19"

C B 71 dB

C A 70 dB

E B 71 dB

D C 72 dB

A A 70 dB

A A 70 dB

D E 72 dB

C B 72 dB

C B 71 dB

C B 72 dB

D E 73 dB

C A 72 dB

C B 71 dB

C E 72 dB

D E 73 dB

D E 73 dB

A A 72 dB

B A 72 dB

C A 70 dB

D B 70 dB

D B 71 dB

C B 71 dB

C D 73 dB

C A 71 dB