capacitor choices?

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May 26, 2008 | 09:31 PM

openhelix

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Burning Brakes

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From: Santa Clara CA

capacitor choices?

I'm looking for a 1F cap for my system. I've always thought a cap is a cap is a cap. Anyone have any favorites or reasons why one brand/type is the best? Looking for a 1F unit to support an alpine PDX-5.

thinking maybe the Lightning LSD10 - http://www.woofersetc.com/index.cfm?...roduct_ID=5577 or the RFC-1D - http://www.sonicelectronix.com/item_...ate+RFC1D.html

May 27, 2008 | 11:19 PM

openhelix

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Burning Brakes

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From: Santa Clara CA

ttt anyone have an opinion?

May 27, 2008 | 11:38 PM

Z28Johnny

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From: Salt Lake City Utah

Most people would ask why you want a cap and argue the point that it isn't usually needed.... so first off why do you feel you need a cap?

John

May 27, 2008 | 11:42 PM

openhelix

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Burning Brakes

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From: Santa Clara CA

mainly to stop the dreaded light dimming issue. Without getting into the math of some of the other threads here (I have a CE background and understand the argument) IMO a cap will solve the transient power draw issues.

Not to be dismissive but I didn't ask if I needed a cap I asked assuming I've already decided to get one, are there any significant differences between brands/models?

May 28, 2008 | 05:29 AM

Arfboy

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From: Los Angeles CA

Quote:

Originally Posted by openhelix

I've always thought a cap is a cap is a cap.

Just get whatever you can find cheapest. They're all the same.

May 28, 2008 | 08:03 AM

LloydS

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From: OK

From my experiences they are mostly price and aesthetics. I would stay away from pure budget brands due to questionable construction as I have seen a few that have "deteriorated" over time.

May 28, 2008 | 08:30 AM

Spkrboy

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From: WayTooCloseToNY Northeast PA

Quote:

Originally Posted by openhelix

...are there any significant differences between brands/models?

Yes, there are. The most important spec to look for is the voltage rating. I've seen some rated at 12 volts which isn't high enough and others at 24 volts which is way overkill (there's no advantage at voltages higher than the charging system). 14-16 volts is where it needs to be. Cheap ones will have lower voltage ratings.