LG ARNU 073 SER2 Engineering Manual page 25

Figure 8: ARNU153SER2, ARNU183S8R2, and ARNU243S8R2 Sound Pressure Level Diagrams.
ARNU153SER2
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
ARNU183S8R2
80
70
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25 20
Approximate
NC-20
Hearing
Threshold
NC-15
10
63 125
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aRt cool
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
MIRRoR
tM
Acoustic data
Sound Pressure levels
ARNU243S8R2
80
70
60
50
40
30
20
Approximate
Hearing
Threshold
10
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequency (Hz)
Art Cool
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
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tM