5
4. CONNECTIONS
The AUDEO108 allows for operation at high or low
impedance. For this purpose, there is a five-position switch on
the rear panel that allows you to select the operating mode. The
first four switch positions allow the system to operate in high-
impedance mode and the fifth, in low-impedance mode. (*)
The four 100 V power line switch positions allow you to
set the maximum power that will be used by each unit. Thus, in areas where a low sound level is
required, the lower positions are used (7.5 or 15 W, while in areas in which a higher level is required,
the higher positions are used (30 or 60 W.
Note: If you use the speaker in 70V installations, the power for the 100V position will be
half the amount shown on the switch. When used in 50V installations, it will be a fourth of the
amount.
The fifth position corresponds to operation in low impedance (8
:
) and a maximum power
of 100 W. In the case of adopting this configuration, the amplifier limits must be considered when
connecting several speakers to its output, especially if the impedance of the system falls below 4
:
.
In addition, it is important for the cable connecting the amplifier and speaker outputs to be of good
quality and as short as possible; this is particularly important if large distances are to be covered and
the impedance of the speakers is low.
(*) N.B.: The system of distributing the speakers on a 100V/70V line has historical origins in the need to
mix speakers with different impedances and/or power capacities on the same line or amplification
channel without having to worry about the total impedance of the resulting system. Also, this solution
allows you to use longer lengths of cable with a considerably lower section than is normally used in low-
impedance installations with minimum power loss.
CAUTION:
The AUDEO108 is delivered with the switch in the 100 V/60 W position. If you accidentally hook
the system up to a low-impedance amplifier, no damage will be done to the speaker, but it will
perform far below its real capabilities. If you accidentally connect the speaker to a 100 V
network in the 8
:
position, this will cause serious damage to the speaker.
