Emerald LCU-07, Technical Manual

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LCU-24 CURVES
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
High fan
Medium fan
Low fan
LCU-30 CURVES
0
10
20
30
40
50
60
70
125 250 500 1000 2000 4000 8000
Octave-band frequency (Hz)
Sound pressure level
NC-30
NC-20
NC-40
NC-25
NC-45
NC-35
NC-50
High fan
Medium fan
Low fan