us amps md2d is a good one. Mayb find one floating on ebay or pm flakko to see if he can get u a good price on them. Sundownz are good amps, but pricey, mayb find a used one around the classifieds. If u can run .5 that means u can run 2ohms right? If so i'd suggest the zx1500.1, they'll put close to 2000watts and ur system will match //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif