the numbers being siad are suspect
unless u have them 10's in a very i mean very efficient loaded horn or some kind of serious 1 note 6th order bandpass
and have an outraguosly large chambers tuned high(maybe thats wher the 80hz came into play)
then i dont see 2 punch z's (i didnt say stage 1 cuz they wasnt out 7yrs ago)
especialy on 50watts(lineaer power amps are cheater ampos but the way....50watts at 4ohms then at 2 ohms its like 500 watts and at 1 ohm u can get like 1500)
3 type r's doing mid 140's at 20 something hertz.....yeah ok...u must have 3 tcabs side by side or something....cuz tcab boy for some reason has an obsession with type r's so he knows them inside and out(i think)
80