Is capacitor necessary?
 

I have 10W6 sub with JL 500/1 amp. Is capacitor necessary for this setup?

ask big audio

LOL thanks :icon18::tup:

No it is not needed nore do I recommend capacitors for any system. You see I use to have one in my system than I found out some stuff about them. They just help the problem of headlights dimming and all they never rely fix it. So rely it is putting more of a strain on your electrical system than helping it. You are not going to have any problems because your cars alt is pretty beefy and also your not running over 1000 watts rms all the time. If you do ever encounter the dimming problem because of more than one amp or much bigger amps, do the big 3, battery ground to chassis, ground wire from engine block to chassis, and alternator positive to battery positive. or get a second battery for in the trunk. But from the systems I have seen and for the wattage your going to be pulling there should be no problems.

big audio to the rescue! :tup:

It depends on what your alternator is producing, this is a function of your speed and could be as low as 35 amps, but let's just say you are averaging 70 amps during normal city driving. If your amp is drawing 90 amps at max output, you are already consuming more than is being produced, and that’s not counting what the car might need, i.e. headlights, HVAC etc. The effects of this will be determined by how you use the system and how fast you are driving. When will you crank the system? For how long? How often do you do this? Is the car running when you blast the system? It all boils down to how fast you are driving and how frequently you put your battery into a state of discharge. Anytime you are using more amperage than is being produced by the alternator, you are in a state of discharge. The more charge/discharge cycles you put your battery through, and the severity of the discharge (how far down the battery is drained) can significantly shorten its life span and the life of your alternator.

Either way a capacitor is not the way to go. The charge and discharge of the battery depending on how fast that gets depleted, depends on how much fo a load the alt will see. As I said before no he dose not need a cap nor would I recommend one.

:iagree:

http://www.life2point0.com/WindowsLi...let%5B3%5D.jpg

X2 as always big you hit it right on the money. You brake it all down that everyone can understand it as well as know what you are talking about and answer the questions. :tup:

Wrong………….ask any “ELECTRICAL ENGINEER” who graduated from an Accredited Engineering Program!

:wtf2: :eek:

Here are plenty of links to support what I was saying.

http://www.caraudio.com/forum/showth...ight=capacitor

Capacitor Noob Help - Car Audio Forum - CarAudio.com

Capacitor of spare Battery to save Alternator - Car Audio Forum - CarAudio.com

Capacitor - how many Farad to I need? - Car Audio Forum - CarAudio.com

Big 3 vs. Capacitor - Car Audio Forum - CarAudio.com

How to wire a capacitor with 2 amps? - Car Audio Forum - CarAudio.com

There are just a few threads on caps and how they are pointless if you want more from other websites, please just ask I can post over a 100 of them from many different sites including the12volt.com and others. Caps are useless.

Your ELD or electronic load detection system takes care of how many amps and volts are being created by your amp not your speed.

Maybe I should have made it easier for you to understand………I NEVER even suggested using a capacitor! I do not recommend using one. My point in my post was that the load from the amp could be overloading the alternator!
Please re-read my post and reply!
“It depends on what your alternator is producing, this is a function of your speed and could be as low as 35 amps, but let's just say you are averaging 70 amps during normal city driving. If your amp is drawing 90 amps at max output, you are already consuming more than is being produced, and that’s not counting what the car might need, i.e. headlights, HVAC etc. The effects of this will be determined by how you use the system and how fast you are driving. When will you crank the system? For how long? How often do you do this? Is the car running when you blast the system? It all boils down to how fast you are driving and how frequently you put your battery into a state of discharge. Anytime you are using more amperage than is being produced by the alternator, you are in a state of discharge. The more charge/discharge cycles you put your battery through, and the severity of the discharge (how far down the battery is drained) can significantly shorten its life span and the life of your alternator”.

It is not going to over load the alt because it is not drawling or hooked up directly to the alt it is hooked up to the battery. The system he has will not overload his electrical system. It will put a load on it yes but nothing that is going to harm it in any way. You keep talking like the car is 10 years old. Older cars did not have ELD new ones do. So speed has nothing to do with the power the alt are putting out.

the OP just asked if a capacitor was reccomended...

now given the equip used and the specs of the equip i agree with big audio in that a cap is not necessary...

