Originally posted by jjennings:
Pretty much all caps some from the same place, they just have different stickers on them. Get one from a reputable audio shop, and you shouldn't have any problems, as long as it's initially charged right.
Not all are created equal, Look for low ESR ratings and 24V max caps (avoid the ones marked 16/20V max)
Caps are useful for the initial voltage spikes, but over the long run adding a second battery is the better way to go.
