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5-6. Noise criterion curves
MXZ-SM72TAM-U1
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
MXZ-SM120TAM-U1
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
MICROPHONE
4 ft (1.5m)
OCH800A_30
SPL(dB)
MODE
COOLING
53
HEATING
54
125
250
500
1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
SPL(dB)
MODE
COOLING
61
HEATING
62
125
250
500
1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
UNIT
3 ft (1m)
GROUND
MXZ-SM96TAM-U1
LINE
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
10
63
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
SPL(dB)
MODE
COOLING
58
HEATING
59
125
250
500
1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
LINE
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
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