Ive been lurking on this site for months, and I went from vaguely knowing about car audio, to knowing ALOT, specifically regarding installation.

My question: Since its the alternator that powers the system when the car is running, can I run a fused power wire from my alternator to my fuse block, in addition to the fused wire from the battery to the fuse block.

Basically having two power wires running from the front, to the fuse block in the back. One from the battery and one from the alternator.

 

google " the big 3 "

 

When I ran a multi batt setup, I had one run from the alt and one run from the front batt to the rear battery bank.

i dont use fuses either

 

You can, but other than being a convenient place to attach a second cable there is no benefit.

 

Also you may notice ripples of current off the alt, that the battery will filter.

 

o alright then, well my logic was, keep in mind im no expert, but instead of having power going to a load(battery or capacitor) then to your distribution block. Why not just run power directly from the power source, which may intern keep your voltage up since it doesn't have to go to point A before it goes to the fuse block.

Lets say i NEVER played my music with the car off, would I thoretically HAVE to run my power from the battery?

 

It makes no difference, they are electrically the same point. Even the manufacturer's alternator wire is more than heavy enough to accomplish this. Furthermore batteries and capacitors are not loads. They are energy storage devices and do not consume power. They simply store it until it's needed. Even if you did somehow bypass your battery it would do more harm than good.

 

thanks fellas

 

u dont really need a battery either, just straight from alt into the amp lol

 

I would not do that. I suspect that the voltage regulator in the alternator needs to have some sort of minimum load to function properly. Plus its transient response may not be as fast as you need it (how quickly can the regulator boost voltage back up to 13.8v after a sudden load). Thus the battery should be left in.