see thats the problem. i love the bass in both of those songs. bia bia is great cause it freakin slams. but i love that low bass that will rattle pictures off the wall. the Fs on the subs is 30hz which is just the drop off. i could call treo and give them measurements of my truck so they could get the resonant freq., but it recomends 36-38hz. it will be a 5cube ported with 2200rms
thats what i like to hear... ok, so the box is limited to being 5cubes. so for 2 15 tsx's what size port and what tuning do you think i should go with??