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How-to-guides for wiring car stereo
amplifier power distribution
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Installation help for
installing power to car stereo amplifiers |
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Wiring your stereo amplifier
Wiring your amplifier is not that difficult, however the way you
wire your amp, will determine your sound quality and
amplifier life span!
Car stereo amplifiers basically have three segments of wiring
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Power
distribution
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Audio
signal in (from radio output)
-
Audio
signal out (to speakers)
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Amplifier
Index
Introduction
Installation
Power
distribution
Audio
input
Audio out
Amplifier power distribution diagrams
Amplifier audio input diagrams
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Power distribution.
Most amplifiers will have three connections for power:
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( +) 12 volts battery
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( - ) or ground
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Remote "turn on"
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+ Positive battery
Many audio amplifiers will draw a large amount of current during
high volume.
So, it is very important that it have a good supply of power.
You should use a heavy gage wire, routed to the vehicles + positive
battery post. It should run directly to amplifier for proper power
distribution and maximum current draw if required.
Caution!
The positive power wire should have two fuses for protection:
The positive power wire should have two fuses for protection:
The positive power wire should have two fuses for protection:
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Battery fuse
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Amplifier fuse
Battery fuse:
This fuse is to protect the vehicle from any short circuit that
may occur on this wire.
If this wire is not fused, and is shorted to ground, it could generate enough heat to
ignite the vehicle and literally burn it to the ground!
Caution!
You must add an inline fuse no more that 6 to 12 inches from the
battery post!
The current rating on the fuse will be determined by the
amplifier fuse, located on amplifier (unless stated
otherwise by manufacture).
Example
Most amplifiers will have a fuse built into the side of the
amplifier for protection of the amp itself.
So, if the amplifier fuse is rated at 20 amps, you should
place at least a 20 amp fuse at the battery.
Amplifier fuse:
As mentioned above, most amplifiers will have a fuse built into
the side of the amplifier for protection of the amp itself.
This fuse is only for protection of the amplifier and its current
rating should never be modified.
Placing a higher current rated fuse larger than intended for
amplifier, may cause damage or fire!
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(-) or Ground
This wire should be the same gauge wire as the +12 wire.
You should connect this terminal so that is fastened to a
“clean” part of vehicles chassis. You should have this connection as close
to amplifier as possible.
This can usually be found under vehicle carpet or any metal of
chassis.
Avoid attaching the ground terminal to the dash, or anything that is
not directly part of the chassis, as other devices that are
bolted or attached, may appear to be ground, but will have
resistance between those points.
This will cause motor noise and even degrade sound quality!
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Remote turn on
This is the wire that will “tell” the amplifier to turn on, when
you turn on your radio.
Most radios will have a wire for this purpose.
It is simply a wire that sends +12 volts to the remote
turn on connection, on the amplifier.
If your radio does not have a remote turn on wire, you can use
the accessory wire located on radio harness to activate
amplifier.
This means that each time you turn the vehicles key to the
accessory or run position, the amplifier will turn on.
This will not hurt the amplifier in any way.
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Amplifier wiring continued
Click on the link below to continue.
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Related sites |
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