Refer to my other post for application - But I am curious... how do you know which "farad" capacitor is needed for your sub and amp setup??
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03-04-2010
Refer to my other post for application - But I am curious... how do you know which "farad" capacitor is needed for your sub and amp setup??
03-04-2010
usually one farad for every 500 watts RMS of power...
03-11-2010
this is a good rule of thumb. especially for our cars which have fairly decent alternators. do the voltage upgrade too. and the big 3. and you'll be set!Originally Posted by CTKGP09
03-04-2010
you can never really go wrong with oversizing on caps though... just don't go buying a 10 hybrid cap for something like 2,000 watts or less... your just crazy then... even though they do look good!
03-05-2010
True.. which amps would you suggest in that case matt?
03-05-2010
caps won't help if you are getting dimming you need a HO alt
03-05-2010
wouldn't doing the big 3 help with light dimming ?
03-05-2010
not without a HO alt
03-05-2010
Depends on how many amps you are pulling.
03-05-2010
Big 3 is trendy. It really doesn't help anything except maybe V droop unless you have higher output alts (as stated above) AND HARDWARE THAT UTILIZES SAID H.O. ALTS!
Again, most people utilize about 15-20 watts per speaker on average when they crank. Get some equipment and do actual readings if you want proof.
03-05-2010
not to jack but the lowest i got yesterday was a 10.9V
03-05-2010
That could also be due poor connections or small guaged wire or LENGTH of said wire. Refer to the12volt.com to help with wire runs and determining power requirements.
I have a 4awg run in an 04 GP with ~1800(a/b power supply) watts on tap. In cold weather(30 or below no humidity) I go down the highway with 14.9 on the DIC and ~14.5 measured in the trunk.
Again, there's no way in hell I use that many watts. But if I run my subs incorrectly I can definitely strain the alt with dimmed lights. However, my voltage is still fine.
03-05-2010
How is your deck and amp still running?? How is your alternator not dead yet????
03-24-2010
How are you dropping down to 10.9 may I ask? You must have some serious malfunctions with your electrical? Last weekend I had 6K rms wired up in my car, and I didn't dip below 11.X... Fluke tested at front battery..
03-05-2010
i do have 1 reported case of a cap helping. one of my TEACHERS kept screwing up his alternator with subs, then put in a cap and it quit breaking. I don't think it's a good way. Just buy yourself a good name-brand amp.
03-05-2010
Read this!! If you have a good quality amp then the caps are already built into the power supply
Search is your friend!!!!
http://www.grandprixforums.net/f41/u...r-24989-2.html
http://www.grandprixforums.net/f41/o...ion-26663.html
http://www.grandprixforums.net/searc...earchid=450710
03-10-2010
caps are junk get a deep cycle battery in your trunk next to your amp..way better
03-11-2010
That makes no sense. If you are drawing more power than the alternator creates...adding another load doesn't help that. You'd end up having to recharge that batt every so often if your power use really did dictate its use.
03-21-2010
caps are a WASTE of $$$!!! if your system is big enough(draws more then 100amps of current) a xtra bat will help but put strain on your alt. iv had an xtra red top(in trunk) on my factory alt for 5+ years with no light dimming when its cranked up, amp(s) are mmats dhcx2200.1's.. few years ago ive only been using 1 amp.. just this past summer my alt started goin out as my head lights and dome lights were startn to dim with the bass so i put an HO alt in. you should get an high output alt b4 getn caps!!!
03-11-2010
My buddy has an m-2000 and i have an m-500, those amps are awesome and underrated!
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