7
The proper wire size is very important for an amplifier of this power level. Because the
Class "D" amplifier is capable of drawing in excess of 90 amperes,4 gauge wire is
recommended for lengths up to twenty feet. if a longer length is needed, a larger gauge
Amplifier power wire should be wired directly to the battery using the wire requirements
listed above. Start at the amplifier and run the power wire through the vehicle to the
battery. The use of grommets is recommended when passing the power wire through
any metal wall. Avoid sharp corners or sharp body parts that may easily cut through the
insulation on the wire. Avoid running the power wire over engine components and near
heater cores. Use an inline fuse to eliminate the risk of a fire caused by a short in your
power wire. Connect the fuse holder as close to the battery positive as possible. For
most applications, an 80 ampere Maxi fuse or comparable ANL wafer fuse can be used.
Now connect the wire to the battery, but remember to leave the fuse out until all other
POWER SUPPLY CONNECTIONS
RECOMMENDED POWERWIRE
POWER
The Class "D" amplifier is designed to work within 10 to 16 volts DC. Before any wires
are connected, the vehicle's electrical system should be checked for correct voltage
supply withthe helpof a voltmeter. First checkthe voltageat thebattery terminalswith
the ignition in the off position. The voltmeter should read no less than 12volts. Next,
check the battery with the engine running between 1500 and 2000 rpm.The voltmeter
should nowread between 13.5 and14.5 volts. If yourvehicle's electrical system Isnot
up tothese specifications,we recommendhaving itchecked byan automotivemechanic
before further installation.
wire maybe necessary.
wire connectionsare mode.
When grounding your amplifier, locate a metal area close to the amplifier that is a good
source of ground ( preferably the floor ).Once again, investigate the area you wish to use
for electrical wires, vacuum lines, and brake or fuel lines. Using either a wire brush or
sandpaper eliminate unwanted paint to supply a better contact for your ground. Use the
same gauge wire for ground as you did for the power. Terminate the ground wire using the
correct size ring terminal and attach it to the bare metal using a nut and bolt. It is important
for this connection to be solid. To complete the job, spread silicon over the screw and bare
GROUND
REMOTE TURN-ON
metal to preventrust and possiblewater leaks.
In between the power and ground is a remote turn-on terminal. This terminal must be
connected to a switched +12volt source. Typically, remote turn-on leads are provided
at the sourceunit that willturn on andoff theamplifier in correspondencewith the source.
If a radiodoes not havea remote turn-on,then a powerantenna wire maybe used. Yet,if
neither of these leads are available at the source, a switched +12 volt supply must be
supplied. Run aminimum of 18-gaugewire from theamplifier location tothe source ofthe
switched +12 voltlead. If possible,route this wireon the sameside of thevehicle as your
power wire. Connectthe source remoteoutput wire tothe REM terminalon the amplifier
using a 3mm screw key. Cut the remote wire to length. Strip approximately 1/2 inch of
insulation from theend of thewire and insertinto the terminal. Tighten thescrew securely.
