Audiophony PA AMP 150.1H Guide De L'utilisateur page 9

AMP150-1H/AMP300-1H/AMP500-1H - Public Address 1 channel 100 V amplifiers
4 - Application
Use high-quality cables to connect your speakers.
To avoid short-circuits, check that the cable strands are correctly twisted before connecting them to the output
terminals.
When connecting your loudspeakers to the amplifier, be sure to observe the correct polarity.
Connect transformer-equipped speakers to the + and - output terminals.
The two outputs are wired in parallel. Take care to distribute the connected loudspeakers so that the sum of the
powers of all the loudspeakers does not exceed the maximum power of the amplifier.
Audio source
To another amplifier
Dangerous voltage
Loudspeaker lines should be connected to the amplifier last.
Switch on the amplifier once the installation has been completed and checked.
Below is a table showing the correspondence between amplifier/loudspeaker distance and cable cross-section,
to avoid any deterioration in signal quality.
Power
150 W
300 W
500 W
Note: never use shielded cable to carry the power signal.
Maximum 100 V line length
Minimum impedance
67 Ω
33.5 Ω
20 Ω
Caution: The sum of the power ratings of all
connected loudspeakers must not exceed the
maximum power rating of the amplifier.
Installed cable cross-section
1,5 mm²
800 m
400 m
180 m
English
100 V speakers
100 V speakers
2,5 mm²
1300 m
700 m
350 m
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