Sorry boba but you are wrong about legacy LNBs and switches. IIRC all Dish receivers, including those with model numbers in the 1000's, will work with legacy equipment. So the OP... Oops the guy who hijacked this thread about legacy LNBs, should be OK doing what he is now proposing. Certainly going with the new DPP assembly for a 500+ would be more elegant, but if he already has the legacy equipment, he might as well make good use of it.