using a capcitor does help..........

[pawn man 10+ year member]

you have a degree in electronice & you use 8 ga wire on 1200 watt amp! mmmm

 

[DejaWiz 5,000+ posts]

A capacitor places more of a strain on a system than anything else. When it's charging, it's a load. Add in an amplifier, and now you have multiple loads.

After 1 time constant of charging, the capacitor is at approx 63% voltage. In a 13.8V system, this is 8.7V.

After 1 time constant of discharging, the capacitor is at approx 37% voltage. In the same 13.8V system, that is a mere 5.1V.

While the amplifier is trying to do it's job, thus drawing current, so is the capacitor when trying to constantly charge while constantly being discharged. Voltage to the amplifier is diminished because of this. The circuit must equalize based on a constant power source and the number of loads present and the individual demands of each of those loads.

Think of it in terms of static electricity....

When you walk across a carpet in socks in the right atmospheric conditions, you are building a charge. Touch a door handle and this charge suddenly goes away. You and the door handle are loads on the power source. After 1 Time Constant (walking the distance of 1 foot in second, for this example), you have built a bit of a charge. When you touch a door handle, you might not feel or see the spark, but this doesn't mean you're not discharged... you are!

After 5 time constants (walking 5 feet in 5 seconds), you have built up a much larger charge. Touch the door handle and you can now feel (and likely see) the resulting spark from the near-instantaneous discharge.

Now, tie a wire around the door handle and hold on to it. Walk the same 5 feet in 5 seconds across the carpet (power source). Your body doesn't build the same charge because the wire is constantly discharging you to the door handle. Your body is TRYING to build the charge, but, this will never happen since the constant load of the door handle (amplifier load) is present in addition to the constant load of your body (capacitance charge) to the constant power source (the carpet while you are walking across it). Because of this, the voltage is much lower when measured at the door handle and the body since you are acting as an additional load when charging, pulling voltage away from door handle as the door handle is pulling voltage away from you. The only thing that stays constant is the power generated from the carpet... and that now has to be equalized between both loads.

I know this likely isn't the best example stated in the best words, but I just wanted to try and explain it in terms that 999,999 out of 1,000,000 people have experienced for themselves as best I could in a relatively short amount of time.

 

[na_rsx 10+ year member]

dumb retarded people like this is the only reason that keeps me voting against abortion

 

[n2audio 5,000+ posts]

A capacitor places more of a strain on a system than anything else. When it's charging, it's a load. Add in an amplifier, and now you have multiple loads.
After 1 time constant of charging, the capacitor is at approx 63% voltage. In a 13.8V system, this is 8.7V.

After 1 time constant of discharging, the capacitor is at approx 37% voltage. In the same 13.8V system, that is a mere 5.1V.

I stopped here because this can't possibly apply to a car's charging system.

The cap won't even finish one discharge cycle because you have a battery sitting there with (relatively) infinite current at 12.5v. The cap will never have voltage lower than the battery.

That is one of the big problems with the application of stiffening caps in a 14v charging system. About 3/4 of the energy stored is below the lowest voltage of the system.

 

[audioholic 5,000+ posts]

I didn't have to. All of the big three are last resorts...

I stopped reading at this point. Why would anyone take advice from this guy seriously?
Just another guy that thinks he knows what he is talking about, when clearly he does not. The interweb is full of these people, get use to them.

 

[TurdFergueson2 5,000+ posts]

I didn't have to. All of the big three are last resorts, besides I just told you installing a cap took care of the problem I was trying to solve.
Calm down with the SHUT THE F UP NONSENSE I am just going to ignore you any way.

You are full of Fail.

 

[hrtbrk1 5,000+ posts]

Ive used a cap on a

 

[hrtbrk1 5,000+ posts]

give dak his amp...i think u lost

 

[na_rsx 10+ year member]

btw you should tell your mom to get her tubes tied

 

[Orion Man 10+ year member]

F'n noobs. How many times do we have to go over the same stuff? Good hell.

 

[donpisto 5,000+ posts]

I stopped reading at this point. Why would anyone take advice from this guy seriously?
Just another guy that thinks he knows what he is talking about, when clearly he does not. The interweb is full of these people, get use to them.

It's because he has a degree in Electrical Engineering that we are supposed to take his word.

I know several people that have a Bachelor's, however, these people are still complete idiots. A degree doesn't mean you're smart, it just means you paid a bunch of money on a piece of paper. What makes a person smart is their actual knowledge and common sense.

This is a prime example of taking what someone with a degree says with a grain of salt....in this case, I think a grain is a wee bit little.

 

[Pioneer~Saturn 5,000+ posts]

The fail is strong with this one...

 

[audioholic 5,000+ posts]

It's because he has a degree in Electrical Engineering that we are supposed to take his word.
I know several people that have a Bachelor's, however, these people are still complete idiots. A degree doesn't mean you're smart, it just means you paid a bunch of money on a piece of paper. What makes a person smart is their actual knowledge and common sense.

This is a prime example of taking what someone with a degree says with a grain of salt....in this case, I think a grain is a wee bit little.

Wait, I didnt read the whole thread. The guy that says upgrading wiring to accommodate the increased current flow from the after market stereo is not necessary/a last step... has a degree in electrical engineering?
The guy that just over simplified the entire capacitor argument down to 'it worked in my minivan therefore its a miracle cure for lack of alt/wiring for everyone' has a degree in electrical engineering?

//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[bunkerking09 10+ year member]

I love this place //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[lilmaniac2 5,000+ posts]

WRONG ! a capacitor can deliver amps more quickly than a Battery. Why ? because a battery is depending on the alternator to to deliver the current first. Where as a cap has this ready and available once charged.

Have any proof? Because I have numerous test results that prove you wrong.

besides your Devry degree?