User's Manual
Table 4 describes the dB signals for the LEDs.
Table 4. LEDs and dB signals
dB
Poor Fair Good Best
-114
-107 Off Off Off Off
-106
-104 Slow Off Off Off
-103
-101 Fast Off Off Off
-100
-98 On Off Off Off
-97
-95 On Slow Off Off
-94
-92 On Fast Off Off
-91
-89 On On Off Off
-88
-86 On On Slow Off
-85
-83 On On Fast Off
-82
-80 On On On Off
-79
-77 On On On Slow
-76
-74 On On On Fast
-73
Higher On On On On