20"

C A 72 dB

D C 71 dB

C A 71 dB

D C 72 dB

D C 72 dB

C D 72 dB

D E 71 dB

C A 71 dB

C A 72 dB

D C 72 dB

C B 75 dB

A C 73 dB

C A 72 dB

C B 70 dB

C A 72 dB

C D 73 dB

B D 73 dB

C A 72 dB

C B 75 dB