LS-25(T) WEATHERPROOF SPEAKER
User Manual
armtel.com
page 23/24
© Armtel
ENG
APPENDIX
А
(REFERENCE)
SPL VS ANGLE AND SPL VS FREQ
Figure A.1 – SPL vs Angle
Figure A.2 – SPL vs Freq
(sound pressure levels at 1W/1m )
d
B
S
P
L
Curve
Freq
O
O
O
O
O
O
O
O
O
O
O
500 Hz
1 kHz
2 kHz
4 kHz
O
BW
(Dispersion
(-6dB))
117
81
37
47
Directivy
factor, Q
3,1
4,5
7,7
9,6
DI
4,9
6,5
8,8
9,8
0
30
60
90
120
150
-180
-150
-120
-90
-60
-30
115
110
105
100
95
90
85
80
75
70
65
60
60
65
70
75
80
85
90
95
100
105
110
115
55
Deg
115
110
105
100
95
90
85
80
75
70
65
60
d
B
S
P
L
20 Hz
50
100
200
500
1kHz
2kHz
5kHz
10kHz
20kHz
Содержание LS-25(T)
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