20"

C C 73 dB

C A 73 dB

C A 72 dB

A A 75 dB

A A 75 dB

C B 71 dB

E C 72 dB

D C 72 dB

B C 72 dB

C C 70 dB

C C 72 dB

C D 69 dB

C C 72 dB

C C 72 dB

C A 72 dB

C C 71 dB

D A 72 dB

C A 73 dB

B A 73 dB

C A 74 dB

B B 72 dB

C A 70 dB

B B 73 dB