Sound Pressure Data -Cassettes - Friedrich FPHFR9A3A Service & Parts Manual

Sound Pressure Data -Cassettes

Model
9K
Test condition
90
80
70
60
50
40
30
Lo
20
10
63 125 250
Model 18K
Test condition
33
SPECIFICATIONS
Hi
Me
500 1k 2k 4k
Model
12K
Test condition
90
80
70
NC-70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
Lo
NC-35
30
NC-30
NC-25
20
NC-20
NC-15
10
63 125
8k
Model
Test condition
90
80
70
60
50
40
30
20
10
63
Figure 221
Hi
Me
250 500 1k
24K
Hi
Lo
125 250 500 1k
NC-70
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
2k 4k 8k
NC-70
NC-65
NC-60
NC-55
NC-50
NC-45
Me
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
2k 4k 8k