18"

C A 71 dB

D A 71 dB

C A 71 dB

A D 68 dB

D A 72 dB

C A 71 dB

E E 72 dB

C C 71 dB

A B 69 dB

C C 72 dB

A B 69 dB

A A 70 dB

D B 70 dB

B B 72 dB

A A 68 dB

D E 72 dB

C C 71 dB

C A 72 dB

B A 70 dB

B A 69 dB

C A 72 dB

C A 71 dB

A C 71 dB

B A 71 dB