Shure B1 manual Beta 181/C, Beta 181/S, Beta 181/O, Beta 181/BI

Beta 181/C

dB

+20

+10

0

–10

-20

20 50 100

150°

180°

150°

150°

180°

150°

120°

120°

120°

120°

90°

–20 dB

90°

90°

–20 dB

90°

–15 dB

–15 dB

60°

–10 dB

60°

60°

–10 dB

60°

–5 dB

–5 dB

30°

+5 dB

30°

30°

+5 dB

30°

2

3

4 5 6 789

2

3

4 5 6 789

20000

1000

10000

250 Hz

2500 Hz

Hz

500 Hz

6400 Hz

1000 Hz

10000 Hz

Beta 181/S

dB

+20

+10

0

–10

-20

20 50 100

150°

180°

150°

150°

180°

150°

120°

120°

120°

120°

90°

–20 dB

90°

90°

–20 dB

90°

–15 dB

–15 dB

60°

–10 dB

60°

60°

–10 dB

60°

–5 dB

–5 dB

30°

+5 dB

30°

30°

+5 dB

30°

2

3

4 5 6 789

2

3

4 5 6 789

20000

1000

10000

250 Hz

2500 Hz

Hz

500 Hz

6400 Hz

1000 Hz

10000 Hz

Beta 181/O

dB

+20

+10

0

–10

-20

20 50 100

150°

180°

150°

150°

180°

150°

120°

120°

120°

120°

90°

–20 dB

90°

90°

–20 dB

90°

–15 dB

–15 dB

60°

–10 dB

60°

60°

–10 dB

60°

–5 dB

–5 dB

30°

+5 dB

30°

30°

+5 dB

30°

2

3

4 5 6 789

2

3

4 5 6 789

20000

1000

10000

250 Hz

2500 Hz

Hz

500 Hz

6400 Hz

1000 Hz

10000 Hz

Beta 181/BI

dB

+20

+10

0

–10

-20

20 50 100

150°

180°

150°

150°

180°

150°

120°

120°

120°

120°

90°

–20 dB

90°

90°

–20 dB

90°

–15 dB

–15 dB

60°

–10 dB

60°

60°

–10 dB

60°

–5 dB

–5 dB

30°

+5 dB

30°

30°

+5 dB

30°

2

3

4 5 6 789

2

3

4 5 6 789

20000

1000

10000

250 Hz

2500 Hz

Hz

500 Hz

6400 Hz

1000 Hz

10000 Hz

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