now, there is nothing wrong with a cap. Whoever told you that must be a novice, and antually they are just sitting in the door, they actually were installed in the box behind one of the amps, and there were 2. Everything was kept inside the vehicle.
Two things wrong...
A cap is
not bad. However, how caps function are often inefficient and unfeasible. Let me put it in retrospect... Farads are a unit of power storage... An average capacitor for car audio is 1-10 farads. (10 being extremely expensive.) To put it in view...
The farad formula is C = Q/E, where the legend is C = Farads, Q = coulombs, and E being volts.
Plugging in all the numbers:
1 = Q/12
12 = Q
Since coulomb can most easily be defined as the flow of 1 amperes per second...
That makes it 12 Amperes / second.
Now, @ 12 volts, 12 * 12 = 144 watts. (168 watts @ 14 volts)
While 168 watts is decent, as is 144...
Think of a Battery... A regular AA battery stores nearly 11 thousand Farads.
ELEVEN THOUSAND FARADS.
Last time I checked, that was ELEVEN THOUSAND times more than an average capacitor. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif
And that's just a double A battery.
And, yes. Capacitors were designed to release energy in small jolts. This would make sense if the original source of power was not already a battery, which has a slower discharge rate. But even still, the main source of power is from the alternator, while the excess is pulled from the battery. Multiple batteries allow for more farads to flow, and will be able to conduct more amperes (or farads) than a battery and an average capacitor.
However, a good use for a Capacitor is to cancel out DC-current ripple. (The whole 'fill in the valleys and shave off the peaks' deal.)
But, for what the customer is buying it for, there's a better alternative. Batcap (I believe 800 series) are tiny. Nearly the size of a larger capacitor.
And Plumber's strap?! That's just tacky.
