1 100 Ft / db
35 Ft – 45 Ft / db
50 Ft – 60 Ft / db
200 Ft – 250 Ft / db
80 Ft – 100 Ft / db
60 Ft – 80 Ft / db
160 Ft – 190 Ft / m
890 Ft / db
75 Ft – 180 Ft / db
45 Ft / db