- dBA = A weighted sound pressure level
-
Reference acoustic pressure 0 dB = 20μPa
