I got old capacitor for free, but it has worn so i dont know what is ground what is positive and it has 6 connection points instead of 3 like every other capacitor ive seen. Any tips how to connect it?
Connect an incandescent light bulb to a stiffening cap and see how long it illuminates, then repeat with a battery- which will be a better storage device for long, sustained loud passages with heavy bass?
Any battery rated for at least 600CCA will be batter than any capacitor bank unless the bank is ridiculously large and at that point, it will cost too much to be practical.