AVSL Sound & Light Product Guide 2024 - Catalog - Page 165
TECHNICAL DATA | TYPES OF SYSTEM | ACTIVE SPEAKERS
165
Active Speakers
Active speakers contain their own ampli昀椀er to drive the speaker,
which will be matched by impedance and power handling.
adding more active speakers and cascading the signal from
one to the next.
Some active models contain an ampli昀椀er that can also drive
another passive speaker (satellite). The main advantage of this
type of system is that there is no need for separate ampli昀椀ers,
which also means that the system can be expanded by simply
However, each speaker also requires power from the mains,
so this should be considered when planning an active speaker
installation.
Individual active speakers
SIGNAL
AMP
AMP
AMP
AMP
AMP
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
Active speakers with satellites
SIGNAL
AMP
POWER SUPPLY
POWER SUPPLY
AMP
POWER SUPPLY
AMP
Dispersion Angles
Calculating the spacing required in-between speakers using the dispersion angle
The spacing between speakers should be the distance
between the dispersion overlap at the listener’s height.
Calculating the spacing requires trigonometry
(using Tangent) in the following equation.
(Speaker height – Listener height) x TAN (dispersion angle / 2) x 2
Example: (2.8 – 1.5) x TAN (45º) x 2
1.3 x 1 x 2 = 2.6m apart (speaker spacing)
Room Height
2.8m
Speaker spacing
Listener Height
1.5m
Dispersion
90º
