18"

D C 72 dB

C A 72 dB

B E 69 dB

A B 72 dB

C B 72 dB

D B 68 dB

D B 71 dB

A A 69 dB

D C 70 dB

C A 69 dB

B A 72 dB

C A 72 dB

C E 73 dB

B A 70 dB

C C 72 dB

C A 70 dB

C A 70 dB

C E 72 dB

A B 69 dB

B A 69 dB

C B 70 dB