Shure BETA 91A manual 20,3 mm 0.8, Beta 91A

dB

120°

90°

60°

Beta 91A

+20

61 cm (2 ft.) from sound source

+10

0
–10
	EQ
-20		2	3	4 5 6 789	2	3	4 5 6 789
20	50							20000
		100		1000			10000
				Hz
	180°						180°

150°

150°

150°

150°

120°

120°

120°

90°

90°

90°

–20 dB

–20 dB

–15 dB

–15 dB

–10 dB

60°

60°

–10 dB

60°

–5 dB

–5 dB

30°

0

30°

30°

0

30°

250 Hz

6300 Hz

500 Hz

10000 Hz

1000 Hz

)

.

n

i

4

7

.

3

(

m

m

1

1

,

5

9

20,3 mm (0.8 in.)

13	9,
	1

m

m

(
5.
	48	i
		n
		.)

21