RippleChip

Curious how important it is to have a cap in a system.

I am hooking up a 250 mono ch amp to power one 12" sub as well as a 300 4 ch amp for the rest of the speakers.

JustJeff

only if your bass control goes to 12

wyoA4

A cap is a nice thing to have. Is it needed? You can get by without it, but it will improve your sub performance. The cap stores up extra power so it's on tap when the sub draws more. The battery in your car isn't able to do that effectively since it has to store up enough juice so that the other electronics in your car have it when they need it. Rule of thumb is 1 farad for every 500 watts. You'd only have to worry about one for your sub amp.

dragon-ryder

Nope, it's 1 Farad per 1000W

TH3_FRB

Not necessary but very nice to have...1 farad will do you well