Not goals but you are not wrapping your head around this. At some point you make the suspension act like an enclosure and you get less excursion and more heating... FWIW a common VGC 4" VC is good for around 600W RMS and 1200 peak before you get into mad power compression. and those shove a LOT of air around. YOu are IB, at some point you have to understand the gozinta and cumzouta in terms of where heat simply kills everything.
many, long story.