mrray13

as a general rule of thumb...winISD will give you a box tuned for sq. from there u can change the tuning, add (or subtract) box volume, port size ,etc. what you need to do is decide what u are after more...all out spl, sql or sq. u need to take some measurements of where the box(s) are going to see how much room you have and then play around with isd some. my personal box with 8's in it is a single,shared chamber affair, aprox 1.75ft^3(i really ought to measure the damn thing..hehe) with a round port tuned to about 45hz. this was done because at the time i had a factory cassette deck and they won't play below 40 hz or so. oh yeah..in general, lower tuning produces better sq..while higher tuning produces more spl. also remember smaller boxes help a subs suspension and aid in higher power handling. hope that helps wheeeeeeeeeeeeeeeeeeeeee

i would take the 9500 over the w7. i just recently heard a single 12 and it sounded every bit as good as any w7 (i have only heard a 13w7 off a 1000/1 jl) and was almost as loud, considering it was being pushed by a smaller amp (mtx 6500) all things equal...the 9500 can go head to head spl and sq with a comparable w7 and is cheaper....but i give the looks to the w7, installability(is that even a word?) to the 9500 anyway..u get the point..hehe but i'll take my treo ss's over all(seeing how they are installed in my truck, what choice do i have..hehe) wheeeeeeeeeeeeeeeeeeeeee