Specifications

CK10C/CR NC Curves
NC- 20
NC- 25
NC- 30
NC- 3 5
NC- 4 0
NC- 4 5
NC- 5 0
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band freque ncy (Hz)
Sound pressure level (dB, ref 20µPa)
Low Fan
Medium Fan
High Fan
CK15C/CR NC Curves
NC- 20
NC- 25
NC- 30
NC- 3 5
NC- 4 0
NC- 4 5
NC- 5 0
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
20