background image

500 Hz

250 Hz

1,000 Hz

4,000 Hz

2,000 Hz

20
15
10

5
0

-30

-25

-20

-15

-10

-5

dB

Hz

20

100

1k

10k

20k

2 ft. (0.6 m) from sound source

500 Hz

250 Hz

1,000 Hz

4,000 Hz

2,000 Hz

20
15
10

5
0

-30

-25

-20

-15

-10

-5

dB

Hz

20

100

1k

10k

20k

2 ft. (0.6 m) from sound source

CVB / C

CVB / O

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