Specifications
 Page 64 
                                   MCA3I-07HRFNX-QRD0
MCA3I-09HRFN8-QRD0                                                MCA3U-12HRFNX-QRD0W
0
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level /dB (0dB = 0.0002
μbar) 
Band Center Frequency /Hz
H M L
NC-70
NC-60
NC-50
NC-40
NC-30
 
0
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level /dB (0dB = 0.0002
μbar) 
Band Center Frequency /Hz
H M L
NC-70
NC-60
NC-50
NC-40
NC-30
 
MCA3U-18HRFNX-QRD0W
0
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level /dB (0dB = 0.0002
μbar) 
Band Center Frequency /Hz
H M L
NC-70
NC-60
NC-50
NC-40
NC-30