OUTDOOR INSTALLATION DESCRIPTION:
NPJ series speakers are designed specially for fixing and using in different circumstances. The property of
speakers may be different due to different circumstances. There is an acoustic surface wall in a closed room, so
the acoustic indoor will turn complex. When acoustic wave hits the surface, a part of acoustic energy is reflected,
and others are absorbed. Reflection and absorption are depending on the frequencies of acoustic wave and angle
of hitting surface. When operate the cabinet, both man and furniture can absorb the acoustic energy. Please note
the position of man and furniture when installing. Reverberation is the results of the reflected acoustic wave
continue bouncing between the surfaces. Every reflection will loss the energy. When the acoustic hit the reflection
surface, the room will be filled with random reflected acoustic wave. The music and address will be complex. It is
recommended that install more speakers and make the volume of speakers lower to reduce the reverberation in
high reverberating room. (Please see figure 5B)
Speaker coverage range - Direct the center axile of the speaker to the flat surface of receiving area.
The speakers of 90
˚x
90 series can spread the speaker tone to all the directions at the axile of 45 .
If you use the speakers in large room, you can divide the room to some zones. Then decide the installing location
of the speakers . (Please see figure 6)
ONE LOUD SPEAKER
(figure5A)
MULTIPLE QUIET SPEAKERS
(figure5B)
45
｢X
45
｢X
45
｢X
45
｢X
45
｢X
45
｢X
45
｢X
45
｢X
VERTICAL
HORIZONTAL
(figure6)
4
Содержание NPJ-5
Страница 2: ...1...
Страница 7: ...7 DIMENSIONAL DIAGRAM NPJ 5 Unit mm Unit mm NPJ 5D 6...