18"

D C 70 dB

B E 71 dB

B D 69 dB

B B 72 dB

C D 72 dB

D A 71 dB

C A 70 dB

B B 71 dB

E E 72 dB

B B 72 dB

C A 71 dB

C A 71 dB

E E 73 dB

D C 72 dB

D B 70 dB

B B 71 dB

B E 71 dB

C B 68 dB