Freedom Series
Acoustical Enclosures
Noise Data & Diagrams
NOISE REDUCTION
Sound Level in db (A)
Decibles "A" Weighted
Frequency
125Hz
250 Hz
500 Hz
1000 Hz
2000 Hz
4000 Hz
8000 Hz
Exterior
Sound
87
87
88
88
88
83
82
Freedom
Acoustical
19
13
28
19
23
23
22
Random Noise (2 Hz to SO kHz) 17
