Diagram

250 Hz
500 Hz
1K Hz
2K Hz
4K Hz
8K Hz
16K Hz
0
-10
-20
-30
dB
0
30
60
90
120
150
180
O
O
O
O
O
O
O
0
30
60
90
120
150
180
O
O
O
O
O
O
O
20
50 100 200 500 1k 2k 5k 10k 20k
0
10
20
-10
-20

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