ASUW2438UH1(LAU246HV)
ASUW2435SZ1(LSU246HV)
ASUW303DGH1(LSU306HV)ASUW1838UH1(LAU186HV)
ASUW243DGU1(LSU240HSV)
ASUW363DGU1(LSU360HV)
ASUW303DGU1(LSU307HV)
10 
20 
30 
40 
50 
60 
70 
80 
63 125 250 500 1000 2000 4000 8000 
NC-15 
NC-20 
NC-25 
NC-30 
NC-35 
NC-40 
NC-45 
NC-50 
NC-55 
NC-60 
NC-65 
Approximate 
Hearing  
Threshold 
Octave Band Sound Pressure Level (dB re 20µPa ) 
Octave Band Center Frequency (Hz) 
10 
20 
30 
40 
50 
60 
70 
80 
63 125 250 500 1000 2000 4000 8000 
NC-15 
NC-20 
NC-25 
NC-30 
NC-35 
NC-40 
NC-45 
NC-50 
NC-55 
NC-60 
NC-65 
Approximate 
Hearing  
Threshold 
Octave Band Sound Pressure Level (dB re 20µPa ) 
Octave Band Center Frequency (Hz) 
Octave Band Sound Pressure Level (dB re 20µPa ) 
Octave Band Center Frequency (Hz) 
Octave Band Sound Pressure Level (dB re 20µPa ) 
Octave Band Center Frequency (Hz) 
Octave Band Sound Pressure Level (dB re 20µPa ) 
Octave Band Center Frequency (Hz) 
10 
20 
30 
40 
50 
60 
70 
80 
63 125 250 500 1000 2000 4000 8000 
NC-15 
NC-20 
NC-25 
NC-30 
NC-35 
NC-40 
NC-45 
NC-50 
NC-55 
NC-60 
NC-65 
Approximate 
Hearing  
Threshold 
10 
20 
30 
40 
50 
60 
70 
80 
63  125  250  500  1000 2000 4000 8000 
 S/High 
 High 
 Low 
Approximate 
Hearing  
Threshold 
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
10 
20 
30 
40 
50 
60 
70 
80 
63  125  250  500  1000 2000 4000 8000 
Approximate 
Hearing  
Threshold 
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15