looking for 300 for a pair any suggestions.?

Any pair of dvc 4 ohm subs in the PROPER custom box. AS was pointed out above, if the amp has a 60 amp fuse in it, how on earth is it going to make 1500 watts? I would think more like 500 - 600 watts is a little more realistic IF the fuse is that size. MB Quart makes some great subs with a 3 year warranty on them. There are piles of subs that you can look at, choose the ones that will suit the available airspace properly.

Image Dynamics ID12 would kick some butt in that price range