18"

C B 72 dB

C A 70 dB

C A 72 dB

C B 71 dB

D B 71 dB

C C 71 dB

B B 71 dB

C A 72 dB

B B 71 dB

C C 72 dB

C B 73 dB

C B 72 dB

C C 71 dB

C B 73 dB

E E 73 dB

B B 68 dB

C C 70 dB

C A 71 dB

C B 69 dB