Mitsubishi Electric PLA-RP-AA Technical Data Book page 93

PMH-P25BA
90
80
70
60
50
40
30
20
APPROXIMATE THRESHOLD OF
HEARING FOR CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PMH-P50BA
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
SPL(dB) LINE
NOTCH
High 35
33
Medium1
Medium2 31
Low 29
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
SPL(dB) LINE
NOTCH
High 42
Medium1 40
Medium2 38
Low
36
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PMH-P35BA
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125
CEILING
93
SPL(dB)
NOTCH
High 40
38
Medium1
Medium2 36
Low
34
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
1.5m
MICROPHONE
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000
UNIT