Daikin FF-C Technical Manual page 22

Sound Data
70
60
50
40
30
20
10
0
125
70
60
50
40
30
20
10
0
125
19
FH(Y)C25EXV1
250 500
Octave-band frequency (Hz)
FH(Y)C28EXV1
250 500
Octave-band frequency (Hz)
H
M
L
Q
1000 2000
H
M
L
Q
1000 2000
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
4000 8000
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
4000 8000