Air Motion Transformer-eng.indd

110
100
90
80
70
60
800 900 1k 2k 3k 4k 5k 6k 7k 8k 9k10k 20k 30k
Hz
Phase
180
dB
90
00
-90
1.8
1.6
1.4
1.2
1.0
[%]
0.8
0.6
0.4
0.2
0.0
1k 2k 3k 4k 5k 6k 7k 8k 9k 10k
signal K2 K3 [Hz]
AMT 2340 - ATB Precision
0
AMT 2340 - SPL 0.1 m / 1 m - 2 Volt
-180
800 900 1k 2k 3k 4k 5k 6k 7k 8k 9k10k 20k 30k
Hz
AMT 2340 - ATB Precision
0.3 0.4 0.5 0.6 0.7 ms 0.8 0.9 1.0 1.1 1.2
0 dB
-50 dB
[db]
-5
-10
-15
AMT 2340 - ATB Waterfal
-20 00 10000
-80
-70
-60
Diagrams of: AMT 2340
4 2
6
8
10
12
14
16
18
20
[Hz]
measuring ���������� equipment ��� �������� � � ���
microphone �������� ��������� ������ �� ���
��������� ������ �� ���
��������� ������ �� ���
rotary ��������� table ������� � �� � � �� �
computer �������� �������� � � ������� � � � ���
Amplifi �������������� er
���� ��� ������
���� �� ��� ��� � � �� ���� � � ���
� � ��� ���� � � ���
The driver ��� ������������ unit was mounted ����� on a ��baffl ����� e 30 ���������� x 30 cm with �� an �additional �� ��
volume. �� The ����� volume ���encloses �� ������ the magnet ������� system � ��� and ���� 15 �������� mm of felt (33 � mm
total depth x 90 mm x 150 mm).
-50
-40
-30
-20
-90
2 0 -2 -4 -6 -8 -10
AMT 2340 - ATB Precision 0.2 m
-10
0
1 kHz
10
-10
20
30
40
-8 -6 -4 -2
Attention: on the scale of 2dB
50
0
60
70
[periods]
80
-80
-90
2 0 -2 -4 -6 -8 -10
-80
-70
-70
-60
-60
-50
-50
-40
-40
-30
-30
-20
-20
-10
-90
2 0 -2 -4 -6 -8 -10
-80
-70
-60
-50
-40
-30
-20
2
90 -90
2 0 -2 -4 -6 -8 -10
AMT 2340 - ATB Precision 0.2 m
-10
5 kHz
0 10
10 kHz
0 10
-10
AMT 2340 - ATB Precision 0.2 m
-10
0
-10
AMT 2340 - ATB Precision 0.2 m
20
20
30
30
40
-8 -6 -4 -2
Attention: on the scale of 2dB
40
-8 -6 -4 -2
Attention: on the scale of 2dB
10
-10
20
30
40
-8 -6 -4 -2
20 kHz Attention: on the scale of 2dB
50
50
50
0
0
0
60
60
60
70
70
80
90
2
80
90
2
70
80
90
2