Mitsubishi Electric Mr.SLIM PLH Series Technical & Service Manual page 43

6. NOISE CRITERION CURVES
PLH-P1.6/2KAH
PLA-P1.6/2KA
90
80
70
60
50
40
30
APPROTIMATE
20
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
PLH-P3KAH
PLA-P3KA
90
80
70
60
50
40
30
APPROTIMATE
20
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
10
63 125 250
BAND CENTER FREQUENCIES, Hz
NOTCH SPL(dB) LINE
Hi 37
Mi2 35.5
Mi1 34
Lo 32
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
NOTCH SPL(dB) LINE
Hi 39
Mi2 37
Mi1 34
Lo 32
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
PLH-P2.5KAH
PLA-P2.5KA
90
80
70
60
50
40
30
APPROTIMATE
20
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
10
63 125
PLH-P4KAH
PLA-P4KA
90
80
70
60
50
40
30
APPROTIMATE
20
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
10
63 125
43
NOTCH SPL(dB)
Hi 39.5
Mi2 38
Mi1 36.5
Lo 35
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
NOTCH SPL(dB)
Hi 42
Mi2 39
Mi1 36
Lo 34
250 500 1000 2000 4000
BAND CENTER FREQUENCIES, Hz
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8000