19"

D B 73 dB

B B 73 dB

D A 72 dB

D A 69 dB

C B 71 dB

B C 72 dB

D A 73 dB

B B 71 dB

B A 71 dB

B B 73 dB

C B 70 dB

C B 72 dB

C A 69 dB

D A 74 dB

C B 71 dB

C B 72 dB

C B 71 dB

D B 71 dB

C E 69 dB