well im not really sure on the air space. its being thrown into the trunk of a 98 grand prix. ive been doing alot of reading and i want a sub that kind of fits into both classes. SQ is just as important to me as SPL is there a sub that gives me the best of both worlds?

 

You may also want to look at TC Sounds subs. But I don't think there's anyone who sells them in Canada.

 

I'd go with something like a RE SX 12" and it would be great.
as for a GP trunk i ran 3.5cu/ft ported in it and had LOTS of room left (half the trunk) so i'm sure u could do a 4cu/ft ported box or even a tad larger depending.

 

sx12 is about 400 us
type x 12 300 us
l7 is 184 us

all go for around 500 bucks in canada. make sense to you?

 

not alot of people are running ma audio stuff cause its hard to come by in canada..but i am runnin 3 ma audio 12's and they r tight they keep up with 12s..and they through 140 spl at 45 hz with a 900 watt amp...they r in a 3 qubic foot sealed single chamber box so 1 foot per sub..tight and loud..the ma audio subs sound the best of all my systems and cheaper than any alpine kicker or jl sub...woth lookin into