1
5
0
-5
-10
100
200
500
1 kHz
2
4
5
8 10 12 16 20
10
40
5 dB
On-axis
5
0
-5
-10
100
200
500
1 kHz
2
4
5
8 10 12 16 20
10
40
5 dB
On-axis
5
0
-5
-10
100
200
500
1 kHz
2
4
5
8 10 12 16 20
10
40
5 dB
On-axis
Fig. 14. Response characteristics of APE L0B (top), APE L40B and
APE L50B, fitted on 4006.