19"

B B 69 dB

C A 72 dB

B A 70 dB

D E 71 dB

A A 71 dB

C C 72 dB

C A 72 dB

C A 72 dB

C A 70 dB

B A 69 dB

C C 73 dB

C B 71 dB

D E 71 dB

A A 69 dB

B A 72 dB

A B 70 dB

A A 70 dB

B A 72 dB

A C 70 dB

B B 73 dB

C C 72 dB

D A 71 dB

B B 71 dB