0
10
20
30
40
50
60
70
80
125
250
500
1000
2000
4000
8000
Octave-band frequency (Hz)
So
und press
ur
e l
evel
(dB, ref 20
µ
Pa
)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
Low
Medium
High
Super high
NC-55
0
10
20
30
40
50
60
70
125
250
500
1000
2000
4000
8000
Octave-band frequency (Hz)
Soun
d
pres
sure lev
el (
dB
, ref
20
µ
Pa
)
NC-20
NC-30
NC-25
NC-35
NC-40
NC-45
NC-50
Low
Medium
High
Super high
11
Measured in anechoic room at 1.5m in front and 1m below the unit
MVF 030AR NC CURVES
Measured in anechoic room at 1.5m in front and 1m below the unit
MVF 040/050AR NC CURVES
