Would buying a larger cap then i need be bad?
10-08-2011, 04:05 PM
#1
50 Watt CAFz'r
Thread Starter
Join Date: Sep 2011
Posts: 60
Would buying a larger cap then i need be bad?
My system is a single sub with 375w RMS, im very pleased with the sound im getting from it, but i want to add a "stiffening" capacitor to my system right beside my battery, (its under my back seat)
my car has no dimming headlight problems, but my radio lights dim and my battery gauge goes down a few ticks, but still stays at or above 14v.
just wondering because the chart says i would need a .5 farad cap, but 1 farad are more readily available and cheaper, any thoughts?
my car has no dimming headlight problems, but my radio lights dim and my battery gauge goes down a few ticks, but still stays at or above 14v.
just wondering because the chart says i would need a .5 farad cap, but 1 farad are more readily available and cheaper, any thoughts?
10-08-2011, 05:32 PM
#4
you have obviously not searched any threads about caps.. NO NO NO dont waste your money. NO one selling caps have ever shown the benefits of simple couple farad caps. Maybe 100 Farads can act like a small battery.. But a few farads are totaly uselss.
I am an electrical engineer and have done the math.
I am an electrical engineer and have done the math.
10-08-2011, 09:11 PM
#5
there can definitely be sound SQ benefits.
just don't get dragged into thinking a cap will solve a lack of power issue.
caps are great at reducing noise in a system.
http://www.youtube.com/watch?v=KPTlfwgPGyM
check out that video. simple demonstration of an overlooked benefit of a cap.
just don't get dragged into thinking a cap will solve a lack of power issue.
caps are great at reducing noise in a system.
http://www.youtube.com/watch?v=KPTlfwgPGyM
check out that video. simple demonstration of an overlooked benefit of a cap.
10-09-2011, 12:16 AM
#6
500 Watt CAFz'r
Join Date: Sep 2008
Posts: 819
there can definitely be sound SQ benefits.
just don't get dragged into thinking a cap will solve a lack of power issue.
caps are great at reducing noise in a system.
http://www.youtube.com/watchv/KPTlfwgPGyM
check out that video. simple demonstration of an overlooked benefit of a cap.
just don't get dragged into thinking a cap will solve a lack of power issue.
caps are great at reducing noise in a system.
http://www.youtube.com/watchv/KPTlfwgPGyM
check out that video. simple demonstration of an overlooked benefit of a cap.
10-09-2011, 05:40 PM
#7
50 Watt CAFz'r
Thread Starter
Join Date: Sep 2011
Posts: 60
i dont have power issues, the car stays above 14v, but sometimes it bobbles a few ticks up and down (always staying above 14v though) and i was just thinking a cap would "steady" that out,
the sub is a jbl gto and the amp is a jbl 3501, very happy with both
the sub is a jbl gto and the amp is a jbl 3501, very happy with both
10-09-2011, 06:01 PM
#8
you have obviously not searched any threads about caps.. NO NO NO dont waste your money. NO one selling caps have ever shown the benefits of simple couple farad caps. Maybe 100 Farads can act like a small battery.. But a few farads are totaly uselss.
I am an electrical engineer and have done the math.
I am an electrical engineer and have done the math.
If you look through the archives over at carsound.com you might be able to dig up performance graphs from some real world testing which clearly shows the benifits and limitations of using a cap. In most cases you would probably be better off spending your money on a high performance low resistance battery.
10-10-2011, 05:58 PM
#9
To the contrary of what this guy is saying, the smaller 1F cans are the only caps that can help. The inductance of the larger 5-250F+ carbon caps makes them useless.
If you look through the archives over at carsound.com you might be able to dig up performance graphs from some real world testing which clearly shows the benifits and limitations of using a cap. In most cases you would probably be better off spending your money on a high performance low resistance battery.
If you look through the archives over at carsound.com you might be able to dig up performance graphs from some real world testing which clearly shows the benifits and limitations of using a cap. In most cases you would probably be better off spending your money on a high performance low resistance battery.
