Specifications

48
M(4)RT 360A/AR NC CURVES
NC Curves
Octave-band frequency (Hz)
M(4)RT 420A/AR NC CURVES
NC Curves
10
20
30
40
50
60
70
80
125 250500 1000 2000 4000 8000
NC 70
NC 45
NC 50
NC 55
NC 60
NC 65
NC 20
NC 25
NC 30
NC 35
NC 40
Sound pressure level (dB, ref 20 Pa)
Octave-band frequency (Hz)
10
20
30
40
50
60
70
80
125250 500 1000 2000 4000 8000
02 fer ,Bd( level erusserp dnuoS )aP
NC70
NC45
NC50
NC55
NC60
NC65
NC20
NC25
NC30
NC35
NC40