con40

You need 1 farad cap for every 1000 watts you pushing out, so yeah you probably do. Good choice on the subs btw my cousin has them in his Is300 and they hit hard as hell. I am not sure if the amp will get hot, what kind is it?

scoobsport98

iTrader: (5)

FYI: Mono amps run much cooler and more efficiently than multichennel amps, due to "class D" circuitry. ...So I bet you're okay on the heat issue, but fans are always recommended in high wattage apps, just to be safe.

And yeah- a 1F cap would fit your needs.

JHub908

Fans aren't necessary, i have an amp under each seat in my car, 1 class d 1 class a/b, both get hot but never so hot i'm scared. On the cap, don't get one they are a waste of money. I have 1500W of amp in my saab 9-2x and the lights barely dim at the highest i dare turn it up. I was actually impressed, but yeah, caps don't really work, they are just another strain on your battery. If you don't believe me search on www.termpro.com and look at what the pros say about them.

edit: kinda hard to find cause their search sucks, but this sums up the general idea
http://audioforum.termpro.com/cgi-bi...;f=40;t=013838 most people agree that it's WAY better to get a better alternator if you have the money or at least a yellow top

pdqwrx

iTrader: (3)

For what it's worth, nobody can predict if your amp will need a fan or not because there are way too many variables to consider. These include but are not limited to....
1) Type of amp, Class A, A/B, D etc.
2) This goes with #1 how efficient your amp and install will be. Did you use the right size wire, do you have a proper ground, do you have much storage capacity like larger battery and cap etc.
3) How well the amp cools itself, some amps do a better job at cooling
And lastly and most important is how loud and how long you are going to play it.
The heat in the heat sink is a byproduct of making power and the more power you make the more heat you will generate. So if you listen to it loud then you may need a fan.
As for a storage cap.....Not all amps will benefit from storage caps as much as others but storage caps DO WORK. They help stabilize the voltage that the amps see and that allows them to work more consistently and efficiently. There are always variables and not everyone sees a huge improvement but they do work.
Infact, the most common reason a person wont see a gain with a cap is because the cap was too small. The 1 farad per 1000 watts idea was developed by two friends of mine, Dave Navone and Richard Clark who are the reason we even have storage caps to buy today. I used to work for their company Autosound 2000 where they design and sell high end audio products as well as consult for such small companies as Kenwood, Monster Cable and Soundgate. You can't have too much capacitance, 10 farads per 1000 watts is great.

Good Luck
Scott