19"

C C 70 dB

E C 75 dB

B C 73 dB

D B 73 dB

C C 70 dB

D C 72 dB

C B 73 dB

B D 72 dB

C B 73 dB

C A 73 dB

C B 72 dB

D A 75 dB

C B 70 dB

D B 73 dB

C A 72 dB

D B 73 dB

C C 73 dB