RCF DU100X Manuel De L'utilisateur page 20

INPUT VOLTAGE 25 V
INPUT VOLTAGE 70 V
INPUT VOLTAGE 100 V
4.
Connect the loudspeaker BLACK wire to the line negative wire (-) coming from
the the amplifier output marked -, 0 or COM.
5.
Connect the loudspeaker wire corresponding to the line voltage (e.g. 100 V) to the
line positive wire (+).
6.
Isolate the two unused wires carefully, in order to prevent any risk of electric shock
and accidental short circuit that could damage the loudspeaker and/ or the
amplifier.
7.
Remount the rear protective cover, leaving the two connected input wires coming
out from the loudspeaker (through the groove (F) on the cover) and the two
unused wires inside the loudspeaker.
NOTES (CONSTANT VOLTAGE SYSTEMS)
• The loudspeaker input voltage (Vd) must correspond to the amplifier output
voltage (Va).
• The sum of nominal power values (Pd x n) of all loudspeakers connected to
the line must not exceed the amplifier power (Pa).
• Make sure all loudspeakers are connected in phase to ensure a correct
audio 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 cables, microphone
cables or others, in order to avoid inductive phenomena may cause hum or
noises.
• Use cables with twisted wires to reduce hum caused by inductive effects
due to coupling with electromagnetic fields.
20
WIRE TO BE USED
BLACK (-) / BLUE (+)
BLACK (-) / BROWN (+)
BLACK (-) / RED (+)