I recently had to buy a legacy amp for my two 10's. It was something I never wanted to do as we all know legacy *****. Anyways this legacy is there 2nd series and it had performed WAY beyond my expectaions! My friend who is a car audio expert about **** his pants when he heard how well the amp pushed my 10's. Also I have beat the crap outta it and it still hasnt overheated or anything like that. So I would say if the legacy you have is series 2 then keep it and spend the money you save on not buying another amp on better subs. Also if you come into some extra money in the future you can always upgrade the amp.