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what is a Capacitor for and should I get one?

Old 02-20-2009, 12:56 PM
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what is a Capacitor for and should I get one?

what is a Capacitor for I have 1 amp and one sub should I Get one?

I Have a Rockford P3001 amp and a Diamond D9 800 RMS doul 4 ohms voice coil sub.
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Old 02-20-2009, 01:41 PM
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Do a search..there's plenty of info on caps!
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Old 02-20-2009, 02:24 PM
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I wouldn't bother. Maybe add in an extra ground (8ga) from your batt to frame and call it a day. If you had a serious system then maybe a a decent battery like stinger, or a batcap
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Old 02-20-2009, 04:04 PM
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For the price of a Capacitor, wait until April and buy a Yellow top Optima battery on sale from Lordco.
Now if you were running 4+ crappy Subs, 2+amps and lots of door speakers, then yeah each blast of bass or sound from the song would drop the power a bit and a cap could help with that....BUT then again it might not.

Start by looking at your setup and see where you might be killing the power
a) Are you gains too high?
b) Are you playing the songs too loud
c) Have you done the big 3 upgrade?
c) Are your lights even dimming on big bass songs?

If your lights are dimming and your tach goes nutz with each bass hit, then try turning down the gains on the amp a little bit. Then turn up the volume on the head unit. 6/10 times this is the issue and you can get better sound quality out of it too.

All a cap does is have a place to store energy for when your sound system needs to draw a lot of power quickly before the next big sound burst.... Think of it like a garden hose pouring into a bucket. Your friend runs up and hits you with the water gun so you throw the bucket of water at him. If you have a cap (second bucket) you could be filling that up and be ready to hit him with the water sooner. For most R&B, you don't drain all your power on a single bass beat or even in a song because there is a delay between the hits and your car can restor power before the next one.

Now on 4+ 12" subs... it might have more trouble gaining power in time... but then we are talking about something more than you have.


So the simple answer... No you don't need a cap. 90% of the people with caps, don't need them.
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Old 02-20-2009, 04:06 PM
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You could also invest in better subs if you are having power fluctuation problems. Good subs don't require a minimum power to move them. i.e., Sony xplodes required about 100-200 watts just to move the cone. Bostons can run a whole sound system very well on about 150-200watts.
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Old 02-20-2009, 05:06 PM
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Originally Posted by Scottie View Post
what is a Capacitor for I have 1 amp and one sub should I Get one?

I Have a Rockford P3001 amp and a Diamond D9 800 RMS doul 4 ohms voice coil sub.
you don't need a cap for that amp. It only makes 300watts [email protected] ohms(I know for sure cause I used to have one)
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Old 02-20-2009, 06:17 PM
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your giving a beautiful sub like that some RF shitty power?

time to look for a new amp
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Old 02-22-2009, 12:31 AM
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Question

Originally Posted by jalat View Post
your giving a beautiful sub like that some RF shitty power?

time to look for a new amp
I've heard 3 different systems with one of those amps running a 2ohm load....each one played for hours without any heat issues and the birth certificates averaged around 375w or so.....it might not be as stellar as you'd like for that sub but the owners seemed pretty happy with them.....

Aside from the fact the sub can handle twice the power I'm not seeing a problem.....

To the OP, if you're not seeing any headlight problems when the system is running, your electrical system is strong enough to handle the amp. If you are, go look at this thread and get those wires done first. It will cost you much less than a cap and will do a better job not only for the stereo but your car in general............ BTW, I am assuming you are running at least 4ga power and ground wire to the amp...if not, you should.

Any other questions, get back to us.........
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Old 02-22-2009, 02:03 AM
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Someone on this site told me once.
"A cap can only help if you have the power there to start with" If your drawing more than your alt can handle a cap is not going to help.
Get a better batt. and do the big 3 and you should be fine.
I however got a HC1800 and did the big 3 with 0 guage and it still didn't help. Since my alt only pumps out 105 amps and the don't make upgradedd alts for the Cobalt SS/SC , plus I don't want to do the rewind and have heat issues looks like I'm going to have to get a alt built from the ground up, just finding out where to do it is the problem. SQMonster recomended a place in Surrey with a guy named Rob, but I forgot the name of the shop and forgot to ask a ballpark on how much it going to cost, I know its going to be expensive but I would like to set the money aside before I go there
Can anyone tell me roughly how much I should bank on?
Something around 200 amps
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Old 02-22-2009, 02:12 AM
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In a new, larger case with a custom bracket to fit it in your car.......Take $500 with you and if you get change back buy a new CD on the way home....
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