19"

C A 72 dB

C A 72 dB

D A 73 dB

C D 72 dB

B A 72 dB

B A 69 dB

B A 71 dB

C B 70 dB

C B 72 dB

B A 71 dB

C A 72 dB

B A 70 dB

C C 68 dB

D B 71 dB

B A 71 dB

C A 71 dB

A B 71 dB

B C 71 dB

C C 72 dB

C A 72 dB

D A 71 dB

B A 70 dB

B A 73 dB

C A 70 dB