a/d/s/ PQ40.2 - Manual (Page 4)

warnings and tips
Always disconnect the battery ground wire before doing any work on your vehicle. Reconnect the
cable only after the installation is complete and the wiring has been checked to make sure that there
are no problems. If your radio features a code type security system, be sure you know the code
before disconnecting the battery!
Your a/d/s/ PowerPlate
TM should be installed in 12V negative ground vehicles only. Connection to
other types of electrical systems may cause damage to the vehicle or the amplifier.
Wear Eye and Ear protection when using power tools.
Do not bypass or modify the fuses, or replace with one of a higher rating. The fuse should not fail
under normal operation. Repeated blowing indicates a problem with the amplifier or improper
installation.
An additional power supply line fuse (not supplied) must be installed on the 12V supply line and
located as close as possible to the battery in order to protect the wire in the event of a short circuit.
Make sure the system is turned off when making or breaking any connections.
Do not use your PowerPlate
TM with speakers which have either terminal connected to the speaker
frame or to the vehicle chassis.
Never operate the vehicle without the PowerPlate
TM firmly mounted. An unmounted amplifier can be
a dangerous missile in an accident or abrupt stop.
mounting locations
Due to its low profile, there are many possible choices of mounting locations. Always mount the
PowerPlate
TM in a place that protects it from the elements. In addition, mount the PowerPlate TM on a
stable, flat mounting surface. Whenever possible, pre-drill the mounting holes. Remember to check
behind the panel for hidden dangers in the form of hoses, fuel or brake lines or electrical wiring. Use
a marking pen or awl to mark the hole locations and pre-drill using a 1/8” bit.
Passenger compartment mounting: All PowerPlates TM have been designed with a low profile to make
under seat mounting possible. Regardless of where you choose to mount your PowerPlate TM be sure
to keep a minimum of 1” of clearance around the amplifier for adequate airflow to prevent
overheating.
Trunk compartment mounting: The most common mounting location is in the trunk or cargo
compartment. For optimum cooling, mount the PowerPlate
TM chassis vertically with the fins running
vertically, or mount the PowerPlate TM horizontally with the fins pointing upward. Avoid horizontal
mounting locations with the fins pointing downward.
Also, locate the PowerPlate
TM
where it, and connections to it, will not be damaged by cargo or tools
which may shift during vehicle operation.
Engine compartment mounting: Don’t even think about it! The PowerPlate TM was not designed to
endure the harsh chemical and heat environment of the engine compartment. Failure to obey this
warning will void your warranty.
symptom possible cause action to take
poor bass response Speakers wired with wrong check speaker polarity and
polarity causing cancellation repair as needed
at low frequencies
crossover set incorrectly reset crossovers referring to
the multi-cross
TM crossover
configuration section of this
manual for detailed
instructions
battery fuse blowing impedance load to amplifier check speaker impedance
too low load, if below 2 stereo or
4 mono rewire speakers
to achieve a higher
impedance
short in power wire check power and ground
or incorrect power connections and repair as
connections needed
fuse used is smaller than replace with proper fuse
recommended size
too much current being check speaker impedance
drawn load, if below 2 stereo or
4 mono rewire speakers
to achieve a higher
impedance
check power and ground
connections and repair as
needed
amplifier fuse blowing impedance load to amplifier check speaker impedance
too low or wired 2 stereo load, or 4 mono, rewire
or 4 mono speakers to achieve a
higher impedance
short in power wire or check power and ground
incorrect power connections
connections and repair as
needed
fuse used is smaller than replace with proper fuse
size recommended
too much current being check speaker impedance
drawn load, if below 2 stereo or
4 mono rewire speaker to
achieve a higher impedance
check power and ground
connections and repair as
needed
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