i have a RF X7 that does 1650@13.4v that will prolly do about 1800wrms at 14.4v. not quite as many watts as u r looking for but it would be hard to notice 100w per sub difference. ill let it go for $350. let me know if u r interested.
//content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif theres a guy selling his kx2500.1 for $450 shipped he needs cash to pay bills , id get on that amp will do 2500+ at 2-ohm... those sx's will be poundin !!