Proel HSPL40 - Manuale (Pagina 6)

Operating Instructions
1. In case more than one horn is used in the same place, take care of the
polarity in order to achieve an excellent sound pressure level. In case of
parallel connected horn speakers, the polarity must be the same for all
units. If the configuration is in series, care should be taken regarding
the polarity as with batteries connected in series.
2.
The unit is specially suitable for long distance cabling, thanks to its built-
in transformer (use of 100V lines).
Installation
1. Two holes 102 mm apart should be made in the place required for the
installation.
2. Firmly fix the mounting bracket.
3. Select the output voltage required by connecting the audio signal line to
the neutral (gray terminal cable) and the positive (coloured) terminal in
correspondence to the required power level:
Note:
The same colour/power correspondence is shown on the back of
the horn.