19"

B A 72 dB

A A 72 dB

D A 72 dB

A A 72 dB

B B 72 dB

D B 71 dB

B C 72 dB

C A 71 dB

C A 73 dB

C A 72 dB

C C 73 dB

C B 73 dB

A A 70 dB

B A 70 dB

A B 70 dB

A A 71 dB

C E 71 dB

B B 72 dB

D B 71 dB

B A 72 dB

D A 72 dB

D A 72 dB

A C 73 dB

C A 71 dB