Should I get a Capistor

[stuckinok 5,000+ posts]

/thread

 

[SatterBoi 10+ year member]

I would trade my D31T battery anyday for a capistor... I heard capistors hit 170dbz with no subs

 

[jrmedia 10+ year member]

ok thats why u get a high output alt problem solved

 

[Slim_Shady]

Look this is really a simple thing to discuss here. Capacitors are important in the car audio industry. They are a necessary component inside your amplifier. They do have a function on a much smaller scale than you might guess. They do help provide more stable power, but you are talking about much smaller fluctuations than tenths of volts.
Here is one good example of why a cap is not going to help in a modern subwoofer based system. Look at the specs on the RFC10HB 10F cap from Rockford Fosgate MANUAL LINK. See page 8 where it says "Constant Current Discharge (5A) 15.0v–>3.0v". That means that this thing is only able to give you 5A of constant current. Now I am not some type of genius by any means, but the last time I looked, any sub amp is going to be pulling much more than 5A. Just to give you an idea, that 5A of current translated directly into about 75W of power, not adjusting for amp efficiency. Let's assume your amp is 90% efficient. That would give you about 68W of output from your amp. Tell me that you think your alt is not keeping up and this 68W of power makes the slightest difference. This is not a crap cap. It is from one of the better brands. It is a large cap as well at 10 Farads. Try to make your case now.

I thought I made my case when I stated that my voltage went from 10.5v to 13.5v with the addition of a $150 stinger cap...//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[stuckinok 5,000+ posts]

I would trade my D31T battery anyday for a capistor... I heard capistors hit 170dbz with no subs

fo realz

ok thats why u get a high output alt problem solved

Shut up already...

 

[jrmedia 10+ year member]

wow 2 ppl that dont know what a cap does its only there to make sure that the current is steady and that the power is a clean signal it keeps a level power stream to the amp

 

[stuckinok 5,000+ posts]

wow 2 ppl that dont know what a cap does its only there to make sure that the current is steady and that the power is a clean signal it keeps a level power stream to the amp

Then why don't major SPL competitors use caps if they are so great?

 

[Slim_Shady]

No. Wrong.
A cap hides the fact that a system can't keep up with the power.

What the capacitor does is get charged up once - it releases it's power when the battery can't keep up for a moment, and then what happens?

The alternator now has to charge TWO things at once. Which are wired together. It has to put out more amps, and it puts more strain on the alternator. With the additional strain, for the same effect on boosting the system, you can get a second battery. Which does many times more, as it's wired in a manner to lower the ohm load on the alt, allowing it to provide more power with less work.

Wrong.

When the capacitor is discharging, the battery is charging, and vice versa.

Look it up

 

[shaneb 10+ year member]

Then why don't major SPL competitors use caps if they are so great?

Why do SQ competitors use it?

 

[mrogowski 5,000+ posts]

So I take off for awhile, come back and this conversation is still going...

I think caps are kinda cool. Most of them have nice designs and colouring, plus they have a neat looking LED that reads voltage. That, plus they fill in the empty corner with some audio 'technology'. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Slim_Shady]

So I take off for awhile, come back and this conversation is still going...
I think caps are kinda cool. Most of them have nice designs and colouring, plus they have a neat looking LED that reads voltage. That, plus they fill in the empty corner with some audio 'technology'. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Caps are the devil!

That's why amplifiers don't come from the factory with capacitors!

 

[mrogowski 5,000+ posts]

Caps are the devil!That's why amplifiers don't come from the factory with capacitors!

I don't think the folks here are saying that. If you're set on the fact that adding a few joules of energy from a potential change of ~1.5 volts DC is an improvement, then more power to you. Use the cap.

You can't fool physics though, and if you do the math you will find that everything states otherwise.

 

[atsaubrey 10+ year member]

Why do SQ competitors use it?

I dont know, why DO i use one?

 

[SPLluminator 10+ year member]

I dont know, why DO i use one?

Because your clearly not an spl guy. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[Dutchie. 10+ year member]

I use one farad every watt because i'm that awesome.