Mitsubishi Electric PLA-RP-AA Technical Data Book page 97

PKA-RP60FAL
PKA-RP71FAL
PKH-P60FALH
PKH-P71FALH
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
NOTCH SPL(dB) LINE
High 45
Low
39
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
UNIT
1m
MICROPHONE
PKA-RP100FAL
PKH-P100FALH
90
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
WALL
1m
97
NOTCH
High
Low
125 250 500 1000 2000
BAND CENTER FREQUENCIES, Hz
SPL(dB) LINE
46
41
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
4000 8000