So i blew my two mtx 4500 now i need a new sub

[Steelemayne 10+ year member]

ive got two 10" alpine type r's in a ported box for $125 if u want.

 

[06cobaltssorang 10+ year member]

i just measured my 12 inch ported box and its 20 inches wide 14 inches high and 13 inches long. what do u guys think would be the best setup for a 12 inch sub and my 900 watt boston gt-24 amp.