[D.Kreft]

On Feb 24, 8:47 pm, "Mariachi" wrote:

Does anybody think that a 16 gauge power wire is sufficient enough to
deliver 100 Watts (25 watts per speaker)?

You'd be pretty lucky to get 25 Watts...like "superconductor" lucky--
you're likely getting closer to about eighteen or so.

At any rate, you'd have to know the length of the wire--there's
nothing magical about the gauge of the wire, it's all a matter of the
total resistance that wire has. So, would be fine with 1" of 18 AWG on
a 750 Watt amplifier, but you'd be in really bad shape if you had to
go 15 feet with the same wire on that same amp. :-)

I was thinking of replacing
the factory 16 gauge power wire with a 14 gauge power wire. The only
problem is, I don't know my cars electrical system well enough in
order to run the 14 gauge where I'm supposed to. Some people say
there is a resistor between the head unit and the positive terminal of
the battery in order to limit the current... but isn't the head unit
supposed to do that by itself?

Sounds like "ignernt" folk to me. The HU, like *any* other electrical
device, will only draw as much current as it needs.

I'm sure the head unit has it's own
switch to limit the current that is going into the HU.

Yeah, it's called a "fuse." :-)

And remember...current doesn't "go into" an electrical device--it is
*drawn* by the device. It's not like you can *force* current to go
through something (at least not without jackiung up the input
voltage :-).

I don't want
to run a wire straight to the positive terminal of the battery because
I might ruin something that might be originally in parallel with the
head unit power wire.

This doesn't really make sense.

Right now, I'm trying to locate the 10 or 20 A
fuse that the power wire is connected up to. Any suggestions?

The first question you need to ask yourself is "Why do I want to do
this?" Do you have an actual problem that you're trying to solve, or
are you creating problems for yourself to solve because you're bored?
It may sound like a wise-guy question, but it *is* what you need to be
asking yourself.

-dan