Unit installation

Measured in anechoic room at 1.5m below the facia
56
M5CKWS020CR NC CURVE
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB,reference 20µPa)
NC-20
NC-35
NC-50
NC-25
NC-30
NC-45
NC-40
M
L
H