Specifications

57
4. SOUND DATA
AMAC25C/CR, A4AC25C, A5AC25CR
NC CURVE
0
10
20
30
40
50
60
70
80
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound Pressure level (dB, ref 20µPa)
AMAC20C/CR , A4AC20C, A5AC20CR
NC CURVE
0
10
20
30
40
50
60
70
80
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound Pressure level (dB, ref 20µPa)
NC-30
NC-60
NC-40
NC-35
NC-4
5
NC-50
NC-55
NC -60
NC -55
NC -50
NC -45
NC -40
NC - 35
NC-30