9
ENGLISH
NOTES ABOuT CONSTANT VOLTAGE SySTEMS
-
the loudspeaker input voltage (vd) shall correspond to the amplifier output
voltage (va).
-
the sum of nominal power values (pd x n) of all loudspeakers connected to
the line shall not exceed the amplifier power (pa).
-
make sure all loudspeakers are connected in phase to ensure a correct
sound reproduction.
-
always use cables having wires with an adequate cross-section, considering
the cable length and the total loudspeaker power.
-
loudspeaker lines must be kept separated from mains cable, microphone
cables or others, in order to avoid inductive phenomena may cause hum
or noises.
-
use loudspeaker cables having twisted wires to reduce hum caused by
inductive effects due to coupling with electromagnetic fields.
amplifier
pa = amplifier power
pd = speaker power
n = number of speakers
vd = speaker input voltage
va = amplifier output voltage
pa > pd x n
va
vd = va
vd = va
vd = va
