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by Froggy on May 14th, 2008
Capacitor ? That would be relative to the ohms of the wiring going to the battery. If you got noise from the battery, then it is a poorly designed amplifier. You should not need to add any parts to a system if it's designed right and installed right. All grounds must converge.
by Godfrey1991 on November 13th, 2009
I Have a 1000watt infinity sub to put in my corsa but ... dunno wat size amp i need..... help me please
by car audio crazy on May 14th, 2008
Car Audio Capacitors
The demand on your car battery when you have installed a large sound system can be enormous. This is especially the case when the subwoofer is producing that familiar loud 'boom'. During this time the amplifier may not be able to draw enough power from the car battery to faithfully reproduce the bass as expected. This can result in a poor and distorted bass response. Obviously the wire that you choose to feed your car audio amplifiers is very important but may not be enough. To fix the problem a capacitor must be used.
A car audio capacitor is like a mini rechargeable battery located close to your amplifier. It is recharged when the amplifier activity reduces and delivers the necessary power when it is needed. A simple rule of thumb to picking the correct capacitor is that you will need approximately 0.5 Farads for every 500 Watts of amplification.
You must also be very careful when installing your capacitor not to short out the terminals are damage may occur.
by car audio crazy on May 14th, 2008
doesnt matter what the watt of your subs are. its the rms power of your amp. if your amp is a 2000 watt rms and you dont want your light to dim it would be a good idea to get a 2.5 farad capacitor or bigger.
rule of thumb for getting a capacitor is for every rms watt from an amp
(example) 500 watt rms get a .5 farad cap
1000 watt rms get a 1.0 farad cap
1500 watt rms get a 1.5 farad cap
and so on but if your drawling a lot of power is better to get the farad cap just a litte bit bigger so that it can store more power for when you really need it.
me i got a 250 watt rms amp with a 1.0 farad cap and i have no problem.
by redb_ball is away on May 13th, 2008
GO ON WITHOUT ME RUN, REACH, RUN, TAKE FOR THE HILLS- WE'RE ALL GOING TO DIE! TAKE YOUR CAR WITH YOU STOP TURN DOWN THE VOLUME
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Comments
a capacitor is to store power for when your amp really drawls alot from your charging system. they help your car. they have the power for your amp so your light dont dim at night.
by car audio crazy on May 14th, 2008
A car battery has the capability of putting out 166 amps at 12 volts which = 2000 Watts A capacitor that you're talking about cannot hold a charge for a fraction of a second. You need to get some electronics training, you are stupid !
by Froggy on May 14th, 2008
i am car audio crazy i know what i am talking about. you use an amp with that much power your light are going to dim and you are going to kill your altunator. it is best to have a capacitor if you are useing a amp that drawls alot of power from your charging system.
by car audio crazy on May 14th, 2008
look at the pics i just added to my answer. on the one with the back of the box with the nos bottle the silver thing in front of it is a capacitor to give my system the power it needs when it is drawling alot and it makes it easier on the charging system. now tell me i dont know what the fuck i am talkin about.
by car audio crazy on May 14th, 2008
If you run a high power amp through the dash wiring, the voltage reference for the alternator is sensed there, that can cause alternator failure. This site shows the guage wire required and must go to the battery http://www.crutchfieldadvisor.com/S-FtR1dTDXLEV/learningcenter/car/cable_gauge_chart.html As for the capacitor T=RxC T=time, C=2.5 Farads, R=12/166amps=.0722891, So the time that the capacitor can run the amp is 2.5x.0722891=.1807 seconds. That is less than one fifth of a second, it doesn't act like a battery, it is keeping noise out of alternator sense line in the dash. That is why you see the lights dimming, this wouldn't happen if the wires were heavy and went straight to the battery.
by Froggy on May 14th, 2008
no matter what size wire you got if you dont use a capacitor with a massive amp your going to get dim lights. i have seen systems that have 5+ amps and 2 alternators with 4 extra batteries with 0/1 gage wire the biggest you can get and still need to use capacitors because of all of the power that the amps are drawling.
by car audio crazy on May 15th, 2008
as for the stuff that you wrote on my pics that is the internal parts of the amp that put out the power. on the pic with the back of the box with the nos tank the silver thing in front of the nos tank is my capacitor.
by car audio crazy on May 15th, 2008