Bose EdgeMax EM90 Manuale di progettazione - Pagina 6
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EdgeMax Design Considerations
EdgeMax Design Considerations
Standard and Premium Coverage
The EdgeMax design guidelines offer two options for quality of coverage: Standard and
Premium When creating a design with Standard coverage, which should be suitable for most
applications, EdgeMax loudspeakers are spaced such that the overlap between adjacent
loudspeakers occurs at the -10 dB point A design created with Premium coverage places the
loudspeakers such that they overlap at the -6 dB point
Premium Coverage
Figure 6. Standard and Premium coverage comparison for EdgeMax loudspeakers.
The quality of coverage for EdgeMax loudspeakers was derived using the vertical coverage
angle, and confirmed using the Bose® Modeler® software
Maximum Room Dimension
Like a surface-mounted loudspeaker, the mounting height of an EdgeMax loudspeaker will
determine its usable throw distance The usable throw distance is the distance from the
loudspeaker that we can expect to receive balanced frequency response and adequate
loudness for a given application
Mounting Height
Coverage
Quality
Figure 7. Usable Throw Distance based on coverage quality for various ceiling heights.
Assumes 1.5 m (5') ear height.
Design Guide - 6
62 °
75 °
(nominal -6 dB)
Standard Coverage
(nominal -10 dB)
Usable Throw Distance, EdgeMax EM90 and EM180
Premium
Standard
m
2 7
3 0
3 7
ft
9
10
12
m
2
2
3
ft
7
8
11
m
3
4
6
ft
11
14
19
4.2 m | 14 ft ceiling
E ective
Loudspeaker
Height
1.5 m | 5 ft ear height
4 3
4 9
5 5
14
16
18
4
5
6
15
18
21
8
9
11
25
30
35
6 1
20
7
24
13
40