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charging a capacitor

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=26826
Printed Date: May 17, 2025 at 7:50 AM


Topic: charging a capacitor

Posted By: 1st time pro
Subject: charging a capacitor
Date Posted: February 20, 2004 at 9:21 AM

I bought a Rockford sub and amp off a friend of mine and I'm trying to install it in a 99 Escort. This is my first install and I'm using the OEM radio with no RCA pre-outs, but the amp has line level inputs on it. I wanted to use the existing rear speaker wires rather than running new wires from the HU to the trunk. I can just pull em off the rear speakers and connect em to the amp, right?? That leaves me with 2 front speakers and a sub in the trunk. The OEM radio's fader can be used to adjust the sub level.

I also got a .5 farad capacitor from my buddy. Should this be hooked up in "parallel" with the amp? I saw this on Rockford's technical help site. I also read that I need to charge it before installing. Since I dont have the charging cap/card that usually comes with it, I was gonna use the resister method. They used a 50ohm 1W resister. Should this work for my setup?? I kinda scared of this capacitor!!

The 1st link is to the capacitor install page and the 2nd is about charging it...

https://www.rockfordfosgate.com/scripts/rightnow.cfg/php.exe/enduser/std_adp.php?p_sid=&p_lva=&p_faqid=50&p_created=952039877

https://www.rockfordfosgate.com/scripts/rightnow.cfg/php.exe/enduser/std_adp.php?p_sid=&p_lva=50&p_faqid=153&p_created=1049433410

Thanks for your help




Replies:

Posted By: 1st time pro
Date Posted: February 20, 2004 at 12:55 PM
Sorry for the post. I searched and found what I was looking for!!





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