18"

A A 70 dB

E E 72 dB

C A 70 dB

D C 72 dB

C A 71 dB

D A 72 dB

D B 71 dB

D C 71 dB

D C 73 dB

D C 72 dB

E E 71 dB

C B 73 dB

D B 72 dB

C A 69 dB

C B 72 dB

C A 70 dB

C A 72 dB

C A 71 dB

C E 72 dB

D D 72 dB

D C 72 dB

C B 71 dB

C B 73 dB