Ah, Ok, I think I get it now. You mean to use Ncore as a subwoofer amp? In my last comment I thought you meant just integrating a subwoofer into your main system, but I think I was wrong about that? In that case, an FMOD makes more sense. At first, I didn't really understand why you would want/need them instead of using in-built variable crossovers. In my case, I just use the variable crossovers in the sub plate amps. Sorry for the misunderstanding.