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two 3 farad caps

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=94197
Printed Date: May 11, 2024 at 9:27 PM


Topic: two 3 farad caps

Posted By: still_walkin
Subject: two 3 farad caps
Date Posted: May 23, 2007 at 9:09 PM

I have two 3 farad legacy caps and I want to know if there is a way to connect them safely not using buss bars. Could I use a distrubtion block for the power/ground . Any help will work thanks

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1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"



Replies:

Posted By: stevdart
Date Posted: May 23, 2007 at 9:43 PM

Put the caps anywhere you want to in the circuit.  The safety factor comes into play when you are charging them with a slow trickle charge per directions.  If they are to perform at their best potential, they will be placed directly before the subwoofer amps.  The main power wire feeds positive and they may be grounded to chassis separately.  Distro blocks tame the install...they make things neater and more organized in appearance.  There is no additional safety factor when using those.

Without using a distro block, you can just as well solder wires together:

posted_image

If there is only one sub amplifier, place the two caps in parallel before the amp.



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: still_walkin
Date Posted: May 23, 2007 at 10:30 PM
So as long as there wired before the amp that goes to my subs I can wire them into the block . So they don't need to be wired in a series or a parrell wiring.

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1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"




Posted By: stevdart
Date Posted: May 23, 2007 at 10:50 PM

Yes, they need to be wired parallel.  Parallel is simply wiring same polarity to same polarity.  Positive to positive, ground to ground (or chassis, which is common ground).  A cap can go before or after the distro block, it doesn't matter.  It all depends on what is involved in your setup and how everything fits in the car.  If I had one distro, two caps and two sub amplifiers, I would put the distro first...then wire from the distro out to each amp.  Just before each amp I would put a capacitor.

But if I had one cap, one distro and two sub amps, I would first put the cap, then the distro, then wire out to each amp.  I would also keep them all close together as possible.



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: still_walkin
Date Posted: May 23, 2007 at 11:39 PM
Well my setup for the bass two 3 farad caps, 4 12" audiobahn aw1251se subs, and 1 audiobahn a2200hct. the wiring setup I have setup so far is the main power wire goes to a block two 0 guage input/ four 4 guage out. I have 3 of the 4 guage going to 3 amps included in the a2200hct. I also have the same setup for the ground the same block. So do I need a bigger block to have these caps togeter or just get a extra block on power/ground or just wire them in a parrall power 2 power and ground 2 ground . Thanks

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1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"




Posted By: stevdart
Date Posted: May 24, 2007 at 7:03 AM

Like I said, you can place the caps anywhere you want to in the circuit.  All pos to pos connections are parallel and thus instantly connected, whether through a distro block or not.  In your case, with one sub amp and two inputs into the distro...you are using only one input for the main power wire.  You can use the second input to connect one (or both) of the caps just to use all the connectors. 

Here is a way, putting one cap in parallel on the main power wire, the second cap uses the second input connector.  All ground wires go to chassis, or they can be collected together at a distro point and then to ground.  Grounding is largely experimental.

posted_image

It doesn't matter where the caps are located.  The amp that wants to pull from them will do so, even if the caps are on an (distro's) output wire in front of one of the smaller stereo amps.   Arrange your installation however it fits best and looks the neatest, keeping wires short as possible.



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: DYohn
Date Posted: May 24, 2007 at 10:06 AM
And, may I add, make sure ALL wiring used is capable of handling the the max current required by your system.

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