iam wanting to upgrade my audio system soo iam thinking of buying either kicker or alpine??? i want either 2 of solo classic http://www.kicker.com/solo-classic or 2 of alpine type r http://www.alpine-usa.com/product/view/swr-1243d/ which one will hit the hardest??? Sealed or ported enclosure? what amp or amps are the best for them? do i need anything else like capacitor extra battery or what??? PLEASE HELP