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07.07.2009, 12:08 AM
Who said that no one uses them? I know how much power is stored in one. I also know that it makes no difference on a system other than slightly lessening the voltage sag so that only lighting is not as effected as much, sometimes... I have worked on amplifiers and know the ins and outs of a power supply like not very many people. Surprise they are a lot like a standard brushed ESC.
The path that the energy has to travel through an amp is first to it's own bank of input caps, that energy is switched by the power fets for driving the primary winding of the transformer (one side) and then is induced into the secondary winding of the transformer where the voltage is stepped up, then through a set of diodes into another bank of caps to form one rail for the amplifier to feed off of, if you really want to make an improvement than the secondary side of the amp is the place. I have done it and it makes a much larger change there.
When they "came out" back in the mid 90's I tried them and saw that they were worthless as tits on a boar hog as my Dad would say. The only song that it made any kind of difference with was AC/DC's "Thunderstruck" and that was with 2 1 farad caps and the voltage drop was 1V compared to 4V before on a digital storage O-scope.
People die from capacitance? Not with the ones used in car audio, you would have to be in the perfect storm of events for that to happen. Edit: It takes between 50 and 300 Joules to kill a person and a fully charged 1 Farad at 14.4V will store 103 Joules.
Brian did hit the nail on the head just look as Bose they used the worst speakers I have ever seen and they sound pretty damn awesome for a speaker that came out of an 80’s TV.
Back to the original question you’ll be fine. Like Brian said the amount of current drawn in dynamic. Just with the music at a high listening volume you will probably only pull about 30 amps average.
Jeff
Last edited by J57ltr; 07.07.2009 at 05:27 PM.
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