Electrical Load Detector monitors the amount of current that’s being drained from the battery from devices such as headlights, HVAC, power amps etc.
Any high powered auto amp is going strain an under powered alternator.
A second battery is never a good idea as it's an added strain on the alternator to charge two batteries AND supply power for the car. The ONLY time a second battery is useful is if the audio system is to be used with the car off.

At idle, when the alternator is turning slowly, output is reduced and may not be able to keep up with the demands on the charging system. Consequently, the battery has to make up the difference. The reserve capacity of the battery is like a bank account. It stores amps so that the electrical system can withdraw amps when electrical loads exceed the charging system output. Cranking the engine pulls amps out of the battery. So do high electrical loads when the engine is idling. The amps are put back into the battery when the vehicle is driven and the charging system is able to generate more amps than what are needed to keep things running.

Indeed. An alternator that is rated at 80 amps most likely puts put about 2/3 of that at idle. Alot of people fail to realize the importance of an alternator in car audio applications, Constant strain is put on the alternator to replace the power drained from the battery.

^ But your ELD still comes into effect with that. It detects how many amps are being requested by your electrical system and controls your alt accordingly. Plus some stock batteries can be the weakest link in the system as they can not hold the power like some stronger batteries can. All and all he is not going to have to worry about doing any upgrades nor should most people that own a z. Unless your going to start with a 1000 watts amp and run that at full tilt "which should never be done" and have another amp as well.

Not trus the second battery takes the strain off the main battery and the main charging system. It allows the second battery to take care of the amp and the power it demands. Almost any of those links will recommend a second batter instead of a cap. And so would I.

As I stated earlier, you should consult with an electrical engineer. (I could help you)
You are giving false and silly information. I’ll repeat it again, “A second battery is never a good idea as it's an added strain on the alternator to charge two batteries AND supply power for the car. The ONLY time a second battery is useful is if the audio system is to be used with the car OFF.”
“Any high powered auto amp is going strain a Low Amp/Output Alternator.

What exactly is your background & education? Any College/University Engineering Degree? In what?

This is true.............

You should click on spell check………really! PM me, I’ll show you how!!

That was typed rely quickly; before class this morning.

You should click on spell check "again"………really! PM me, I’ll show you how!!

I have firefox I know how to use it.

It appears that it’s not working??

you're kind of a jerk huh? Big A's kinda given a lot of people sound advice and volunteered his time to answer myriad audio questions on this forum. I am of the opinion that if he believes something is so, based on his real world knowledge, you should state your objection and then leave it alone. Thus far you've questioned his education and more recently his intelligence. Leave it alone already!

When a non 370Z owner (Troll) posts a self profiteering response that is nonsense and total bull sh*t, someone should speak up…………..right??

what's ur problem??

get outta here if it bothers you so much :tiphat:

Hmm so the original question was do I need a cap. I say no and than you come in with a long thing about alt and amps. Sounds like your trolling.

It does not “bother me”! I’m only against bullsh*t and Trolls!!

You should be trolling on the Civic forum…………..

so u're against urself then ??

If advocating for the car in general, providing useful information, being thoughtful and a generally pleasant individual to interact with is trolling, then yes he's a troll and I wish more would visit this site. I'm not the site proprietor but from what I can tell, the site is for fans and owners alike. The fact that he is a frequent sharer of facts AND HIS OPINIONS without actually owning the vehicle doesn't diminish his value to the site. Additionally, the guy is a freegin premium member which means he donated money for the BENEFIT OF THE SITE, since, as you pointed out, he doesn't even own the car... yet. So if you are into name calling, I believe an apt name for you would be F.U.C.Kin Bully.

Please, if you do not know English…………….hit the spell-check key!!

T H A N K Y O U :tiphat::hello::tup:

you are an idiot, is that clear enough? take your rubbish else where

you may not need a spell check, but you need an attitude check :roflpuke2:

For a Small investment for entitlement to a premium membership does not give anyone the privilege to express total bullsh*t and to profit from this forum! This clown has been bashing Pioneer, which is a world class home, and auto stereo trendsetter, and giving false information about automobile electronics!

blah blah blah blah, lets not change the topic of the thread