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06701
5" CEILING LOUDSPEAKER
ACOUSTICAL MEASUREMENT ENVIRONMENT USED FOR THE SPECIFICATION
ACOUSTICAL MEASUREMENT ENVIRONMENT USED
FOR THE SPECIFICATION
The measurements have been made according to EN 54-24:2008 within an anechoic chamber with the condition of free
field in hemispheric space.
Reference axis: axis that is in the center of the surface of the grid and perpendicular to it.
Reference plane: plane that is on the surface of the grid and perpendicular to the axis of reference.
Horizontal plane: plane that contains the reference axis and is perpendicular to the plane of reference.
Reference axis, reference plane and horizontal plane.
1 Loudspeaker enclosure.
2 Reference axis.
3 Reference point.
4 Reference plane.
1
2
3
4
5 Horizontal plane.
6 Vertical plane.
H: ±30º; V: ±20º; Reference: 3 m.
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