Specifications
 Page 62 
                           MTIU-07HWFNX-QRD0W  
MTIU-09HWFNX-QRD0W                                                      MTIU-12HWFNX-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 = 0.0002μbar) 
Band Center Frequency /Hz
H M L
 
0
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound  Pressure Level /dB (0dB = 0.0002μbar) 
Band Center Frequency /Hz
H M L
MTIU-18HWFNX-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