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This may result in the loss of setting information in the receiver, clock and other devices in your car. Be prepared to reset your car's equipment as if the battery were being replaced. Do this after the system is installed and double checked. Consult with manual or dealer for intructions. If you are inexperienced or uncertain about any of these procedures, obtain the services of a professional installer.
1)
Select a location for the amplifier that has good air circulation, such
as in the trunk,or under a seat.
Make
certain that the power antenna lead stays on while the receiver is on.
On some radios, power may be switched off from the lead when a CD or tape
is played, so the power antenna will come down. If this is the case with
your radio, it may have a separate lead coming out for the amp turn-on
function. Test the lead with a VOM, or test light. When the radio is on,
in any function, 12 volts should be present at the amp turn on lead until
the radio power is turned off.
5) Check the owner's manual for the recommended gauge (size) of the power and ground cables. 6) Connect the negative, or ground power cables before the RCA cables to prevent damage. If RCA cables are connected first, the amp may try to ground from these cables, possibly causing damage to other components in the system when it is activated. Use a fuse on the line at the battery and amplifier. Check your owner's manual for the proper rating for the fuse. Fuse your amplifier(s) as close to the battery as possible. Current ratings (in amperes) usually doubles with each amplifier added to a single wire distribution circuit. For example, if you have one amplifier, using a 35 amp fuse, with two similar amplifiers, use a 70 amp fuse.
Ensure
that
power cables
do not run next to
RCA
signal cables
. If the cables are too close, engine noise, which
may sound like a high-pitched whine, can get into the system. If whine
is unavoidable, you may wish to use a
Noise
Filter
. In addition to having your RCA cables mounted away from
power cables, make them as short as possible, as signal strength is lost
over distance, and higher frequencies are attenuated.
7) Use the same gauge cable for the amplifier ground (-) as you do for the amplifier battery (+). The ground cable should be kept as short as possible. Find a good ground. Clean the area of rust and paint you select for ground, and bolt the wire to that location. Many of today's cars have fiberglass bodies. Fiberglass does not make a good ground conductor. Ground your amp to a solid piece of metal in either the body or frame. If you have noise infiltration, see our section on Getting rid of Noise .
8)
Use 16-12 gauge speaker wire accoding to low or high power, and connect
the wire from the speakers to the amplifier. Make sure that the wire connected
to the positive terminal of the speaker is connected to the positive terminal
on the amplifier and the wire connected to the negative terminal of the
speaker is connected to the negative on the amplifier. If using multiple
speakers im a mono circuit, avoid overloading from improper impedance
matching. See our
Impedance Calculator
.
When making terminal connections, strip only as much insulation from the
wire as needed to make a good connection. Twist the wire to prevent any
single strand from escaping to touch another conductor.
For More Practical Tips Click Here
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ENCLOSURES:
Theile/Small AMPLIFIERS: About Installing Install Tips Power Ratings RECEIVERS: Installing NEON/LED: Installing TOOLS |
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