look up credence subs on e-bay. they are brand new stillwater kicker solobaric s12d's for $129 a pair. i run them and wouldn't change them for anything under $700 each. they are so tight and fast yet hit so low. they will handle gobs of power but you have to run them in a sealed .88 cuft box with 1/2 polyfill. i'm looking for anothet set if you see the original kickers.... i have to have the logo or i'd go with the credence.