RCF dm41, Инструкция по установке и эксплуатации

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ENGLISH
17
INPUT CABLES
For connecting the speaker use cables with an adequate cross-section. The
greater the distance between the amplifier and the speaker, the larger the
connection cable cross-section should be to limit the voltage loss along
the line.
To prevent inductive phenomena from giving rise to humming or
disturbance that jeopardize the effective operation of the audio system,
the speaker cables should not be run together with electrical energy
conductors, microphone cables, or low level audio lines (e.g. LINE level).
To facilitate the ‘’in phase’’ connection of the speaker, use bipolar cables
that have markings to
distinguish the polarity (e.g. insulation of different colours, conductors of
different colours, ect.).
To minimize the inductive effects (hum) due to coupling with surrounding
electrical fields, use cables with conductors braided together.
Pa = Amplifier power
Pd = Speaker power
n = Number of speakers
Vd = Speaker input voltage
Va
= Amplifier output voltage
Amplifier
Pa > Pd x n Va
Vd = Va
+
-
- + - +
Vd = Va
Fig. 3
- +
Vd = Va