BST WMS3A Manuel D'utilisation page 4

Step 1: Fasten the bracket (1) on the wall with screws. The wall
material must support the weight of the cabinet.
Step 2: Screw the bracket (2) on the rear panel of the speaker.
Step 3: Use screw (3) to connect bracket (1) with bracket (2) and
secure the assembly via a safety steel rope (4).
RECOMMENDATIONS FOR INDOOR INSTALLATION
WMS series speakers are specially designed for installation and use
in different environments. The properties of the speakers might
change according to the environmental conditions. In a closed
room, the acoustic surfaces (walls, floor, ceiling) make indoor
acoustics complex. When an acoustic wave hits the surface, a part
of the acoustic energy is reflected, and a part is absorbed.
Reflection and absorption depend on the frequencies of the
acoustic waves and the angle under which they hit the surfaces.
People and furniture also absorb acoustic energy, so please
consider also the position of people and furniture when you make
the installation. Reverberation is the result of the reflected acoustic waves when they bounce
between the surfaces. Every reflection reduces energy. When the acoustic waves hit the reflection
surfaces, the room will be filled with random reflected acoustic waves. Therefore, in order to reduce
reverberation in complex rooms, it is recommended to install more speakers and reduce their
individual volumes rather than installing less speakers with higher volumes (see figures below).
One speaker with high volume Multiple speakers with low volume
Speaker Coverage Range
Direct the centre axle of the speaker towards the flat surface of the receiving area. The speaker with
a dispersion angle of 90° x 90° can spread the sound into all directions at an axle of 45°. If you use the
speakers in large rooms, you can divide the room into several zones and then decide of the location
of the speakers.