Nilfisk-ALTO ADP152 Stereo Amplifier User Manual


 
Mounting the Unit
33
Power, Ground and Remote Switch-On Terminals
LTO
LTO
TM
Installation & Setup Instructions
4
Your ADP Series Power Amplifier has two fixing 'ears' at each side, allowing it to be firmly screwed to a suitable surface.
It may be mounted vertically or horizontally, but avoid mounting the unit upside down (suspended from a shelf, for example)
since this may affect efficient heat dissipation. Do not mount the unit under carpeting or within a small sealed enclosure,
as this will prevent proper ventilation. Take care not to mount the unit where it may become wet or subject to damage
from items placed in the trunk area.
11
Signal Inputs
The Left and Right Channel input terminals are standard unbalanced phono type sockets. Connect the low-level pre-
amplifier output cables from your car radio/cassette player, CD/receiver or other device (active crossover network or
ALTO Mobile digital processor, for example) to the Input terminals of your ADP amplifier.
22
Speaker Outputs
Connect suitable cables (not supplied) from the Output terminals of your ADP amplifier to your speaker inputs, taking
care to ensure correct + / - polarity. Use the correct size Allen Key to tighten the screws of the speaker terminals.
Caution: Before making any connections, you should disconnect power from the battery to avoid accidental short-circuits.
The conventional way is to disconnect the Negative terminal of the battery, but beware - this action will disconnect power
from all electrical items in the vehicle, including:
a. the cassette or CD player (which may require a code number to reactivate it. Do you know the code?)
b. the security system (which may trigger and sound an alarm from its back-up battery. Do you know how to override the
alarm system?)
c. Memory modules (which may suffer memory loss if disconnected for too long).
If you have any doubts, you should seek professional assistance.
IMPORTANTIMPORTANT
The amplifier must not be run with any of its output channels open (i.e. not connected to a speaker).
Running the amplifier in this way for even a short time can cause permanent damage.