I knew someone would say this.Xmax is not a good indicator of how low a sub can play. Not hardly, especially when discussing a ported box.
why the bl though?I've heard both and prefer the Q. I've honestly never heard a W7 I would be happy with.
From what it sounds like I'd lean towards the BL in your situation too. My brother has a 12" BL, and I've heard 18" Bls, and they get lows great in a low tuned enclosure.
theres so many options lol what should i get?Because I have heard them in a ported box and though they sounded great. If you build a good box for it you should be happy. If you plan on entering SQ competitions and busting out the RTA to try and get a flat eq and all that, maybe the Q is for you. But if you want it to sound good and tend to listen to music with a bit more bass heavy attitude the BL would be my choice. I think in the right enclosure it has the potential to sound great for daily beating.
You already said you are upgrading to go louder, and the BL should do this.
the problem with hearing most w7s is the ppl that have them....standard HO box with the jl 500 or jl 1000 going to it......
Well according to the Big 12" challenge, the Fi Q will get a whole lot louder and play better over a wider range of frequencies than the w7.
As far as Fi BL and Fi Q, I've heard that the BL doesn't get that much louder than Q and sacrifices alot of sq while doing so, that was my deciding factor when I got my Fi Q.