Specifications

CK20C/CR NC Curves
NC- 2 0
NC- 2 5
NC- 3 0
NC- 35
NC- 40
NC- 45
NC- 50
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level (dB, ref 20µPa)
Low Fan
Medium Fan
High Fan
21