Table 4 – sound performance table – Bryant LEGACY 558J User Manual
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Table 4 – SOUND PERFORMANCE TABLE
UNIT
OUTDOOR SOUND (dB)
A---Weighted
63
125
250
500
1000
2000
4000
8000
04
80
90.6
80.9
80.2
76.0
74.6
71.3
68.5
63.9
05
81
90.9
84.6
79.5
77.9
76.5
71.1
66.9
62.5
06
78
84.0
82.2
76.3
74.8
72.5
68.8
65.6
61.8
07
78
88.8
81.8
76.9
74.4
73.3
69.8
66.3
62.7
LEGEND
dB --- Decibel
NOTES:
1. Outdoor sound data is measure in accordance with ARI
standard 270---95.
2. Measurements are expressed in terms of sound power.
Do not compare these values to sound pressure values
because sound pressure accounts for specific environ-
mental factors which do not match individual applica-
tions. Sound power values are independent of the envir-
onment and therefore more accurate.
3. A---weighted sound ratings filter out very high and very
low frequencies, to better approximate the response of
“average” human ear. Bryant’s A---weighted measure-
ments are taken in accordance with 270---95.
558J