Bosch Security Systems B.V.
NOV-11_LS1-OC100E-1 | V1.1 | 2011.11
LS1-OC100E-1
ml 32
5
Listening area and related mounting height
How to define a listening area?
1 Define the height between the loudspeaker and the
floor.
2 What is the desired maximum SPL variation from
centre to the edge of the listening area?
3 Look, in the table below, in the column for the
specified height and in the row for the specified
maximum SPL variation.
4 At the intersection of the row and column the
diameter and the surface is given of the listening
area.
The color indicates the range of minimum dB SPL for
the listening area at maximum power:
fig. 5.1
Listening area
Height
1,5 m
Centre
Diameter
3 dB
6 dB
12 dB
9 dB
Maximum sound pressure variation from centre to the edge of the listening area
Height
[m]
Max SPL
centre
[dB SPL]
3dB
diameter
[m]
surface
[m
2
]
6dB
diameter
[m]
surface
[m
2
]
9dB
diameter
[m]
surface
[m
2
]
12dB
diameter
[m]
surface
[m
2
]
15dB
diameter
[m]
surface
[m
2
]
18dB
diameter
[m]
surface
[m
2
]
4,5
100,4
4,36
15
7,40
43
11,28
100
15,64
192
20,92
344
28,22
625
5,0
99,2
5,08
20
8,64
59
13,16
136
18,24
261
24,42
468
32,94
852
5,5
98,2
5,82
27
9,88
77
15,04
178
20,84
341
27,90
611
37,64
1113
6,0
97,3
6,54
34
11,12
97
16,92
225
23,44
432
31,38
773
42,34
1408
6,5
96,5
7,26
41
12,34
120
18,80
278
26,06
533
34,88
956
47,04
1738
7,0
95,7
8,00
50
13,58
145
20,68
336
28,66
645
38,36
1156
51,76
2104
7,5
95,0
8,72
60
14,82
172
21,64
368
31,26
767
41,84
1375
56,46
2504
8,0
94,4
9,44
70
16,06
203
23,46
432
33,86
900
45,34
1615
61,16
2938
8,5
93,8
10,18
81
17,28
235
25,26
501
36,48
1045
48,82
1872
65,86
3407
9,0
93,3
10,90
93
18,52
269
27,06
575
37,12
1082
52,32
2150
70,56
3910
9,5
92,8
11,62
106
19,76
307
28,86
654
39,60
1232
55,80
2445
75,28
4451
10,0
92,3
12,36
120
21,00
346
30,66
738
42,08
1391
55,60
2428
79,98
5024
10,5
91,9
13,08
134
22,22
388
32,48
829
44,56
1559
58,88
2723
84,68
5632
11,0
91,4
13,80
150
23,46
432
34,28
923
47,02
1736
62,14
3033
82,30
5320
11,5
91,0
14,54
166
23,84
446
36,08
1022
49,50
1924
65,42
3361
86,62
5893
12,0
90,6
15,26
183
25,02
492
37,88
1127
51,98
2122
68,68
3705
90,96
6498
13,0
89,9
16,72
220
27,42
591
41,50
1353
56,92
2545
75,22
4444
99,62
7794
14,0
89,2
17,50
241
29,80
697
45,10
1598
61,88
3007
81,78
5253
108,28
9208
90 dB SPL and higher
from 85 dB SPL up to 90 dB SPL
from 80 dB SPL up to 85 dB SPL
from 75 dB SPL up to 80 dB SPL
lower than 75 dB SPL
Содержание LS1-OC100E-1
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