UPTURNED T
series
SOUND REINFORCEMENT
ACOUSTIC RESEARCH
CONTROLLED RADIATION
User’s Manual
UPTURNED T
series
SOUND REINFORCEMENT
ACOUSTIC RESEARCH
CONTROLLED RADIATION
16
5.8 Power cables - section/length table
It is very important to use power cables of appropriate section. The length of
the cable causes a significant impedance that can deplete the audio signal
and change the
dumping factor
of the amplifier-speaker couple.
The following table shows the recommended section based on power cable
lengths for different transducer impedances.
Maximum Length
CSA section
4 Ohm
8 Ohm
1.0 mm
2
11 m
22 m
1.5 mm
2
17 m
34 m
2.0 mm
2
22 m
44 m
2.5 mm
2
29 m
58 m
4.0 mm
2
44 m
88 m
6.0 mm
2
66 m
132 m
5.9 High-volt lines (100 Volt)
The definition of
high-volt line
stands for conductors in which the audio power
signal is transported at high volt and low current ratings (obtained through
the high impedance of the transformers available in each loudspeaker), in
order to limit power dissipation down the line when small section cables can
be used (1.5 - 2.5 mm).
The value of
100 V
is referred to RMS voltage of the audio power signal that is
delivered by the amplifier. This high voltage signal is then processed by each
speaker and translated into its suitable voltage.
PSUT1 and PSUTS speakers can be installed on 100 Volt network lines (with
100-Volt amplifiers) if equipped with the optional TRA-PSUT1 and TRA-PSUTS
transformers. On request, these transformers are installed inside each speaker
by the factory, during production process. Alternatively they can be fitted by
the installer by carefully removing the transducer as instructed in the user’s
manual of the manufacturer.
Several speakers can be connected to the same line up to reaching the
electric power supplied by the amplifier, without affecting the maximum
power delivered by the amplifier or jeopardizing its performance.
6. SYSTEM CONFIGURATIONS
6.1 UT Active Stack configurations
Figure 21. UT Active Stack 1_1_mono system configuration (left),
UT Active Stack 2_1_mono system configuration (right)
6.2 UT Passive configuration
Figure 22. System configuration 2_0_stereo (with PSDSP2600)
