19"

C B 70 dB

C A 72 dB

C C 73 dB

C D 69 dB

C A 72 dB

C B 68 dB

B A 70 dB

C A 72 dB

A B 73 dB

D C 71 dB

C A 72 dB

B B 71 dB

D C 70 dB

D C 70 dB

D D 70 dB

C C 71 dB

C E 71 dB

B E 70 dB

C A 71 dB

D B 71 dB

C A 72 dB

A C 73 dB